What are some of the challenges that could arise from setting up a file management system on a computer?

Print a message telling a user to press the letterToQuit key numPresses times to quit. End with newline. Ex: If letterToQuit = '

LekaFEV [45]

Answer:

#include <stdio.h>

int main(void) {

char letterToQuit = '?';

int numPresses = 0;

printf("Press the %c key %d times to quit ", letterToQuit, numPresses);

return 0;}

Explanation:

in print statement %c is replaced by value of variable 'letterToQuit'and %d is replaced by value of variable 'numPresses'

3 0

3 years ago

What are some examples and non-examples of digital security?

deff fn [24]

Answer:

Devices such as a smart card-based USB token, the SIM card in your cell phone, the secure chip in your contactless payment card or an ePassport are digital security devices

5 0

3 years ago

You are going to write a program for Computer test which will read 10 questions from a file, order them randomly and provide the

ollegr [7]

Answer:

from pprint import pprint

import random

match = {

"mcq1": "a",

"mcq2": "c",

"mcq3": "c",

"mcq4": "d",

"mcq5": "a",

"mcq6": "a",

"mcq7": "a",

"mcq8": "b",

"mcq9": "d",

"mcq10": "a"

}

file = open("test","r")

questions = set()

for i in range(10):

ques = []

for line in file:

if "-" in line:

break

else:

ques.append(line)

questions.add(tuple(ques))

def quiz(questions, match):

questions = list(questions)

marks = 0

for i in range(10):

pprint(questions[i])

mcq = "mcq",str(i+1)

mcq = list(mcq)

answer = input("enter your answer: ")

if answer == match["".join(mcq)]:

marks += 1

return marks

print("Your score is: ",quiz(questions, match))

Explanation:

the file which has been loaded is test, and its data is provided below...

mcq1. The device which converts analog signals to digtital signals and vice versa is called.

a) mother board

b) TAP

c) Modem

d) I/O device

-

mcq2. The main components of a computer system are.

a) TAP, CPU, Printer

b) CPU, Input device

c) CPU, ALU, CU

d) CPU , Output device , Memory unit, Control unit

-

mcq3. A source program is a program.

a) writter in machine laguage

b) translated in machine langaue

c) written in high level language

d) required to boot a computer

-

mcq4.Which image format supports transparency in images.

a) PNG

b) GIF

c) JPG

d) A & B

-

mcq5. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq6. UNICODE is an example of.

a) character encoding set

b) driver

c) software

d) database

-

mcq7. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq8. NTFS stand for.

a) Network File Saving

b) New Technology File System

c) Newt Trend File Saving

d) Non Technology File System

-

mcq9. FF is example of.

a) Octal number system

b) Binary Number System

c) Decimal Number System

d) Hexadecimal number system

-

mcq10. Emails are sent with the help of ?

a) SMTP

b) FTP

c) HTTP

d) UDP

-

3 0

4 years ago

Write a program that will predict the size of a population of organisms. The program should ask the user for the starting number

sineoko [7]

Answer:

// using c++ language

#include "stdafx.h";

#include <iostream>

#include<cmath>

using namespace std;

//start

int main()

{

//Declaration of variables in the program

double start_organisms;

double daily_increase;

int days;

double updated_organisms;

//The user enters the number of organisms as desired

cout << "Enter the starting number of organisms: ";

cin >> start_organisms;

//Validating input data

while (start_organisms < 2)

{

cout << "The starting number of organisms must be at least 2.\n";

cout << "Enter the starting number of organisms: ";

cin >> start_organisms;

}

//The user enters daily input, here's where we apply the 5.2% given in question

cout << "Enter the daily population increase: ";

cin>> daily_increase;

//Validating the increase

while (daily_increase < 0)

{

cout << "The average daily population increase must be a positive value.\n ";

cout << "Enter the daily population increase: ";

cin >> daily_increase;

}

//The user enters number of days

cout << "Enter the number of days: ";

cin >> days;

//Validating the number of days

while (days<1)

{

cout << "The number of days must be at least 1.\n";

cout << "Enter the number of days: ";

cin >> days;

}

//Final calculation and display of results based on formulas

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

{

updated_organisms = start_organisms + (daily_increase*start_organisms);

cout << "On day " << i + 1 << " the population size was " << round(updated_organisms)<<"."<<"\n";

start_organisms = updated_organisms;

}

system("pause");

return 0;

//end

}

Explanation:

6 0

3 years ago

Can someone give me the code for the edhesive 3.7 code practice for python? Thanks.

belka [17]

Answer:

Its me I think u might be able to know :)

Explanation:

4 0

3 years ago