Answer:
When designing a cache, you have to consider this things:
Delay. Miss rate. Area.If the cache has a bigger block size may have a lower delay, but when miss the miss rate will be costly. If an application has high spatial locality a bigger block size will do well, but programs with poor spatial locality will not because a miss rate will be high and seek time will be expensive.
Final answer:
The block size in cache design determines the amount of data stored in each cache block. It affects cache hit rate and wasted storage space. The optimal block size depends on various factors.
Explanation:
The block size in cache design refers to the amount of data that can be stored in each cache block. It plays a crucial role in determining the cache's performance and efficiency. A larger block size can lead to a lower cache miss rate and higher hit rate, as it allows for more data to be fetched from memory at once. However, a larger block size also results in more wasted storage space, known as internal fragmentation.
For example, let's consider a cache with a block size of 64 bytes. If the processor requests a single 4-byte integer, the cache will still load the entire 64-byte block into the cache. This leads to wasted space and can reduce the effective cache capacity. On the other hand, if the block size is too small, the cache may experience frequent cache misses, as it would need to load more blocks to fetch the required data.
Choosing the optimal block size involves balancing the trade-off between cache hit rate and wasted storage space. Factors like the access pattern of the application, cache associativity, and memory bandwidth also influence the effect of block size on cache performance.
Create a single line comment before you define your variables that says ""Variable Definitions"".
Answer:
// Variable Definitions
int a=67;
float b=78.8797;
Explanation:
For creating a single line comment we use // slash. It is used for making the comment in the program. In this we made a comment with help of // after that we create a two variable i.e a and b of integer and float type.
Which of the following keywords is used to remove a database table in Oracle? (Points : 2) DROP TABLE
ALTER TABLE...DROP
DELETE TABLE
TRUNCATE TABLE
Answer:
DROP TABLE
Explanation:
DROP TABLE is used to remove a database table in Oracle.
The syntax is DROP TABLE <TableName>;
For example: Suppose there is a table called Student in the database which needs to be removed. Then the administrator with the required privilege can issue with the following command:
DROP TABLE Student;
This is distinct from DELETE statement which is used to delete individual row or set of rows.
In UML behavioral modeling, a message is _____. (Points : 6) a named location in memory where information is deposited and retrieved
a data structure to hold information
a function or procedure call from one object to another object
a relationship between two objects
Answer: a function or procedure call from one object to another object
Explanation: UML(Unified Modeling language) behavioral modeling is the depiction of the relation of the elements in a dynamic manner and the dependency on time .Message in the UML behavioral modeling is a functional call taking place from one element to another.
The interaction is the model is seen through the flow of messages.Other options are incorrect because message is not information holding data structure, does not display the relation between object rather presents the flow and is not a memory location .
Convert A4B from hexadecimal to binary. Show your work.
Answer:
The answer is A4B₁₆ = 2635₁₀ = 101001001011₂
Explanation:
To convert from hexadecimal base system to binary base system, first you can do an intermediate conversion from hexadecimal to decimal using this formula:
where position of the x₁ is the rightmost digit of the number and the equivalents hexadecimal numbers to decimal:
A = 10.B = 11.C = 12.D = 13.E = 14.F = 15.A4B₁₆ = A*16²+4*16¹+B*16⁰ = 2560 + 64 + 11 = 2635₁₀
Now, you have the number transformed from hexadecimal to decimal. To convert the decimal number 2635 to binary: Divide the number repeatedly by 2, keeping track of each remainder, until we get a quotient that is equal to 0:
2635 ÷ 2 = 1317 + 1;
1317 ÷ 2 = 658 + 1;
658 ÷ 2 = 329 + 0;
329 ÷ 2 = 164 + 1;
164 ÷ 2 = 82 + 0;
82 ÷ 2 = 41 + 0;
41 ÷ 2 = 20 + 1;
20 ÷ 2 = 10 + 0;
10 ÷ 2 = 5 + 0;
5 ÷ 2 = 2 + 1;
2 ÷ 2 = 1 + 0;
1 ÷ 2 = 0 + 1;
Now, construct the integer part base 2 representation, by taking the remainders starting from the bottom of the list:
2635₁₀ = 101001001011₂
A method is a set of instructions that manipulate the data within an object (Points : 2) True
False
Answer: True
Explanation:
A method is the collection and set of the instruction that basically used to manipulate the data within the object. It basically perform specific task and we can easily reuse the given code various times without retyping the program again.
When we use methods it save lots of time as we can easily reuse the given code. Object function is known as methods where we can manipulate the data according to the needs of the programmer, when the data are define in the particular object.
Float and double variables should not be used _____. (Points : 4)
as counters
to perform mathematical calculations
as approximate representations of decimal numbers
for applications when precision is required
Answer: As approximate representations of decimal numbers
Explanation:
In the computer programming language, the float and the double variable is basically used to represent the decimal numbers. In the C language, both the float is basically represent the decimal value of precision upto the 7 digits and the double variable represent upto 16 digit of the precision.
Float is the type of the data type that is used to represent the floating point in the programming language and it takes less memory so that is why it is faster in speed.
Double variable is basically used to represent the numeric variable and decimal number in the programming language and it hold very large number as compared to float.
Write a program which asks the user to enter N numbers. The program will print out their average. Try your program with the following numbers: 20.5, 19.7, 21.3, 18.6 and 22.1
Answer:
// here is code in C++.
#include <bits/stdc++.h>
using namespace std;
// main function
int main()
{
// variables
int n;
double average,sum=0,x;
cout<<"enter the Value of N:";
// read the value of N
cin>>n;
cout<<"enter "<<n<<" Numbers:";
// read n Numbers
for(int a=0;a<n;a++)
{
cin>>x;
// calculate total sum of all numbers
sum=sum+x;
}
// calculate average
average=sum/n;
// print average
cout<<"average of "<<n<<" Numbers is: "<<average<<endl;
return 0;
}
Explanation:
Read the total number from user i.e "n".Then read "n" numbers from user with for loop and sum them all.Find there average by dividing the sum with n.And print the average.
Output:
enter the Value of N:5
enter 5 Numbers:20.5 19.7 21.3 18.6 22.1
average of 5 Numbers is: 20.44
Which database property type increases the efficiency of a search on the designated field in the physical database?
Validation rule
Validation text
Indexed
Expression
Answer: Indexed
Explanation: Indexed property in the database system is for indexing .In this process reduction of the record/disk numbers results in the increase in the optimized performance. The structure of the index is in column form.
This technique rapidly provides the data from the table containing database when every query arises or requirement is proposed. Therefore the efficiency of the database increases.
Other options are incorrect because validation rule and text are regarding the verification of the data user and text respectively and expression is defined as the group of one or more value.Thus the correct option is indexed.
Who are the users of the encryption technology?
Answer: The users of encrypted technology can range from a consumer to a professional. As an individual, you might tend to login to a social media platform. These activities mostly use encryption in order to prevent your data and information from being exposed. More general uses might include safeguarding sensitive data and information, governments protecting social security and records.
According to the ________ definition of organizations, an organization is seen as a means by which primary production factors are transformed into outputs consumed by the environment.
Select one:
a. macroeconomic
b. sociotechnical
c. microeconomic
d. behavioral
Answer: (C) Microeconomic
Explanation:
The microeconomic organization basically consist two factor of the primary production that is labor and capital by which the output is consume by environment.
It is transformed by using the firm by the process of the production into the products and the different services.
According to the microeconomic the organization is basically refers to the collection of the responsibilities and rights for balanced the time by conflict resolution in the organization.
This microeconomic definition basically suggest established a new information system and also rearrange all the technical machines in the organization
Dеclarе and allocatе mеmory (on thе hеap) for a onе-dimеnsional array of 256 doublеs namеd pricеs
Answer:
double *prices=new double [256];
Explanation:
To allocate memory on heap we use new keyword.In the above statement an array name prices is declared and the memory allocated to it is on the heap memory.
First look at double * prices.It is a pointer this pointer is created on the stack memory which holds starting address of the array present on the heap memory of size 256..
Analysts use _____ to show the objects that participate in a use case and the messages that pass between the objects over time for one particular use case. (Points : 6) structural models
sequence diagrams
communication diagrams
class diagrams
Answer:Sequence diagrams
Explanation: Sequence diagram is the diagram that displays about the connection of the objects in a sequential manner. The sequence depicted through the vertical lines in parallel form was about the object function and the horizontal line showed interaction between them for the exchange of the information.
Other options are incorrect because structural models have the infrastructure in particular format, communication diagrams depicts the exchange of information through communication and class diagram is the diagram that displays the system's class.Thus the correct option is sequence diagram.
. The _____________ is the responsibility of the CISO, and is designed to reduce incidence of accidental security breaches by organization members.
Answer: SETA program
Explanation:
The SETA program is basically stand for the security, education, training and awareness. It is basically used to reduce the accidental security which is break by the organization member such as employees, vendors and contractors.
The SETA program provided various benefits to the organization as it improve the behavior of the employees.It basically enhance the training and education program by focus and concentrate on the information security.
It can also inform he member of the organization about the report of violating many policies.
______The component of a computer that contains the ALU (Arithmetic Logic Unit) is the RAM. (T/F)
Answer: False
Explanation:
The given statement is false as, the component of the computer basically contain the arithmetic logic unit (ALU) in the central processing unit (CPU). The CPU operations are basically performed by the one and more than one arithmetic logic unit.
It is basically load the data from the input register in the computer system. The CPU basically provide various instruction and operation to the ALU so that it can perform various types of operation in the data.
The ALU stored the result in the output register of the system.
What are some of the features about Word that you find interesting?
Answer:
Some interesting features of the Microsoft word are as follow:
The main key feature of the word is that it has the ability to write the formatted text and also we can save and also print the document according to the individual requirement.
It also used the word processing system in the Microsoft word for checking the spelling and grammar mistake to make the document error free and efficient.
It is compatible with the different kinds of software for local use and for collaboration features.
Which of the four digital-to-analog conversion techniques is the most susceptible to noise? EXPLAIN WHY.
a. ASK
b. FSK
c. PSK
d. QAM
Answer:
a. ASK.
Explanation:
ASK(Amplitude Shift Keying) :- It is the form of amplitude modulation.It represents digital data variations in the carrier wave's amplitude.
It is most susceptible technique to noise because among the frequency or phase and amplitude ,amplitude is most affected by the noise as compared to frequency.
Explain why a business would use metrics to measure the success of strategic initiatives.
Answer:
Metrics is basically used to measurement various type of success initiatives in the business for determining the current status of the project. The various business leaders uses the metrics for evaluating and monitoring various types of activity for tracking their business.
As,it helps in checking whether the project meets its particular goals.It gauges something which is legitimately controllable by the people or various small groups. This recommends measurements are neighborhood, and associated with activity.
It basically measuring which is something significant. In the event that the word key methods significant, at that point measurements mirror the goals for individual or association.
Final answer:
Businesses use metrics to quantifiably track and measure the success of strategic initiatives, provide essential feedback, and drive improvement. Metrics such as sales, defects, and satisfaction levels help in aligning employees' efforts with the company's strategic goals and aid in effective decision-making.
Explanation:
Businesses use metrics to measure the success of strategic initiatives to ensure that objectives are met efficiently and effectively. Metrics provide a quantifiable method to assess performance and progress towards goals, acting as a vital feedback mechanism for employees and management alike. They are used to track various aspects such as sales, defects, efficiency, and satisfaction levels, among others. By establishing Key Performance Indicators (KPIs), companies can objectively determine how well they are performing in specific areas and where they need to improve.
Specific metrics like turnover rates or productivity are typically straightforward to quantify and can be tracked easily. They are necessary to determine Critical to Stakeholder metrics and translate customer requirements into coherent project goals. However, companies often need to quantify less tangible aspects, such as employee or customer satisfaction, to get a holistic view of their performance. Although this may require additional effort, tools like surveys can help in quantifying these 'soft targets.'
Ultimately, utilising these metrics allows all members of an organization to identify and address issues proactively, aligning their efforts with the broader strategic goals of the business, enhancing decision-making, and fostering a culture of continuous improvement.
Assume a 8x1 multiplexer’s data inputs have the following present values: i0=0, i1=0, i2=0, i3=0, i4=0, i5=1, i6=0, i7=0. What should be value of the select inputs s2, s1 and s0 for the value on the multiplexer’s output d to be 1?
s2=
s1=
s0
Answer: s2=1 s1=0 s0=1
Explanation:
Generally speaking, the multiplexer is a digital circuit , build with combinational logic, that acts like a switch, sending to the output the current value present at the input which order number (in decimal) is equal to the binary combination of the select inputs, expressed in decimal form.
If the multiplexer is 8x1, in order to be able to pass to the output any of the 8 inputs, the number of select inputs (n), must satisfy the following relationship:
M(number of inputs) = 2ⁿ
In this case, as the only input which present value is "1" ,is the input i5, the value present at the input select must be the binary combination of s₀, s₁
and s₂, that yields the decimal 5, i.e., s₀ = 1 s₁ = 0 s₂ = 1.
Create a class Book with two private int fields, numPages and currentPage. Supply a constructor that takes one parameter and sets numPages to that value and currentPage to 1. Provide accessor methods for both fields. Also provide a method nextPage that increments currentPage by 1, but only if currentPage is less than numPages.
Answer:
The code is in the explanation.
Explanation:
/*Creating the class*/
public class Book{
/*Here we put the attributes of the class;
In our case, they are the two private ints*/
private int numPages;
private int currentPage;
/*Here is the constructor.
The constructor always has the same name as the class
In (), are the parameters.*/
public Book(int numberOfPages){
numPages = numberOfPages; /*sets numPages to the value
of the parameter*/
currentPage = 1; /*sets currentPage to 1*/
}
/*An acessor method is a method with which we can get the value of a variable*/
/*Acessor method for numPages*/
/*numPages is an int, so the acessor method returns an int*/
public int getnumPages(){
return numPages;
}
/*Acessor method for currentPage*/
public int getcurrentPage(){
return currentPage;
}
/*Method next page*/
/*This method does not return anything, so it is a void method*/
public void nextPage(){
/*Verify that currentPage is less than numPages*/
if (currentPage < numPages){
currentPage = currentPage + 1;
}
}
}
The Java class Book contains private fields numPages and currentPage. Its constructor sets numPages to a given value and currentPage to 1. Accessor methods retrieve these values. The nextPage() method increments currentPage by 1 if it's less than numPages.
Here's the implementation of the Book class in Java:
```java
public class Book {
private int numPages;
private int currentPage;
public Book(int numPages) {
this.numPages = numPages;
this.currentPage = 1;
}
public int getNumPages() {
return numPages;
}
public int getCurrentPage() {
return currentPage;
}
public void nextPage() {
if (currentPage < numPages) {
currentPage++;
}
}
}
```
This Book class has two private fields: `numPages` and `currentPage`. The constructor initializes `numPages` with the given value and sets `currentPage` to 1. Accessor methods `getNumPages()` and `getCurrentPage()` return the values of the respective fields. The `nextPage()` method increments `currentPage` by 1 if it's less than `numPages`.
Create a float variable named circumference.
Answer:
Float circumference; // Create a float variable
Explanation:
The float datatype is used for storing the decimal point values .The syntax to declaring any float variable is given below.
float variable-name;
float circumference; // create a float variable
circumference=89.9007;; // store the value in circumference
Following are program in c++
#include <iostream> // header file
using namespace std; //namespace
int main() // main function
{
float circumference; // creating variable float
circumference=89.9007; // storing value
cout<<circumference; // display value circumference
return 0;
}
Output:
89.9007
Sarah finds herself repeating the same keystrokes and mouse operations on a regular basis. What should she use to improve her efficiency?: *
a. Copy and Paste
b. Indices
c. Macros
d. Redo
Answer: c)Macro
Explanation: Macro function is the computing operation that is collection or group of commands and made into a single instruction.This instruction is created so that the repeated tasks can be carried out automatically.This function helps in saving the processing time.
Other options are incorrect because copy and paste function copies the selected instruction or text and pastes it to the desired location, indices denotes the index having data collection and redo command is for undoing the function and restoring it.Thus, the correct option is option(c).
Use truth tables to show that the following pairs of expressions are logically equivalent.
(a) p ↔ q and (p → q) ∧ (q → p)
(b) ¬(p ↔ q) and ¬p ↔ q
(c) ¬p → q and p ∨ q
Answer:
I attached you a picture with the answers
Explanation:
A truth table is a tabular representation of all the combinations of values for inputs and their corresponding outputs. It is a mathematical table that shows all possible outcomes that would occur from all possible scenarios that are considered factual, hence the name. Truth tables are usually used for logic problems as in Boolean algebra and electronic circuits.
Which of the following is a correct call to a method declared as public static void i) aMethod(char code)? a. void aMethod(); b. void aMethod(‘V’); c. aMethod(char ‘M’); d. aMethod(‘Q’);
Answer:
Option(d) i.e aMethod(‘Q’); is the correct answer for the given question .
Explanation:
To call any method following syntax is used
methodname(parameter);
In option(a) the return type void is used and no char parameter is passed in the function so this option is wrong.
In option(b) the return type void is used which is not correct syntax to calling a method so this option is wrong.
In option(c) the char datatype is passed in the function which is not correct syntax to calling a method so this option is wrong.
So aMethod(‘Q’); is the correct answer .
) The order of messages on a sequence diagram goes from _____. (Points : 6)
right to left
bottom to top
left to right
top to bottom
Answer:
Top to bottom
Explanation:
A sequence diagram shows the sequence or the order in which the interaction between components takes place.
It places them in order of the occurrence of the events or interactions between the components or objects thus arranging these from top to bottom.
The sequence diagram shows the way an object in a system functions and the order it follows.
write a program that does the following: 1. Declare the string variables firstname and last name. 2. Prompt the user for first name and last name. 3. Read in the first name and last name entered by the user. 4. Print out Hello follow by users full name. These questions could be found from this book C++ without fear second edition by Brian overland
Answer:
// here is code in c++.
#include <bits/stdc++.h>
using namespace std;
// main function
int main()
{
// variable declaration
string firstname,lastname;
// ask to enter first name
cout<<"enter the first name:";
// read firs tname
cin>>firstname;
// ask last name
cout<<"enter the last name:";
// read last name
cin>>lastname;
// print the output
cout<<"hello "<<firstname<<" "<<lastname<<endl;
return 0;
}
Explanation:
Part 1, declare variables "firstname" and "lastname".Part 2, Ask user to enter first and last name.Part 3, read the value of first and last name and assign to variables "firstname" and "lastname" respectively.Part 4, Print "hello" followed by first name and last name.
Output:
enter the first name:robert
enter the last name:doweny
hello robert doweny
Convert (675.6)8 to hexadecimal. (use base 2 instead of base 10 as the intermediate base for conversion).
Answer:
1BD.C
Explanation:
Keep in mind that octal number has 3 binary fields where the right field is the number 1, the center field is the number 2 and the left field is the number 4. you need that your 3 fields sum the final octal digit.
For example :
(1)8 = (001)2(2)8 = (010)2(3)8 = (011)2The hexadecimal number has 4 binary fields where the right field is the number 1, the center field is the number 2 , the next center field is the number 4 and the left field is the number 8. you need that your 4 fields sum the final hexadecimal digit.
For example:
(F)16 = (1111)2(1)16 = (0001)2(6)16 = (0110)2Step 1: Split your octal number in digits and convert to binary form
6 7 5 . 6
110 111 101 . 110
Step 2: Join your binary number and split in groups of 4 elements from the point (Important note: If you miss some element to complete the groups at the left of the point complete with zero's at the left, else if you miss some element to complete the groups at the right of the point complete with zero's at the right)
binary complete: 110111101.110
binary in groups of 4:
1 1011 1101 . 110
Complete the groups with zero's (Remember the important note):
0001 1011 1101 . 1100
Step 3: Calculate the hexadecimal number
1 B D . C
Explain the benefits a recursive algorithm can provide. Use an example from a process in your organization or with which you are familiar.
Explanation:
Recursion is when the function calls itself inside it's definition.The advantages of recursion are as following:-
The problems solved by recursion have small code and elegant as compared to it's iterative solution which will be big and ugly to look at.Recursion is best suitable for data structures such as trees it's solution more understandable and easy while it's iterative solution is very big and also a bit difficult.#include<iostream>
using namespace std;
int factorial( int n1)
{
if (n1 == 0)
return 1;
return n1 * factorial(n1 - 1);
}
int main()
{
int no ;
cin>>no;
cout<<factorial(no)<<endl;
return 0;
}
Recursive function to find the factorial of a number.
When a block exists within another block, the blocks are a) structured b) nested c) sheltered d) illegal
In programming, when a block exists within another block, it is described as nested. Nesting is a common and logical structure used to organize code.
When a block exists within another block, the blocks are b) nested. In the context of computer science, especially in programming, nesting refers to having one set of instructions inside another set.
This is a common structure in many programming languages where, for example, you can have a conditional statement inside a loop, or one function defined within another. Nesting helps in organizing code logically and can make the code easier to read and maintain.
. When would one use the analytic application fraud detection?
Answer:Fraud detection through analytical method is used for detection of the fraud transactions,bribe activity etc in companies, business,etc. This techniques helps in the reduction of financial frauds in the organization, have the control over company to protect it,decrease in the fraud associated costs etc.
It has the capability of identifying the fraud which has happened or going to happen through the analytical ways and human interference. The organizations or companies require efficient processing and detection system for identification of such false happening.
Briefly tell me what a PUT request does
Answer:
The PUT request is the method by which it basically stored the entity that is provided the URI request to the server. The PUT request method basically demands that the encased substance be put away under the provided Request-URI.
As a rule the HTTP PUT strategy replaces the asset at the present URL with the asset contained inside the solicitation. PUT is utilized to both make and update the condition of an asset on the server.
The HTTP PUT strategy makes another asset or replaces a portrayal of the objective asset with the other request payload.