MCQ: A computer network is interconnection of two or more:

Write a program that grades arithmetic quizzes as follows: Ask the user how many questions are in the quiz. Ask the user to ente

kirill115 [55]

Answer:

The program in C++ is as follows:

#include <iostream>

using namespace std;

int main(){

int questions, answer;

cout<<"Questions: ";

cin>>questions;

int answerkey[questions];

cout<<"Enter answer keys: ";

for(int i = 0; i< questions; i++){

cin>>answerkey[i]; }

int correct = 0;

cout<<"Enter answers: ";

for(int i = 0; i< questions; i++){

cin>>answer;

if(answer == answerkey[i]){

correct++; } }

cout<<"Correct answers: "<<correct<<endl;

cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";

return 0;

}

Explanation:

This declares the number of questions and the answers submitted to each equation

int questions, answer;

Prompt to get the number of questions

cout<<"Questions: ";

This gets input for the number of questions

cin>>questions;

This declares the answerkey as an array

int answerkey[questions];

Prompt to get the answer key

cout<<"Enter answer keys: ";

This iteration gets the answer key for each question

for(int i = 0; i< questions; i++){

cin>>answerkey[i]; }

This initializes the number of correct answers to 0

int correct = 0;

Prompt to get the enter the answers

cout<<"Enter answers: ";

This iterates through the answer keys

for(int i = 0; i< questions; i++){

This gets the answer to each question

cin>>answer;

This compares the answer to the answer key of the question

if(answer == answerkey[i]){

If they are the same, correct is incremented by 1

correct++; } }

Print the number of correct answers

cout<<"Correct answers: "<<correct<<endl;

Print the percentage of correct answers

cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";

7 0

3 years ago

Which system provides an easier way for people to communicate with a computer than a graphical user interface (GUI)

Marta_Voda [28]

Answer: natural Language Processing

Explanation:

Natural Language Processing: It is a sub field of linguistics which is concerned with the interactions between Human and computer especially how to program computers to process and to understand large amounts of natural language data.

6 0

3 years ago

Write the class "Tests". Ensure that it stores a student’s first name, last name, all five test scores, the average of those 5 t

zhannawk [14.2K]

Answer:

The following assumption will be made for this assignment;

If average score is greater than 75, the letter grade is A

If average score is between 66 and 75, the letter grade is B

If average score is between 56 and 65, the letter grade is C

If average score is between 46 and 55, the letter grade is D
If average score is between 40 and 45, the letter grade is E
If average score is lesser than 40, the letter grade is F

The program is written in Java and it uses comments to explain difficult lines. The program is as follows

import java.util.*;

public class Tests

{

public static void main(String [] args)

{

//Declare variables

Scanner input = new Scanner(System.in);

String firstname, lastname;

//Prompt user for name

System.out.print("Enter Lastname: ");

lastname = input.next();

System.out.print("Enter Firstname: ");

firstname = input.next();

char grade;

//Declare Array

int[] Scores = new int[5];

//Initialize total scores to 0

int total = 0;

//Decalare Average

double average;

//Prompt user for scores

for(int i =0;i<5;i++)

{

System.out.print("Enter Score "+(i+1)+": ");

Scores[i] = input.nextInt();

//Calculate Total Scores

total+=Scores[i];

}

//Calculate Average

average = total/5.0;

//Get Letter Grade

if(average>75)

{

grade = 'A';

}

else if(average>65)

{

grade = 'B';

}

else if(average>55)

{

grade = 'C';

}

else if(average>45)

{

grade = 'D';

}

else if(average>40)

{

grade = 'E';

}

else

{

grade = 'F';

}

//Print Student Results

System.out.print("Fullname: "+lastname+", "+firstname);

System.out.print('\n');

System.out.print("Total Scores: "+total);

System.out.print('\n');

System.out.print("Average Scores: "+average);

System.out.print('\n');

System.out.print("Grade: "+grade);

}

See Attachment for .java file

Download java

7 0

3 years ago

2) The CPU is made from a silicon a) Steel b) Chip c) pendrive

almond37 [142]

Answer:

Address buses are made up of a collection of wires connecting the CPU with main memory that is used to identify particular locations (addresses) in main memory. The width of the address bus (that is, the number of wires) determines how many unique memory locations can be addressed.

Explanation:

6 0

3 years ago

Suppose a system administrator at sls happened to read the details of this case. what steps should he or she take to improve the

kvv77 [185]

He should add more security applications to the software and inform the company to not tell any details.

6 0

3 years ago