Answer:
// here is statement in C++ to compute square root of a variable.
double result=sqrt(discriminant);
Explanation:
Sqrt() method will compute the square root of a variable in C++.Read a value of discriminant and find the square root of it and assign it to variable "result".
Implementation in C++.
#include <bits/stdc++.h>
using namespace std;
// main function
int main()
{
// variables
double discriminant;
// ask to enter discriminant
cout<<"Enter the discriminant:";
// read discriminant
cin>>discriminant;
double result=sqrt(discriminant);
cout<<"Square root of discriminant is:"<<result<<endl;
return 0;
}
Output:
Enter the discriminant:50
Square root of discriminant is:7.07107
. 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.
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.
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.
The declarations and statements that compose the method definition are called the __________.
a.method body
b.method header
c.parameter list
d.method name
Answer:
a. method body.
Explanation:
A method contains the following components:
method namemethod argumentsmethod return typemethod implementation codeAll of these together constitute the method body. The method body contains the declarations and statements constituting the method definition.
Apart from this, when the method is invoked at runtime, it needs to be called with method-name and the actual parameter list which gets substituted for the formal parameters in the method body.
What is database design?
Answer: Database design is the model created of data/information for any particular organization .the relation between the information and which data is to be stored is the most important factor for designing .These parameters are decided by the designer of the database.
After the decision of the designed the data is invoked in the database .The data representation in the theoretical manner is known as ontology.The classification and relation defining is the purpose of the database design.
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..
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
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.
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
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.
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
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
A method variable a class variable with the same name. a) acquiesces to b) destroys c) overrides d) alters
Answer:
Option(c) is the correct answer for the given question.
Explanation:
The method variable overrides the class variable name with same name The method variable overrides of the class variable name .
Following are the example in java language
public class Main
{
int b=90; // class varaible or instance varaible
void sum()
{
int b=34; // method having same name as class varaible name
b=b+10;
System.out.println(b); // display b
}
public static void main(String[] args) // main method
{
Main ob=new Main(); // craete object
ob.sum(); // calling method sum
}
}
Output:
44
In this we declared a variable 'b' as int type in class and override this variable in sum() function it means same variable name is declared in function sum() .
acquiesces ,destroys,alters are the wrong for the given question.
So overrides is the correct answer
A class can inherit from a super class whose behavior is “near enough” and then adjust behavior as necessary thanks to the ability of a subclass to override a method. Thus, option C is correct.
What are the main uses of overrides as class variable?The name, number, type, and return type of the overriding method are the same as those of the method it overrides.
In the case of method overriding, the overridden methods entirely replace the inherited method.
However, in the case of variable hiding, the child class conceals the inherited variables rather than replacing them.
In a nutshell, a class variable cannot be overridden. In Java, class variables are hidden rather than overridden. For example, overriding is for methods. Overriding differs from hiding.
Therefore, overrides A method variable a class variable with the same name.
Learn more about overrides here:
https://brainly.com/question/20216755
#SPJ2
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
What is white noise and how does it affect a signal? Provide a business process example that could be affected and what would you recommend to minimize white noise?
Answer: White noise is the merging of the audible signal of different frequencies varying from high to low into a single unit. The number of frequencies combined in white noise more than 20,000. It helps in masking the other noise in the environment.
In accordance with the signal, white noise acts as a statistical mode which merges all the signal into one with same intensity which results in the power spectral density being persistent.
E.g.- Any business process of company that requires attention and speedy working such as creating report, presentation can get affected by the white noise in positive or negative manner depending on the person.It might lead to increment or decrement in the cognitive performance of employees.
White noise can be remove by several software present in the market, removing it by the "Noise removal" option from the Effects menu in operating system, etc.
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.
What is the advantage of using the conditional operator?
Answer: Conditional operator are the ternary operator that work during a particular condition in which they returns a value as a result.This mechanism of the conditional operator helps in the making of the decision. The advantages of the conditional operator are as follows:-
It has faster executionIt can operate in many conditions even where the if-else condition is not executableCompact in nature Readable
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 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.
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.
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.
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.
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.
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 .
) 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.
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.
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 .
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).
In this type of password attack, the attacker has some information about the password. For example, the attacker knows the password contains a two- or three-digit number.
hybrid
nontechnical
rule-based
precomputed hashes
Answer: Non- technical
Explanation:
Non technical attacks also known as non- electronic attack. The non technical attack does not required any type of the technical domain knowledge and methods for intruding the other systems.
In the non technical password attack, the attacker contain some data or information regarding the password like two and three digits and umber of the password. It basically search the data from the users trash bins and sticky notes from the users system.
On the other hand, all the the options are incorrect because it does not have some information and data regarding the password according to the given statement.
Therefore, non technical option is correct.