Answer:
in_season_price = 120.0
off_season_price = 70.0
price = 0
season = input("Which season you plan to rent \"IN/OFF\" season: ")
days = int(input("Enter the days you want to rent: "))
if season == "IN":
price = in_season_price * days
elif season == "OFF":
price = off_season_price * days
print("Rental price is: " + str(price))
Explanation:
Set the prices for in and off season
Ask the user to choose the season and number of days they want to stay
Depending on the user choice calculate the price, multiply the season price with the number of days
Print the total price
According to the best practices most widely adopted to protect users and organizations, _______________ employs an approach that sets up overlapping layers of security as the preferred means of mitigating threats. patch management unique identity layered defense / defense-in-depth encryption
Answer:
layered defense / defense-in-depth
Explanation:
Layered defence is majorly used to describe a security system that is build using multiple tools and policies to safeguard multiple areas of the network against multiple threats including worms, theft, unauthorized access, insider attacks and other security considerations.
A layered defense at the same time is meant to provide adequate security at the following levels: system level security, network level security, application level security, and transmission level security.
Also called a multi-layered defense.
Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 400 msec and 25 msec, respectively (see Section 3.5.3 for a discussion of these variables). Suppose that the next three measured values of the RTT are 210, 400, and 310 respectively.
Compute TCP's new value of estimatedRTT, DevRTT, and the TCP timeout value after each of these three measured RTT values is obtained. Use the values of α = 0.125 and β = 0.25. a. Measured value RTT=350 msec Measured value RTT=325 msec c. Measured value RTT=250 msec estimatedRTT = ? DevRTT = ? TimeoutInterval = ?
Final answer:
The RTT, estimatedRTT, DevRTT, and TimeoutInterval are important TCP parameters used to manage data transmission reliability. Without specific RTT measurements, we cannot calculate exact values for them. The formulas for updating these values are weighted averages and take into account the most recent RTT measurements.
Explanation:
In Transmission Control Protocol (TCP), the round trip time (RTT) is a measure of the time a signal takes to be sent plus the time it takes for an acknowledgment of that signal to be received. This time is used by TCP to adjust the timeout interval for packet retransmission. The variables estimatedRTT and DevRTT are used to calculate the TimeoutInterval, which determine how long TCP waits for an acknowledgment before resending a packet.
To update estimatedRTT and DevRTT after each measured RTT:
For a new measured RTT, calculate the new estimatedRTT using the formula:However, to provide an accurate answer, we need the specific RTT measurements to calculate the exact values for estimatedRTT, DevRTT, and TimeoutInterval.
Write a program that calculates payments for loan system. Implement for both client and Server. - The client sends loan information to the server o annual interest rate o number of years o loan amount - The server computes monthly payment and total payment. - When the user presses the ‘Submit’ key, the server sends them back to the client. - Must use JavaFX - For computation follow the formulas below o monthlyInterestRate = annualInterestRate / 1200; o monthlyPayment = loanAmount * monthlyInterestRate / (1 - 1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12)); o totalPayment = monthlyPayment * numberOfYears * 12;
Answer:
Check the explanation
Explanation:
//Define the class.
public class Loan implements java.io.Serializable {
//Define the variables.
private static final long serialVersionUID = 1L;
private double annualInterestRate;
private int numberOfYears;
private double loanAmount;
private java.util.Date loanDate;
//Define the default constructor.
public Loan() {
this(2.5, 1, 1000);
}
//Define the multi argument constructor.
protected Loan(double annualInterestRate, int numberOfYears,
double loanAmount) {
this.annualInterestRate = annualInterestRate;
this.numberOfYears = numberOfYears;
this.loanAmount = loanAmount;
loanDate = new java.util.Date();
}
//Define the getter and setter method.
public double getAnnualInterestRate() {
return annualInterestRate;
}
public void setAnnualInterestRate(double annualInterestRate) {
this.annualInterestRate = annualInterestRate;
}
public int getNumberOfYears() {
return numberOfYears;
}
public void setNumberOfYears(int numberOfYears) {
this.numberOfYears = numberOfYears;
}
public double getLoanAmount() {
return loanAmount;
}
public void setLoanAmount(double loanAmount) {
this.loanAmount = loanAmount;
}
//Define the method to compute the monthly payment.
public double getMonthlyPayment() {
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 -
(Math.pow(1 / (1 + monthlyInterestRate), numberOfYears * 12)));
return monthlyPayment;
}
//Define the method to get the total payment.
public double getTotalPayment() {
double totalPayment = getMonthlyPayment() * numberOfYears * 12;
return totalPayment;
}
public java.util.Date getLoanDate() {
return loanDate;
}
}
//Define the client class.
public class ClientLoan extends Application {
//Create the server object.
ServerLoan serverLoan;
//Declare the variables.
int y;
double r, a, mp=0, tp=0;
String result,d1;
//Create the button.
Button b = new Button("Submit");
//Define the method stage.
public void start(Stage primaryStage) throws Exception {
TimeZone.setDefault(TimeZone.getTimeZone("EST"));
TimeZone.getDefault();
d1 = "Server Started at " +new Date();
//Create the GUI.
Label l1=new Label("Annual Interest Rate");
Label l2 = new Label("Number Of Years:");
Label l3 = new Label("Loan Amount");
TextField t1=new TextField();
TextField t2=new TextField();
TextField t3=new TextField();
TextArea ta = new TextArea();
//Add the components in the gridpane.
GridPane root = new GridPane();
root.addRow(0, l1, t1);
root.addRow(1, l2, t2, b);
root.addRow(5,l3, t3);
root.addRow(6, ta);
//Add gridpane and text area to vbox.
VBox vb = new VBox(root, ta);
//Add vbox to the scene.
Scene scene=new Scene(vb,400,250);
//Add button click event.
b.setOnAction(value -> {
//Get the user input from the text field.
r = Double.parseDouble(t1.getText());
y = Integer.parseInt(t2.getText());
a = Double.parseDouble(t3.getText());
//Create the loan class object.
Loan obj = new Loan(r, y, a);
//Call the method to compute the results.
mp = obj.getMonthlyPayment();
tp = obj.getTotalPayment();
//Format the results.
result = "Annual Interest Rate: "+ r+"\n"+
"Number of Years: "+y+"\n"+
"Loan Amount: "+a+"\n"+
"monthlyPayment: "+mp+"\n"+
"totalPayment: "+tp;
//Add the result to the textarea.
ta.setText(result);
//Create an object of the server class.
serverLoan = new ServerLoan(this);
});
//Set the scene to the stage.
//Set the stage title.
//Make the scene visible.
primaryStage.setScene(scene);
primaryStage.setTitle("ClientLoan");
primaryStage.show();
}
//Define the main method lauch the application.
public static void main(String args[])
{
launch(args);
}
//Define the server class.
class ServerLoan extends Stage {
//Create the client loan object.
ClientLoan parent;
//Create the stage object.
Stage subStage;
//Create the text area.
TextArea ta = new TextArea();
//Define the constructor.
private ServerLoan(ClientLoan aThis) {
//Get the time in desired timezone.
TimeZone.setDefault(TimeZone.getTimeZone("EST"));
TimeZone.getDefault();
//Format the date with message.
String d2 = "Connected to client at " +new Date();
//Initialize the object.
parent = aThis;
//Add the date and the result to
//the text area.
ta.setText(d1);
ta.appendText("\n"+ d2);
ta.appendText("\n"+result);
//Create the grouppane.
GridPane root = new GridPane();
//Add text area to the group pane.
root.addRow(0, ta);
//Initialise the stage object.
subStage = new Stage();
//Add gridpane to the scene.
Scene scene = new Scene(root, 400, 200);
//Set the scene to the stage.
//Set the stage title.
//Make the scene visible.
subStage.setScene(scene);
subStage.setTitle("ServerLoan");
subStage.show();
}
}
}
Kindly check the Output in the attached image below.
Answer:
see explaination
Explanation:
Program code below:
oan.java:
//Define the class.
public class Loan implements java.io.Serializable {
//Define the variables.
private static final long serialVersionUID = 1L;
private double annualInterestRate;
private int numberOfYears;
private double loanAmount;
private java.util.Date loanDate;
//Define the default constructor.
public Loan() {
this(2.5, 1, 1000);
}
//Define the multi argument constructor.
protected Loan(double annualInterestRate, int numberOfYears,
double loanAmount) {
this.annualInterestRate = annualInterestRate;
this.numberOfYears = numberOfYears;
this.loanAmount = loanAmount;
loanDate = new java.util.Date();
}
//Define the getter and setter method.
public double getAnnualInterestRate() {
return annualInterestRate;
}
public void setAnnualInterestRate(double annualInterestRate) {
this.annualInterestRate = annualInterestRate;
}
public int getNumberOfYears() {
return numberOfYears;
}
public void setNumberOfYears(int numberOfYears) {
this.numberOfYears = numberOfYears;
}
public double getLoanAmount() {
return loanAmount;
}
public void setLoanAmount(double loanAmount) {
this.loanAmount = loanAmount;
}
//Define the method to compute the monthly payment.
public double getMonthlyPayment() {
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 -
(Math.pow(1 / (1 + monthlyInterestRate), numberOfYears * 12)));
return monthlyPayment;
}
//Define the method to get the total payment.
public double getTotalPayment() {
double totalPayment = getMonthlyPayment() * numberOfYears * 12;
return totalPayment;
}
public java.util.Date getLoanDate() {
return loanDate;
}
}
ClientLoan.java:
package application;
//Import the required packages.
import java.util.Date;
import java.util.TimeZone;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
//Define the client class.
public class ClientLoan extends Application {
//Create the server object.
ServerLoan serverLoan;
//Declare the variables.
int y;
double r, a, mp=0, tp=0;
String result,d1;
//Create the button.
Button b = new Button("Submit");
//Define the method stage.
public void start(Stage primaryStage) throws Exception {
TimeZone.setDefault(TimeZone.getTimeZone("EST"));
TimeZone.getDefault();
d1 = "Server Started at " +new Date();
//Create the GUI.
Label l1=new Label("Annual Interest Rate");
Label l2 = new Label("Number Of Years:");
Label l3 = new Label("Loan Amount");
TextField t1=new TextField();
TextField t2=new TextField();
TextField t3=new TextField();
TextArea ta = new TextArea();
//Add the components in the gridpane.
GridPane root = new GridPane();
root.addRow(0, l1, t1);
root.addRow(1, l2, t2, b);
root.addRow(5,l3, t3);
root.addRow(6, ta);
//Add gridpane and text area to vbox.
VBox vb = new VBox(root, ta);
//Add vbox to the scene.
Scene scene=new Scene(vb,400,250);
//Add button click event.
b.setOnAction(value -> {
//Get the user input from the text field.
r = Double.parseDouble(t1.getText());
y = Integer.parseInt(t2.getText());
a = Double.parseDouble(t3.getText());
//Create the loan class object.
Loan obj = new Loan(r, y, a);
//Call the method to compute the results.
mp = obj.getMonthlyPayment();
tp = obj.getTotalPayment();
//Format the results.
result = "Annual Interest Rate: "+ r+"\n"+
"Number of Years: "+y+"\n"+
"Loan Amount: "+a+"\n"+
"monthlyPayment: "+mp+"\n"+
"totalPayment: "+tp;
//Add the result to the textarea.
ta.setText(result);
//Create an object of the server class.
serverLoan = new ServerLoan(this);
});
//Set the scene to the stage.
//Set the stage title.
//Make the scene visible.
primaryStage.setScene(scene);
primaryStage.setTitle("ClientLoan");
primaryStage.show();
}
//Define the main method lauch the application.
public static void main(String args[])
{
launch(args);
}
//Define the server class.
class ServerLoan extends Stage {
//Create the client loan object.
ClientLoan parent;
//Create the stage object.
Stage subStage;
//Create the text area.
TextArea ta = new TextArea();
//Define the constructor.
private ServerLoan(ClientLoan aThis) {
//Get the time in desired timezone.
TimeZone.setDefault(TimeZone.getTimeZone("EST"));
TimeZone.getDefault();
//Format the date with message.
String d2 = "Connected to client at " +new Date();
//Initialize the object.
parent = aThis;
//Add the date and the result to
//the text area.
ta.setText(d1);
ta.appendText("\n"+ d2);
ta.appendText("\n"+result);
//Create the grouppane.
GridPane root = new GridPane();
//Add text area to the group pane.
root.addRow(0, ta);
//Initialise the stage object.
subStage = new Stage();
//Add gridpane to the scene.
Scene scene = new Scene(root, 400, 200);
//Set the scene to the stage.
//Set the stage title.
//Make the scene visible.
subStage.setScene(scene);
subStage.setTitle("ServerLoan");
subStage.show();
}
}
}
Jayden wants to take a current theme but just change a little bit of it. Complete the steps to help Jayden.
Answer:The theme can be automatically changed via the default settings
Explanation:
Answer:
Go to the ✔ Page Layout tab on the ribbon and the ✔ Themes group. Click Themes and select one. Go into the workbook, make the changes, and return to the Themes gallery. Select ✔ Save Current Theme to save the changes.
Explanation:
Suppose you are given a sequence or array of n real numbers (a1, a2, . . . , an), all distinct. We are interested in sorting this list, and ideally sorting it as efficiently as possible / with minimal effort. All information relevant to sorting a list can be thought of as contained in the order permutation. If a list (a1, a2, a3) has an ordering permutation of (3, 1, 2), that would mean a3 ≤ a1 ≤ a2, hence, the sorted form of the list would be (a3, a1, a2). This permutation encodes how all the elements compare to one another.
1) How many possible ways could a list of n values be ordered, i.e., how many ordering permutations are there?
2) Argue that if you know a list’s order permutation, sorting is easy (linear time), and conversely, if you know the steps to sort the list, you can easily generate the order permutation.
3) Given this, argue that sorting can’t be easier than finding the order permutation.
4) If every element comparison (testing where ai ≤ aj ) provides at most one bit of information, argue that in order to be able to sort any list, you need to perform at least approximately log2 (n!) many comparisons.
5) Based on the prior result, argue that merge sort is, asymptotically, as or more efficient than any other sorting algorithm.
Answer:
1. n
2. we can slect that permutation without any comparison and the array wil be sorted in to one time.
3. we cannot sort the list without any comparision test.
Explanation:
1. The total number of permutations available are n! because there are ' n ' distinct elements in an array.
2. Here we are given the total ordering permutations, among those available permutations there will be one permutation in which all the elements of the array are sorted. so, we can slect that permutation without any comparison and the array wil be sorted in to one time.
3. If there is no total ordering permutation then we cannot sort the list without any comparision test. In this case we should know the the number of inversion required to see the array. Based on the permutations we can select the permutation which requires minimum inversions. Here inversion sort works well.
See attachment for the details of 4 and 5.
The Daily Trumpet newspaper accepts classified advertisements in 15 categories such as Apartments for Rent and Pets for Sale. Develop the logic for a program that accepts classified advertising data, including a category code (an integer 1 through 15) and the number of words in an ad. Store these values in parallel arrays. Then sort the arrays so that the records are sorted in ascending order by category. The output lists each category number, the number of ads in the category, and the total number of words in the ads in the category. Using the following pseudocode. Thank you.
// Pseudocode PLD Chapter 8 #7a pg. 366
// Start
// Declarations
// num MAXADS = 100
// num adcatcode[MAXADS]
// num adwords[MAXADS]
// num curCode
// num numads
// num i
// num j
// num k
// num subtotal
// num temp
// output "Please enter the number of ads: "
// input numads
// if ((numads > 0) and (numads <= MAXADS))
// for i = 0 to numads - 1
// output "Please enter Advertisement Category Code (1 - 15): "
// input adcatcode[i]
// output "Please enter number of words for the advertisement: "
// input adwords[i]
// endfor
// for i = 0 to numads - 2
// for j = 0 to numads - 2
// if (adcatcode[j] > adcatcode[j+1])
// temp = adcatcode[j]
// adcatcode[j] = adcatcode[j+1]
// adcatcode[j+1] = temp
// temp = adwords[j]
// adwords[j] = adwords[j+1]
// adwords[j+1] = temp
// endif
// endfor
// endfor
// output "Total Word Counts Sorted By Category Code"
// output "========================================="
// k = 0
// while k <= numads - 1
// subtotal = 0
// curCode = adcatcode[k]
// while ( (curCode == adcatcode[k]) and (k <= numads - 1) )
// subtotal = subtotal + adwords[k]
// k = k + 1
// endwhile
// output "Category: ",adcatcode[k - 1], " ","Word Count: ", subtotal
// endwhile
// else
// output "Number adds requested less than 1 or is too large; ad limit is ", MAXADS
// endif
// Stop
Answer:
see explaination
Explanation:
#include<iostream>
using namespace std;
#define MAXDAS 100
int main()
{
//int MAXADS = 100;
int adcatcode[MAXDAS];
int adwords[MAXDAS];
int curCode;
int numads;
int i,j,k;
int subtotal;
int temp;
cout<<"Please enter the number of ads: ";
cin>>numads;
if((numads > 0) and (numads <= MAXDAS))
{
for (i = 0;i<numads;i++)
{
cout<<"Please enter Advertisement Category Code (1 - 15): ";
cin>>adcatcode[i];
cout<<"Please enter number of words for the advertisement: ";
cin>>adwords[i];
}
for (i=0;i<numads-1;i++)
{
for (j = 0;j<numads-1;j++)
{
if (adcatcode[j] > adcatcode[j+1])
{
temp = adcatcode[j];
adcatcode[j] = adcatcode[j+1];
adcatcode[j+1] = temp;
temp = adwords[j];
adwords[j] = adwords[j+1];
adwords[j+1] = temp;
}
}
}
cout<<"Total Word Counts Sorted By Category Code"<<endl;
cout<<"========================================="<<endl;
k = 0;
while(k<=numads-1)
{
subtotal = 0;
curCode = adcatcode[k];
while ( (curCode == adcatcode[k])&& (k <= numads - 1) )
{
subtotal = subtotal + adwords[k];
k = k + 1;
}
cout<<"Category: "<<adcatcode[k - 1]<<" "<<"Word Count: "<<subtotal<<endl;
}
}
else
{
cout<<"Number adds requested less than 1 or is too large; ad limit is :"<<MAXDAS;
}
return 0;
}
See attachment for output
How does join work? a. You write separator.join('a', 'b', 'c', 'd', ...) where 'a', 'b', 'c', 'd' can be replaced with other strings, but isn't in a list. b. The separator must be a single character, and you use list.join(separator). c. You use separator.join(a_list) where a_list is a list of strings. d. You write a_list.join(separator) where a_list is a list of strings, and separator is a string.
Answer:
c. You use separator.join(a_list) where a_list is a list of strings.
Explanation:
The join() is an in-built string method which returns a string concatenated with the elements of an iterable. It concatenates each element of an iterable (such as list, string and tuple) to the string and returns the concatenated string.
The syntax of join() is:
string.join(iterable)
From the above syntax, the string usually mean a separator and the iterable will be a string or list or tuple.
The answer is C.
c. You use separator.join(a_list) where a_list is a list of strings.
It is not A because the iterable could be a string. It is not D because the separator is outside not in the bracket.
Write a program that plays a reverse guessing game with the user. The user thinks of a number between 1 and 10, and the computer repeatedly tries to guess it by guessing random numbers. It’s fine for the computer to guess the same random number more than once. At the end of the game, the program reports how many guesses it made.
Answer:
import random target = 7 count = 0 for i in range(100): guess = random.randint(1,10) if(guess == target): count += 1 print("Total of correct guess: " + str(count))Explanation:
The solution is written in Python 3.
Firstly, import the random module since we are going to simulate the random guess by computer. Next, we presume user set a target number 7 (Line 3). Create a counter variable to track the number of correct guess (Line 4).
Presume the computer will attempt one hundred times of guessing and we use randint to repeatedly generate a random integer between 1 - 10 as guess number (Line 6). If the guess number is equal to the target, increment count by one (Line 8-9).
Display the total number of right guess to terminal (Line 11).
Keyshia adds an image of a triple beam balance and a
Bunsen burner to a slide in her presentation. Now she
wants to group these images so she can modify them
together.
Order the steps to outline how images are grouped in
PowerPoint
Step 1:
Step 2:
Step 3
Step 4
Answer:
Step 1:
✔ Select all images.
Step 2:
✔ Go to the Picture Tools Format tab.
Step 3:
✔ Choose the Arrange group.
Step 4:
✔ Choose the Group option.
Explanation:
The order of the steps to outline how images are grouped in PowerPoint are:
Step 1: Select all images.
Step 2: Go to the Picture Tools Format tab.
Step 3: Choose the Arrangement group.
Step 4: Choose the Group option.
What is PowerPoint?
A PowerPoint slideshow (PPT) is a presentation made using Microsoft software that enables users to include audio, visual, and audio/visual components. It is regarded as a multimedia technology that also serves as a tool for sharing and collaborating on content.
And so he set out to develop a presentation application that would offera simple way to produce and deliver slides, working with engineers Thomas Rudkin and Dennis Austin. They called it Presenter, but PowerPoint eventually replaced it.
Therefore, the steps are:
Step 1: Select all images.Step 2: Go to the Picture Tools Format tab.Step 3: Choose the Arrangement group.Step 4: Choose the Group optionTo learn more about PowerPoint, refer to the link:
https://brainly.com/question/14498361
#SPJ2
Write a Python function LetterGame() that repeatedly asks the user to input a letter. The function is to count the number of vowels the user entered. The function should stop if the user enters a digit (0-9). a) Use a while-loop and in the while loop ask the user to input a letter or to input a digit to stop. b) Check if the user entered a vowel (if command is your friend) c) If the user entered a vowel increase the counter by one d) If the user entered a digit, output the number of letters the user entered and the number and percentage of vowels among them. e) Call the function. Expected output: You entered 10 letters, 2 of which were vowels. The percentage of vowels was 20%.
Answer:
def LetterGame():
vowels = ["a", "e", "i", "o", "u", "A", "E", "I", "O", "U"]
count1 = count2 = 0
while True:
choice = input("Enter a letter / digit to stop: ")
if choice.isdigit():
break
elif choice.isalpha():
count1 += 1
if choice in vowels:
count2 += 1
print("You entered " + str(count1) + " letters, " + str(count2) + " of which weere vowels.")
print("The percentage of vowels was " + str(count2 / count1 * 100) + "%")
LetterGame()
Explanation:
Create a function called LetterGame
Inside the function:
Create a list of vowels
Initialize count1, counts the total letters, and count2, counts the vowels
Initialize a while loop that iterates until the specified condition is met in the loop
Get the input from the user. If it is a digit, stop the loop. If it is an alphabet, increase the count1 by 1, and also check if it is a vowel. If it is a vowel, increment the count2 by 1
When the loop is done, print the required information
Finally, call the function
1) Write expressions of relational algebra for the following queries draw the query trees for each and write the SQL statement: a. What PC models have a speed of at least 3.00 b. What the model numbers of all color printers c. Which manufacturer make laptops with at least 100 GB d. Find the model and price of all products (of any type) made by manufacturer "B" e. Find the manufacturers that sell laptops but not PC.
Answer:
Explanation:
Find attach the solution
The expressions of relational algebra for the given queries and the query trees for each with the SQL statement are explained.
Given are expressions for the given queries in relational algebra, draw the query trees, and provide the corresponding SQL statements:
Let's assume we have the following tables:
PC (model, speed, ram, hd, price)
Printer (model, color, type, price)
Laptop (model, speed, ram, hd, screen, price)
Product (model, type, price)
Manufacturer (name, country)
a. Relational algebra expression: π model (σ speed ≥ 3.00 (PC))
Query tree:
π model
|
σ speed >= 3.00
|
PC
SQL statement:
SELECT model
FROM PC
WHERE speed >= 3.00;
b. Relational algebra expression: π model (σ color = 'color' (Printer))
Query tree:
π model
|
σ color = 'color'
|
Printer
SQL statement:
SELECT model
FROM Printer
WHERE color = 'color';
(Note: Replace 'color' with the actual value representing color printers.)
c. Relational algebra expression: π name (σ hd ≥ 100 (Laptop ⋈ Manufacturer))
Query tree:
π name
|
σ hd >= 100
|
Laptop ⋈ Manufacturer
SQL statement:
SELECT DISTINCT m.name
FROM Laptop l
INNER JOIN Manufacturer m ON l.model = m.model
WHERE l.hd >= 100;
d. Relational algebra expression: π model, price (σ name = 'B' (Product ⋈ Manufacturer))
Query tree:
π model, price
|
σ name = 'B'
|
Product ⋈ Manufacturer
SQL statement:
SELECT p.model, p.price
FROM Product p
INNER JOIN Manufacturer m ON p.model = m.model
WHERE m.name = 'B';
e. Relational algebra expression: π name (Manufacturer) - π name (σ type = 'PC' (Product ⋈ Manufacturer)) ⋈ π name (σ type = 'Laptop' (Product ⋈ Manufacturer))
Query tree:
π name (Manufacturer)
|
-
/ \
/ \
π name π name (σ type = 'Laptop' (Product ⋈ Manufacturer))
|
σ type = 'PC'
|
Product ⋈ Manufacturer
SQL statement:
SELECT DISTINCT m.name
FROM Manufacturer m
WHERE m.name NOT IN (
SELECT DISTINCT m2.name
FROM Product p
INNER JOIN Manufacturer m2 ON p.model = m2.model
WHERE p.type = 'PC'
)
AND m.name IN (
SELECT DISTINCT m3.name
FROM Product p
INNER JOIN Manufacturer m3 ON p.model = m3.model
WHERE p.type = 'Laptop'
);
Please note that the SQL statements assume the actual column names in the tables may vary, and you need to adjust them accordingly.
Learn more about SQL statements click;
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You are trying to appreciate how important the principle of locality is in justifying the use of a cache memory, so you experiment with a computer having an L1 data cache and a main memory (you exclusively focus on data accesses). The latencies (in CPU cycles) of the different kinds of accesses are as follows: cache hit, 1 cycle; cache miss, 105 cycles; main memory access with cache disabled, 100 cycles.
a. [10] When you run a program with an overall miss rate of 5%, what will the average memory access time (in CPU cycles) be?
b. [10] Next, you run a program specifically designed to produce completely random data addresses with no locality. Toward that end, you use an array of size 256 MB (all of it fits in the main memory). Accesses to random elements of this array are continuously made (using a uniform random number generator to generate the elements indices). If your data cache size is 64 KB, what will the average memory access time be?
c. [10] If you compare the result obtained in part (b) with the main memory access time when the cache is disabled, what can you conclude about the role of the principle of locality in justifying the use of cache memory? d. [15] You observed that a cache hit produces a gain of 99 cycles (1 cycle vs. 100), but it produces a loss of 5 cycles in the case of a miss (105 cycles vs. 100). In the general case, we can express these two quantities as G (gain) and L (loss). Using these two quantities (G and L), identify the highest miss rate after which the cache use would be disadvantageous.
Answer:
Explanation:
Attached is the solution
Write a regular expression pattern that matches strings representing trains. A single letter stands for each kind of car in a train: Engine, Caboose, Boxcar, Passenger car, and Dining car. There are four rules specifying how to form trains. 1. One or more Engines appear at the front; one Caboose at the end. 2. Boxcars always come in pairs: BB, BBBB, etc. 3. There cannot be more than four Passenger cars in a series. 4. One dining car must follow each series of passenger cars. These cars cannot appear anywhere other than these locations. Here are some legal and illegal exemplars. EC Legal: the smallest train EEEPPDBBPDBBBBC Legal : simple train showing all the cars EEBB Illegal: no caboose (everything else OK) EBBBC Illegal: three boxcars in a row EEPPPPPDBBC Illegal: more than four passenger cars in a row EEPPBBC Illegal: no dining car after passenger cars EEBBDC Illegal: dining car after box car Hint: my RE pattern was 16 characters.
Answer:
See explaination
Explanation:
import re
def isValidTrain(train):
pattern = r'^E+(((P|PP|PPP|PPPP)D)*(BB)*)*C$'
if re.match(pattern, train):
return True
return False
def checkAndPrintTrain(train):
print("Train", train, "is valid:", isValidTrain(train))
checkAndPrintTrain("EC")
checkAndPrintTrain("EEEPPDBBPDBBBBC")
checkAndPrintTrain("EEBB")
checkAndPrintTrain("EBBBC")
checkAndPrintTrain("EEPPPPPPDBBC")
checkAndPrintTrain("EEPPBBC")
checkAndPrintTrain("EEBBDC")
Sample output
Train EC is valid: True
Train EEEPPDBBPDBBBBC is valid: True
Train EEBB is valid: False
Train EBBBC is valid: False
Train EEPPPPPPDBBC is valid: False
Train EEPPBBC is valid: False
Train EEBBDC is valid: False
Hot sites ________. are a.more expensive than CDP b.Lose less data during a disaster than CDP c.Both are more expensive than CDP and Lose less data during a disaster than CDP d.Neither are more expensive than CDP nor Lose less data during a disaster than CDP
Answer:
d. Neither are more expensive than CDP nor Lose less data during a disaster than CDP
Explanation:
A hot site is considered a site that remain very much functional and permits immediate recovery when a disaster occurs. One great advantage of hot sites is that they can be used for operation before the occurrence of a disaster. Hot sites are usually cost effective and hence are less expensive than CDP. With hot sites, users are only faced with minimal downtime in the course of a disaster that affects one of the data centers, hence it is not that they lose less data during a disaster than CDP.
PROBLEM 3 This program is about exception handling. Create an empty list. Use a loop to ask user to input 5 integers. In every iteration, add user input to the list if it can be converted to an integer. Otherwise, display an error message. Display the list of integers after the loop. The following is an example: Enter an integer: 24 Enter an integer: 5.6 Input value cannot be converted to integer Enter an integer: 1,000 Input value cannot be converted to integer Enter an integer: 41 Enter an integer: 8 Integer list: [24, 41, 8] Save your Python program in a file named Lab11P3.py. Submit the file to Blackboard for credit.
Answer:
see explaination
Explanation:
The program code
lst = []
for i in range(5):
n = input("Enter an integer: ")
if(n.isdecimal()):
lst.append(int(n))
else:
print("Input value cannot be converted to integer")
print("Integer list:",lst)
see attachment for output
Write a method named countMatching(). It has two parameters: a String and a character. The method returns a count of how many times the character parameter appears in the String parameter. Case matters. For example, 'A' is not the same as 'a'. You only need to write the countMatching() method and nothing else (do not modify the main() method provided below). Note, however, that your method must work for any parameters passed, not just the example below.
Answer:
Check the explanation
Explanation:
public static int countMatching(String s, char c) {
int count = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == c)
++count;
}
return count;
}
Method in a complete Java program
public class FizzBuzz {
/* sample run:
* z appears 2 time(s) in FIZZbuzz
*/
public static void main(String[] args) {
String s = "FIZZbuzz";
char c = 'z';
int count = countMatching(s, c);
System.out.printf("%c appears %d time(s) in %s%n", c, count, s);
}
// Put your countMatching() method here:
public static int countMatching(String s, char c) {
int count = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == c)
++count;
}
return count;
}
}
z appears 2 time(s) in FIZZbuzz Process finished with exit code
Geraldine's Landscaping Service and Gerard's Lawn Maintenance are merging their businesses and want to merge their customer files. Each file contains a customer number, last name, address, and property area in square feet, and each file is in customer number order. Design the logic for a program that merges the two files into one file containing all customers. Assume there are no identical customer numbers.
Final answer:
To merge the two customer files, you can use a simple algorithm that compares the customer numbers in each file and merges them accordingly.
Explanation:
To merge the two customer files, you can use a simple algorithm that compares the customer numbers in each file and merges them accordingly. Here's one possible logic for the program:
Read the first customer entry from both files.Compare the customer numbers.If the customer number from the first file is smaller, write that entry to the merged file and read the next entry from the first file.If the customer number from the second file is smaller, write that entry to the merged file and read the next entry from the second file.Repeat steps 2-4 until all entries from both files have been processed.If there are any remaining entries in the first file, write them to the merged file.If there are any remaining entries in the second file, write them to the merged file.By following this logic, you can merge the customer files into one file containing all the customers.
To merge the customer files, initialize file pointers for each file, compare customer numbers, write the smaller entry to the output file, and continue until all entries are merged. Ensure no duplicates by using unique customer numbers. Consider the general format used in geographic data management.
Merging Customer Files for Geraldine's Landscaping Service and Gerard's Lawn Maintenance
To merge the customer files of both Geraldine's Landscaping Service and Gerard's Lawn Maintenance, you need to design a program that combines the two files into one. Each file is sorted by customer number, which makes the merging process more straightforward. Here's a step-by-step explanation of the logic:
Initialize two file pointers, one for each input file.Open the output file where the merged data will be stored.Read the first entry from both input files.Compare the customer numbers of the current entries from both files.Write the entry with the smaller customer number to the output file.Advance the file pointer of the file from which the entry was written.Repeat steps 4-6 until you reach the end of one of the files.Copy the remaining entries from the other file to the output file.Close all files.This program ensures that all customers from both files are included in the merged output file without duplicates, thanks to the unique customer numbers. The same general format is applied when managing geographic data, where rows represent records and columns represent attributes.
By merging these files, businesses can geocode their customers to better understand their distribution and needs, leading to improved services.
A company is deploying smartphones for its mobile salesforce. These devices are for personal and business use but are owned by the company. Sales personnel will save new customer data via a custom application developed for the company. This application will integrate with the contact information stored in the smartphones and will populate new customer records onto it. The customer application's data is encrypted at rest, and the application's connection to the back office system is considered secure. The Chief Information Security Officer (CISO) has concerns that customer contact information may be accidentally leaked due to the limited security capabilities of the devices and the planned controls. Which of the following will be the MOST efficient security control to implement to lower this risk?
A. Implement a mobile data loss agent on the devices to prevent any user manipulation with the contact information.
B. Restrict screen capture features on the devices when using the custom application and the contact information.
C. Restrict contact information storage dataflow so it is only shared with the customer application.
D. Require complex passwords for authentication when accessing the contact information.
Answer:
A. Implement a mobile data loss agent on the devices to prevent any user manipulation with the contact information
Explanation:
Given that, the task is to provide Security controls to lower the risk
Hence, one should undertand the various purpose of troubleshooting, which are:
1. Before the security breach, preventive measures are designed to stop or avoid security breach from occurrence.
2. During the security breach, detective actions are designed to establish and characterize a security breach.
3. After the event, corrective actions are purposely designed to stop the level of any damage caused by the security breach.
Hence, in this case, the MOST efficient security control to implement to lower this risk is to implement a mobile data loss agent on the devices to prevent any user manipulation with the contact information
This is because, Mobile Data Loss Prevention (DLP) is a security function that is provided through email or data security solutions. Thus, through its policies application, to the ActiveSync agent, sensitive information can be restricted from being sent to any ActiveSync-enabled mobile device
g Select an appropriate expression to complete the following method, which is designed to return the sum of the two smallest values in the parameter array numbers. public static int sumTwoLowestElements(int[] numbers) { PriorityQueue values = new PriorityQueue<>(); for (int num: numbers) { values.add(num); } ______________________ }
Answer:
import java.util.Comparator;
import java.util.PriorityQueue;
public class PriorityQueueTest {
static class PQsort implements Comparator<Integer> {
public int compare(Integer one, Integer two) {
return two - one;
}
}
public static void main(String[] args) {
int[] ia = { 1, 10, 5, 3, 4, 7, 6, 9, 8 };
PriorityQueue<Integer> pq1 = new PriorityQueue<Integer>();
// use offer() method to add elements to the PriorityQueue pq1
for (int x : ia) {
pq1.offer(x);
}
System.out.println("pq1: " + pq1);
PQsort pqs = new PQsort();
PriorityQueue<Integer> pq2 = new PriorityQueue<Integer>(10, pqs);
// In this particular case, we can simply use Collections.reverseOrder()
// instead of self-defined comparator
for (int x : ia) {
pq2.offer(x);
}
System.out.println("pq2: " + pq2);
// print size
System.out.println("size: " + pq2.size());
// return highest priority element in the queue without removing it
System.out.println("peek: " + pq2.peek());
// print size
System.out.println("size: " + pq2.size());
// return highest priority element and removes it from the queue
System.out.println("poll: " + pq2.poll());
// print size
System.out.println("size: " + pq2.size());
System.out.print("pq2: " + pq2);
}
}
Which of the follow is the best technique to determine how many menu items are needed and how to structure the menus and sub menus.
a. Group use cases by data requirements
b. Group use cases by dependency
c. Group use cases by actor.
d. Group business functions by department
Answer:
c. Group use cases by actor.
Explanation:
A use case is used to describe interaction between systems and users to achieve a goal. Mostly, a list of possible interaction between the system and the user is identified. The user can be a single person or a group. By using use case, the requirement of a systems is identified from a users point of view.
Create a class named BaseballGame that contains data fields for two team names and scores for each team in each of nine innings. names should be an array of two strings and scores should be a two-dimensional array of type int; the first dimension indexes the team (0 or 1) and the second dimension indexes the inning. Create get and set methods for each field. The get and set methods for the scores should require a parameter that indicates which inning’s score is being assigned or retrieved. Do not allow an inning score to be set if all the previous innings have not already been set. If a user attempts to set an inning that is not yet available, issue an error message. Also include a method named display in DemoBaseballGame.java that determines the winner of the game after scores for the last inning have been entered. (For this exercise, assume that a game might end in a tie.) Create two subclasses from BaseballGame: HighSchoolBaseballGame and LittleLeagueBaseballGame. High school baseball games have seven innings, and Little League games have six innings. Ensure that scores for later innings cannot be accessed for objects of these subtypes.
Answer:
Check the explanation
Explanation:
BaseballGame:
public class BaseballGame {
protected String[] names = new String[2];
protected int[][] scores;
protected int innings;
public BaseballGame() {
innings = 9;
scores = new int[2][9];
for(int i = 0; i < 9; i++)
scores[1][i] = scores[0][i] = -1;
}
public String getName(int team) {
return names[team];
}
public void setNames(int team, String name) {
names[team] = name;
}
public int getScore(int team, int inning) throws Exception {
if(team < 0 || team >= 2)
throw new Exception("Team is ut of bounds.");
if(inning < 0 || inning >= innings)
throw new Exception("Inning is ut of bounds.");
return scores[team][inning];
}
public void setScores(int team, int inning, int score) throws Exception {
if(team < 0 || team >= 2)
throw new Exception("Team is ut of bounds.");
if(inning < 0 || inning >= innings)
throw new Exception("Inning is ut of bounds.");
if(score < 0)
throw new Exception("Score is ut of bounds.");
for(int i = 0; i < inning; i++)
if(scores[team][i] == -1)
throw new Exception("Previous scores are not set.");
scores[team][inning] = score;
}
}
HighSchoolBaseballGame:
public class HighSchoolBaseballGame extends BaseballGame {
public HighSchoolBaseballGame() {
innings = 7;
scores = new int[2][7];
for(int i = 0; i < 7; i++)
scores[1][i] = scores[0][i] = -1;
}
}
LittleLeagueBaseballGame:
public class LittleLeagueBaseballGame extends BaseballGame {
public LittleLeagueBaseballGame() {
innings = 6;
scores = new int[2][6];
for(int i = 0; i < 6; i++)
scores[1][i] = scores[0][i] = -1;
}
}
2. Now write a program named filereader.py that reads and displays the data in friends.txt. This program should also determine and print the average age of the friends on file. That will require an accumulator and a counter. Use a while loop to process the file, print the data, and modify the accumulator and counter. Then close the file and display the average age accurate to one decimal place. See the Sample Output.. SAMPLE OUTPUT My friend Denny is 24 My friend Penny is 28 My friend Lenny is 20 My friend Jenny is 24 Average age of friends is 24.0
Answer:
see explaination
Explanation:
# python code filereader.py
import sys
import readline
from sys import stdin
import random
## Open the file with read only permit
f = open('inputfile.txt')
## Read the first line
sum = 0.0
count = 0
#read file till the file is empty
while True:
line = f.readline()
if ("" == line):
print "Average age of friends is", sum/count
break
list = line.split()
print "My friend ",list[0], " is", list[1]
sum = sum + int(list[1])
count = count + 1
f.close()
'''
inputfile.txt
Denny 24
Penny 28
Lenny 20
Jenny 24
output:
My friend Denny is 24
My friend Penny is 28
My friend Lenny is 20
My friend Jenny is 24
Average age of friends is 24.0
see screenshot at attachment
Final answer:
To display data from a file and calculate the average age, write a Python program that opens 'friends.txt', uses a while loop to read lines, prints the content, adds up the ages, and then calculates and prints the average age to one decimal place.
Explanation:
To accomplish this task, you need to write a Python script named filereader.py that will open a file named friends.txt, read the content, and calculate the average age of friends listed in the file.
Additionally, the program should handle the file contents with a while loop and keep track of the total number of ages read (counter) and the sum of those ages (accumulator). After reading all ages and calculating their sum, the program will close the file and compute the average age to one decimal place.
import sys
try:
f = open('friends.txt', 'r')
age_sum = 0
age_count = 0
line = f.readline()
while line:
friend_info = line.split()
print(f'My friend {friend_info[0]} is {friend_info[1]}')
age_sum += int(friend_info[1])
age_count += 1
line = f.readline()
f.close()
average_age = age_sum / age_count
print(f'Average age of friends is {average_age:.1f}')
except FileNotFoundError:
sys.stderr.write('Error: friends.txt file does not exist.')
except Exception as e:
sys.stderr.write('An error occurred: ' + str(e))
Make sure that the file friends.txt is in the same directory as your script, or provide the correct path to the file. The logic in the code reads each line of the file, splits the line into the friend's name and age, prints out the friend's details, and calculates the average age after reading through all the lines.
In a class named InputTextToOutputFile.java use the following prompt to get the fileName of the output file from the user: "What is the name of your output file?" Once the output file is opened, write everything the user types until the input contains "STOP!" Note: Include the line containing "STOP!" as the last thing written to the file. This work must be completed in your textbook ZYBooks -- CMP-326: Programming Methods II No other forms of submission will be accepted.
Answer:
Detailed program code is written at explaination
Explanation:
Program:
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class InputTextToOutputFile
{
public static void main(String[] args) throws IOException
{
Scanner in=new Scanner(System.in);//Scanner object to get user input
System.out.println("What is the name of your output file? ");
String fileName = in.nextLine();//get output file name
File file = new File(fileName);//File object with fileName as input
//Create the file by method file.createNewFile()
if (file.createNewFile())
{
System.out.println("File is created!");
} else {
System.out.println("File already exists.");
}
//FileWriter object with user file name given as input
FileWriter writer = new FileWriter(file);
System.out.println("Enter text to write to a file : ");
String line;//variable to store line content
do {
line=in.nextLine();//get line content from user
writer.write(line+"\n"); //write content to file by adding new line(\n) character
}while(!line.equals("STOP!"));//repeat a loop until user enters "STOP!" line
writer.close();//close the file object
}
Final answer:
To solve this problem, use the Scanner class to get user input and the FileWriter and BufferedWriter classes to write to a file. Prompt the user for the output file name and write everything the user types to the file until they enter "STOP!"
Explanation:
In order to solve this problem in the class named InputTextToOutputFile.java, you can use the Scanner class to get user input. First, create a Scanner object to read user input from the console. Then, prompt the user with the message "What is the name of your output file?" and store their response in a variable called 'fileName'.
Next, you can use the FileWriter and BufferedWriter classes to create and write to a file. Open the output file using the 'fileName' variable, and create a FileWriter and BufferedWriter object to write to the file.
Now, you can use a while loop to continuously read user input and write it to the file until the input contains the string "STOP!". Inside the while loop, read the user input using the Scanner object, and use the BufferedWriter object to write the input to the file. Finally, outside of the while loop, write the string "STOP!" to the file and close the BufferedWriter object to ensure that all the data is written to the file.
Write a MATLAB script in which you initialize the following vector:
ANIMALS = ["cow", "cat", "dog", "fox", "lion", "bear", "sea lion", "deer", "dolphin"];
a. In the script, use logical indexing to create a vector called C_ANIMALS that is comprised of the animals from the above ANIMALS vector starting with the letter c. This should be done with just one line of code. HINT: MATLAB provides a built-in function that checks whether a string starts with a specified letter. Feel free to research and use this built-in function.
b. In the script, use logical indexing to create a vector called LETTERS_3 that is comprised of the animals from the above ANIMALS vector that are three letters long. This should be done with just one line of code. HINT: MATLAB provides a built-in function that checks whether a string’s length is equal to a certain number. Feel free to research and use this built-in function.
c. In the script, use logical indexing to create a vector called D_GREATER_3 that is comprised of the animals from the above ANIMALS vector that are greater than three letters long and start with the letter d. This should be done with just one line of code.
d. Display all the vectors created in this script: ANIMALS, C_ANIMALS, LETTERS_3, and D_GREATER_3.
Answer:
ANIMALS = ["cow", "cat", "dog", "fox", "lion", "bear", "sea lion", "deer", "dolphin"];
C_ANIMALS = ANIMALS(startsWith(ANIMALS,"c"));
LETTERS_3 = ANIMALS(strlength(ANIMALS)==3);
D_GREATER_3 = ANIMALS(strlength(ANIMALS)>3 & startsWith(ANIMALS,"d"));
disp(ANIMALS)
disp(C_ANIMALS)
disp(LETTERS_3)
disp(D_GREATER_3
Consider the following 3-PARTITION problem. Given integers a1; : : : ; an, we want to determine whether it is possible to partition of f1; : : : ; ng into three disjoint subsets I; J;K such that X i2I ai = X j2J aj = X k2K ak = 1 3 Xn i=1 ai For example, for input (1; 2; 3; 4; 4; 5; 8) the answer is yes, because there is the partition (1; 8), (4; 5), (2; 3; 4). On the other hand, for input (2; 2; 3; 5) the answer is no. Devise and analyze a dynamic programming algorithm for 3-PARTITION that runs in time polynomial in n and in P i ai.
Answer:
Explanation:
Find attach the solution
On computer X, a nonpipelined instruction execution would require 12 ns. A pipelined implementation uses 6 equal-length stages of 2 ns each. Assuming one million instructions execute and ignoring empty stages at the start/end, what is the speedup of the pipelined vs. non-pipelined implementation
Answer:
5.99997
Explanation:
We can refer to Pipelining as an implementation technique where multiple instructions are overlapped in execution. The computer pipeline is divided in stages. Each stage completes a part of an instruction in parallel.
It increases instruction throughput
see attachment for the step by step solution
Write a query to display the invoice number, line numbers, product SKUs, product descriptions, and brand ID for sales of sealer and top coat products of the same brand on the same invoice. Sort the results by invoice number in ascending order, first line number in ascending order, and then by second line number in descending order
Final answer:
To display the invoice number, line numbers, product SKUs, product descriptions, and brand ID for sales of sealer and top coat products of the same brand on the same invoice, you can use a SQL query with multiple joins and sorting conditions.
Explanation:
To display the invoice number, line numbers, product SKUs, product descriptions, and brand ID for sales of sealer and top coat products of the same brand on the same invoice, you can use SQL query with multiple joins and sorting conditions. Here's an example:
SELECT i.invoice_number, l1.line_number, l1.product_sku, l1.product_description, l1.brand_idThis query assumes that the tables for invoices are named 'invoices' and the tables for lines are named 'lines'. Modify the table names and column names according to your database schema.
Final answer:
The SQL query should select invoice numbers, line numbers, product SKUs, product descriptions, and brand IDs where product descriptions are 'sealer' or 'top coat' and group by invoice number and brand, ensuring there are at least two such products on the same invoice. The query should sort results as specified.
Explanation:
Writing a SQL query involves selecting specific columns from a table and applying the conditions that match the data retrieval requirements. For this scenario, we want to display invoice numbers, line numbers, product SKUs, product descriptions, and brand IDs for sales of 'sealer' and 'top coat' products of the same brand on the same invoice. Additionally, we are asked to ensure the results are sorted by invoice number in ascending order, first line number in ascending order, and then by second line number in descending order.
Here is an example of what the SQL query might look like:
SELECT InvoiceNumber, LineNumber1, LineNumber2, SKU, ProductDescription, BrandID FROM Sales WHERE (ProductDescription = 'sealer' OR ProductDescription = 'top coat') AND BrandID IS NOT NULL GROUP BY InvoiceNumber, BrandID HAVING COUNT(*) > 1 ORDER BY InvoiceNumber ASC, LineNumber1 ASC, LineNumber2 DESC;
Note that database structure is assumed, and actual table and column names may vary.
Which of the following is specified by the detailed procedures in a test plan? Question 12 options: The result of the final test of all programs How a separate operational and test environment is prepared The test data to be used Who will work with the new system and ensure that all necessary features have been included
Final answer:
A test plan typically details 'the test data to be used,' which includes sets of inputs designed to test software functionality and validate outcomes.
Explanation:
The question asks which component is specified by the detailed procedures in a test plan. Of the options provided, the one that is typically detailed in a test plan is the test data to be used. A test plan contains comprehensive information about the testing strategy, test objectives, resources needed for testing, test environment, test limitations, and the schedule of testing activities. Importantly, it specifies the test data which are sets of inputs given to a software program during testing to ascertain an expected outcome and validate the software's functionality.
You have been asked to design a high performing and highly redundant storage array with a minimum of 64 TB of usable space for files. 4 TB hard drives cost $200, 6 TB hard drives cost $250, 8 TB hard drives cost $300, and 10 TB hard drives cost $350. Explain which type of RAID you would choose and the quantity and types of drives you would use for your solution. Weigh the cost vs redundancy in your solution.
Answer:
Check the explanation
Explanation:
Number of 4 TB hard drive need = 32/4 = 8 and cost = 200*8 = $1600
Number of 6 TB hard drive need = max(32/6) = 6 and cost = 250*6 = $1500
Number of 8 TB hard drive need = 32/8 = 4 and cost = 300*4 = $1200
Number of 10 TB hard drive need = 32/10 = 4 and cost = 350*4 = $1400
Hence using 4 hard drive of 8 TB will minimize the cost.
The cost of an international call from New York to New Delhi is calculated as follows: Connection fee, $1.99; $2.00 for the first three minutes; and $0.45 for each additional minute. Write a program that prompts the user to enter the number of minutes the call lasted and outputs the amount due. Format your output with 2 decimal places c++
Answer:
#include <iostream>
using namespace std;
int main()
{
double minutes, cost = 0;
cout<<"Enter the number of minutes: ";
cin >> minutes;
if (minutes <= 3)
cost = 1.99 + (minutes * 2);
else
cost = 1.99 + (2 * 3 + (minutes - 3) *0.45);
cout <<"The cost is: " << cost <<endl;
return 0;
}
Explanation:
Declare the variables
Ask the user for the minutes
Check the minutes:
If it is less than or equal to 3, calculate the cost by summing multiplication of the minutes by 2 and 1.99
Otherwise, calculate the cost by summing the multiplication of the first 3 minutes by 2, multiplication of the remaining minutes by 0.45 and 1.99
Print the the cost
Final answer:
The program calculates the cost of an international call based on the connection fee, the rate for the first three minutes, and the rate for each additional minute, given the total call duration input by the user. It then outputs the total amount due formatted with two decimal places.
Explanation:
The question relates to creating a C++ program that calculates the total cost of an international call from New York to New Delhi. The cost includes a connection fee, a fixed cost for the first three minutes, and a variable cost for each additional minute. The C++ program must prompt the user for the duration of the call in minutes and calculate the total amount due based on the given rates. It should then display the final amount formatted to two decimal places.
Here is an outline of the program that performs this calculation:
#include
#include
using namespace std;
int main() {
const double connectionFee = 1.99;
const double firstThreeMinuteCost = 2.00;
const double additionalMinuteCost = 0.45;
int minutes;
double amountDue;
cout << "Enter the number of minutes the call lasted: ";
cin >> minutes;
if (minutes <= 3) {
amountDue = connectionFee + firstThreeMinuteCost;
} else {
amountDue = connectionFee + firstThreeMinuteCost + (minutes - 3) * additionalMinuteCost;
}
cout << fixed << setprecision(2);
cout << "The total amount due for the call is $" << amountDue << endl;
return 0;
}
The user is prompted for the total minutes of the call. The program calculates the cost considering all the constraints and displays the result with two decimal places using fixed and setprecision manipulators.