Answer:
keylogger.
Explanation:
A keylogger can be defined as a software program or hardware device designed for monitoring and recording the keystrokes entered by an end user through the keyboard of a computer system or mobile device.
Basically, a keylogger can be installed as a software application or plugged into the USB port of a computer system, so as to illegally keep a record of all the inputs or keys pressed on a keyboard by an end user.
In order to prevent cyber hackers from gaining access to your keystrokes, you should install an anti-malware software application such as Avira, McAfee, Avast, Bitdefender, Kaspersky, etc.
An antivirus utility is a software application or program that's used to scan, detect, remove and prevent computer viruses such as Malware, Trojan horses, keyloggers, botnets, adwares etc.
In conclusion, a bot can use a keylogger to capture keystrokes on the infected machine to retrieve sensitive information.
Write a program that produces the following output:CCCCCCCCC CC CC CC CC CCCCCCCCC Note: The letter C in the output must be uppercas
Answer:
CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC ++++++++++++++ +++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++
Note: The letter C in the output must be uppercase.
#include <iostream>
using namespace std;
int main()
{
cout<<"CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC +++++++++++++\n";
cout<<"+++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++";
return 0;
}
Write an algorithm to find the sum of the following series:
a) 1+x+x^2+x^3+...+x^20
b) 1-x+x^2-x^3+...+x^20
c) 1+x/2+(x²)/3+(x^3)/4+...+(x^20)/21
Answer:
The algorithm is as follows:
Input x
sum_a = 0
sum_b = 0
sum_c = 0
for i = 0 to 20
sum_a = sum_a + x^i
sum_b = sum_b + (-x)^i
sum_c = sum_c + x^i/(i+1)
print sum_a, sum_b, sum_c
Explanation:
Required
An algorithm to solve (a), (b) and (c)
For Series (a):
This series is a geometric progression and the common ratio is x
i.e.
[tex]r = x/1 = x^2/x = ...... = x^{n+1}/x^n =x[/tex]
So, the sum of the series is:
Sum = Previous Sums + x^i --- where i is between 0 and 20 (inclusive)
For Series (b):
This series is a geometric progression and the common ratio is -x
i.e.
[tex]r = -x/1 = -x^2/x = ...... = -(x^{n+1}/x^n) = -x[/tex]
So, the sum of the series is:
Sum = Previous Sums + (-x^i) --- where i is between 0 and 20 (inclusive)
For Series (c):
This series is a neither arithmetic nor geometric progression.
It obeys the following rule:
[tex]\frac{x^i}{1+i}[/tex] --- where i is between 0 and 20 (inclusive)
So, the sum of the series is:
Sum = Previous Sums + [tex]\frac{x^i}{1+i}[/tex]
Write a c program that asks the user
to enter distance in KM and Petrol Price in Rs.
Program should compute estimated budget for
the travel distance (Assume your car covers 100
KM in 8 Liters of fuel). Program should run in a
loop and ask the user “Do you want to
continue?”. If user enters ‘y’ or ‘Y’ program
should repeat otherwise terminate.
Answer:
#include <stdio.h>
int main()
{
int x;
float y;
printf("Input total distance in km: ");
scanf("%d",&x);
printf("Input total fuel spent in liters: ");
scanf("%f", &y);
printf("Average consumption (km/lt) %.3f ",x/y);
printf("\n");
return 0;
}
Define a class named Payment that contains an instance variable of type double that stores the amount of the payment and appropriate get and set methods. Also, create a method named paymentDetails that outputs an English sentence to describe the payment amount. Next, define a class named CashPayment that is derived from Payment. This class should redefine the paymentDetails method to indicate that the payment is in cash. Include appropriate constructor(s). Define a class named CreditCardPayment that is derived from Payment. This class should contain instance variables for the name on the card, expiration date, and credit card number. Include appropriate constructor(s). Finally, redefine the paymentDetails method to include all credit card information. Define a class named PaymentTest class that contains the main() method that creates two CashPayment and two CreditCardPayment objects with different values and calls paymentDetails for each. (5 pts)
Answer:
The code is given below:
class Payment
{
private double amount;
public Payment( )
{
amount = 0;
}
public Payment(double amount)
{
this.amount = amount;
}
public void setPayment(double amount)
{
this.amount = amount;
}
public double getPayment( )
{
return amount;
}
public void paymentDetails( )
{
System.out.println("The payment amount is " + amount);
}
}
class CashPayment extends Payment
{
public CashPayment( )
{
super( );
}
public CashPayment(double amt)
{
super(amt);
}
public void paymentDetails( )
{
System.out.println("The cash payment amount is "+ getPayment( ));
}
}
class CreditCardPayment extends Payment
{
private String name;
private String expiration;
private String creditcard;
public CreditCardPayment()
{
super( );
name = " ";
expiration = " ";
creditcard = "";
}
public CreditCardPayment(double amt, String name, String expiration, String creditcard)
{
super(amt);
this.name = name;
this.expiration = expiration;
this.creditcard = creditcard;
}
public void paymentDetails( )
{
System.out.println("The credit card payment amount is " + getPayment( ));
System.out.println("The name on the card is: " + name);
System.out.println("The expiration date is: " + expiration);
System.out.println("The credit card number is: " + creditcard);
}
}
class Question1Payment
{
public static void main(String[ ] args)
{
CashPayment cash1 = new CashPayment(50.5), cash2 = new CashPayment(20.45);
CreditCardPayment credit1 = new CreditCardPayment(10.5, "Fred", "10/5/2010",
"123456789");
CreditCardPayment credit2 = new CreditCardPayment(100, "Barney", "11/15/2009",
"987654321");
System.out.println("Cash 1 details:");
cash1.paymentDetails( );
System.out.println( );
System.out.println("Cash 2 details:");
cash2.paymentDetails( );
System.out.println( );
System.out.println("Credit 1 details:");
credit1.paymentDetails( );
System.out.println( );
System.out.println("Credit 2 details:");
credit2.paymentDetails( );
System.out.println( );
}
}
Output:
Explain the purpose of the open() and close() operations.
Answer:
The open() operation notifies the system that the named file is about to become active. The close() operation notifies the system that the named file is no longer in active use by the user who issued the close operation.
What is the easiest way to deploy a C++ program to a user’s computer? a. Copy the source code to the user’s computer and then compile it b. Create a batch file that copies the program to the user’s computer and then run it c. Copy the executable file to the user’s computer d. Create an installer program and then run it on the user’s computer
Answer:
c. Copy the executable file to the user’s computer
Explanation:
When you run a c++ program, an executable file (.exe) is created in the same directory with the source file.
To deploy this program on another system, you need to transfer the executable file from the original system where the program was executed to the new system.
The program will work fine without errors.
However, do not mistake the executable file for the source file. The source file ends in .cpp.
how did hitles rules in nazi germany exemplify totiltarian rule?
Answer:
hope this helps if not srry
what are the services offered by web-based email?
Answer:
Web based email is a service that allows to access and use electronic mail via web browser.
It allows clients to login into the email software running on a web server to compose, send and receive, delete mails basically.
if you want to present slides to fellow students or co workers, which productivity software should you use
Answer:
Power point is a good software to use for slides
Research via the internet and find an article in the news regarding wireless hacking, hardware hacking, or other security breach. As security and IT changed so rapidly, your article should be no older than 2007 (i.e. Less than 5 years old). Summarize the article using at least 500 words.
Hi, I provided some explanation of key terms.
Explanation:
Wireless hacking: basically the term refers to any unethical activity carried over a radio wave-connected network (eg Internet or Wifi connection) that would provide unauthorized access to information.
Hardware hacking: On the other hand, hardware hacking involves resetting physical hardware with the objective of using it in a way not originally intended by the manufacturer.
How to create a network of relevant prospects?
Answer:
By connecting with industry-specific and relevant prospects.
Now with 760 million+ people, how can you find the most relevant people to connect with? The answer is: With the help of LinkedIn automation tools.
There are a number of best LinkedIn automation tools that come with advanced search filters to help you refine your target audience. These LinkedIn automation tools have special operators that help users find and reach even the most difficult leads.
However, there is a drawback. These LinkedIn automation tools can cause spam if you send thousands of connection requests or messages in a short time.
Moreover, if you send templated connect notes or messages, you’re likely to get a very low or almost zero acceptance and response rate.
different types of computer and state the major difference between them
Answer:
computers system may be classified according to their size.
four types of computers are;
microcomputers / personal computers- micro computers are also called personal computers which is PC this computer came in different shapes size and colors. a personal computers are designed to be used by one person at a time.some examples of the computer are;
laptopdesktopa palmtopa work station2. mini computers- mini computers are sometimes called mid-range computers which are more powerful than microcomputers and can support a number of users performing different tasks, they were originally developed to perform specific tasks such as engineering calculations.
3. Mainframe computers- Mainframe computers are larger systems that can handle numberous users, store large amounts of data and process transaction at a high rate. these computers are expensive and powerful.
4. super computers- super computers are the most largest, fastest and most powerful computer. this systems are able to process hundreds of million of instructions per second they are used for job requiring and long complex calculation.
Draw AND, OR, XOR and XNOR gates with truth table and logic gates.
.
Answer:
see picture. let me know if you have questions.
Which one of the following does not contain information?
1) A weather report
2) A time table
3) A price list displayed in a supermarket
4) An unlabeled chart
Answer:
4
Explanation:
4 is the ans as weather;timtable and price list display information
Consider an Erlang loss system. The average processing time is 3 minutes. The average inter-arrival time is 3 minutes. The number of servers is 3. What is r (sometimes referred to as the offered load)
Answer:
r = 1
Explanation:
Average processing time ( p ) = 3 minutes
Average inter-arrival time ( a ) = 3 minutes
number of servers ( m ) = 3
Determine the value of r
r ( offered load ) = p/a
= 3 / 3 = 1
∴ value of r ( offered load ) = 1
Create a function, return type: char parameters: int *, int * Inside the function, ask for two integers. Set the user responses to the int * parameters. Prompt the user for a character. Get their response as a single character and return that from the function. In main Define three variables and call your function. Print values of your variables
Answer and Explanation:
In C programming language:
char fun(int*a, int*b){
printf("enter two integers: ");
scanf("%d%d",a,b);
int e;
printf("please enter a character: ");
e=getchar();
return e;
}
int main(int argc, char *argv[]) {
int d;
int f;
int g;
fun();
printf("%d%d%d", d, f, g);
}
We have declared a function fun type char above and called it in main. Note how he use the getchar function in c which reads the next available character(after the user inputs with printf()) and returns it as an integer. We then return the variable e holding the integer value as char fun() return value.
A technology company starts a program dedicated to training high school students in the use of the latest computer programming languages. How can the company justify creating and funding such a program since it is not about its primary products
Answer:
The answer is "Spending the money can improve the company's reputation and attract new personnel with the necessary abilities".
Explanation:
In many cases, companies engage in activities tangential to their principal service or brand. As more than just a result, the purpose is to boost the company's reputation and at the same time raising societal awareness.
To strengthen its very own business reputation and to create future employees by teaching necessary skills, a technology organization may be established throughout the given case.
Every one of these initiatives helps to boost the brand's reputation & image, as well as the customer's confidence.
111+ 11- 1
1111+1111
1101 +1101
1010-11
Answer: 121, 2222, 2202, 999
Explanation:
Answer:
a. 121
b. 2222
c. 2202
c. 999
Which statement is trueBlockchain is often associated with Bitcoin and the financial services industry. However, it is applicable to almost every industry. The term Multi-party Systems better describes how the blockchain system is used.
What is a benefit of a Multi-party System? about blockchain?
Blockchain is sometimes refers to original Bitcoin blockchain.
Answer :
Blockchain is defined as the database system which maintains and also records the data in various ways which allows the multiple organizations.
Blockchain and multiparty systems specializes in the supply chain or digital identity and also financial services.
A multi-party system prevents leadership of the single party from the controlling a single legislative chamber without any challenge.
Learn more :
https://brainly.in/question/43683479
What is the advantages and disadvantages of hardware devices and software devices ?
Urgent need for assignment due today 12 o’clock!
Answer:
Advantages of hardware:
Physical existence
Multitasking
Speedy
Disadvantages:
Costly as different equipment cost differently
Time consuming
requires space
Privacy issues
Explanation:
Advantages of Software:
Less costly
Improved privacy controls
Requires no space
Disadvantages:
Does not have physical existence
hacking and cyber attacks may steal important information
Regular updates required
There are two circular grounds Ground-A and Ground-B. Ground-A is having diameter of 15 meters and Ground-B is having diameter of 20 meters. Mohsin is running in Ground-A and Neetesh is running in Ground-B. Write a program in C++ that asks the user to input the time taken, in seconds, to complete one compete round of the ground by both the friends and displays who is running faster.
Answer:
A
Explanation:
b/c the round of 'A' is less than ruond of'B'
Write an application that throws and catches an ArithmeticException when you attempt to take the square root of a negative value. Prompt the user for an input value and try the Math.sqrt() method on it. The application either displays the square root or catches the thrown Exception and displays an appropriate message.
Answer:
Sample output:
Enter the number: 25
The square root of 25 is: 5
Enter the number: -25
The square root of 25 is: Nan
Explanation:
Here the code is given as follows,
Write programming code in C++ for school-based grading system. The program should accept the Subject and the number of students from a user and store their details in an array of type Student (class). The student class should have: • studName, indexNo, remarks as variables of type string, marks as integer, and grade as char. • A void function called getData which is used to get students’ details (index number, name, and marks). • A void function called calculate which will work on the marks entered for a student and give the corresponding grade and remarks as give below. Marks Grade Remarks 70 – 100 A Excellent 60 – 69 B Very Good 50 – 59 C Pass 0 – 49 F Fail • Should be able to display the results for all students (index number, name, marks, grade, remarks). 2. Draw a flowchart for the calculate function above. 3. Create a folder with name format ICTJ254_indexnumber (eg
Answer:
Explanation:
// C++ Program to Find Grade of Student
// -------codescracker.com-------
#include<iostream>
using namespace std;
int main()
{
int i;
float mark, sum=0, avg;
cout<<"Enter Marks obtained in 5 Subjects: ";
for(i=0; i<5; i++)
{
cin>>mark;
sum = sum+mark;
}
avg = sum/5;
cout<<"\nGrade = ";
if(avg>=91 && avg<=100)
cout<<"A1";
else if(avg>=81 && avg<91)
cout<<"A2";
else if(avg>=71 && avg<81)
cout<<"B1";
else if(avg>=61 && avg<71)
cout<<"B2";
else if(avg>=51 && avg<61)
cout<<"C1";
else if(avg>=41 && avg<51)
cout<<"C2";
else if(avg>=33 && avg<41)
cout<<"D";
else if(avg>=21 && avg<33)
cout<<"E1";
else if(avg>=0 && avg<21)
cout<<"E2";
else
cout<<"Invalid!";
cout<<endl;
return 0;
}
Write a program that takes a date as input and outputs the date's season. The input is an integer to represent the month and an integer to represent the day. Ex: If the input is: 4 11 the output is: spring In addition, check if both integers are valid (an actual month and day). Ex: If the input is: 14 65 the output is: invalid The dates for each season are: spring: March 20 - June 20 summer: June 21 - September 21 autumn: September 22 - December 20 winter: December 21 - March 19
Answer:
Explanation:
The following program is written in Java. It is a function that takes in the two parameters, combines them as a String, turns the combined String back into an integer, and uses a series of IF statements to check the parameters and determine which season it belongs to. Then it prints the season to the screen. The code has been tested with the example provided in the question and the output can be seen in the attached image below.
class Brainly {
public static void main(String[] args) {
getSeason(4, 65);
getSeason(4, 11);
}
public static void getSeason(int month, int day) {
String combined = String.valueOf(month) + String.valueOf(day);
int combinedInt = Integer.parseInt(combined);
if ((month > 0 && month < 12) && (day > 0 && day < 31)) {
if ((combinedInt >= 320) && (combinedInt <= 620)) {
System.out.println("The Season is Spring");
} else if ((combinedInt >= 621) && (combinedInt <= 921)) {
System.out.println("The Season is Summer");
} else if ((combinedInt >= 922) && (combinedInt <= 1220)) {
System.out.println("The season is Autumn");
} else {
System.out.println("The Season is Winter");
}
} else {
System.out.println("Invalid date");
}
}
}
Write a C program that will load entries from a file containing details of books and prints them.
Program Requirements:
a. Load file containing details of books
b. Print out all the books Required approach:
1. Design a struct/class that can hold the details of an individual book.
2. Dynamically allocate an array of these objects. The size should be the number of book entries from the input file given by the user.
3. Load all of the book entries into this array of objects before printing
Answer:
........
Explanation:
Write a program that creates an an array large enough to hold 200 test scores between 55 and 99. Use a Random Number to populate the array.Then do the following:1) Sort scores in ascending order.2) List your scores in rows of ten(10) values.3) Calculate the Mean for the distribution.4) Calculate the Variance for the distribution.5) Calculate the Median for the distribution.
Answer:
Explanation:
The following code is written in Python. It uses the numpy import to calculate all of the necessary values as requested in the question and the random import to generate random test scores. Once the array is populated using a for loop with random integers, the array is sorted and the Mean, Variance, and Median are calculated. Finally The sorted array is printed along with all the calculations. The program has been tested and the output can be seen below.
from random import randint
import numpy as np
test_scores = []
for x in range(200):
test_scores.append(randint(55, 99))
sorted_test_scores = sorted(test_scores)
count = 0
print("Scores in Rows of 10: ", end="\n")
for score in sorted_test_scores:
if count < 10:
print(str(score), end= " ")
count += 1
else:
print('\n' + str(score), end= " ")
count = 1
mean = np.mean(sorted_test_scores)
variance = np.var(sorted_test_scores, dtype = np.float64)
median = np.median(sorted_test_scores)
print("\n")
print("Mean: " + str(mean), end="\n")
print("Variance: " + str(variance), end="\n")
print("Median: " + str(median), end="\n")
Write a recursive function named is_decreasing that takes as its parameter a list of numbers. It should return True if the elements of the list are strictly decreasing (each element in the array is strictly less than the previous one), but return False otherwise.
Answer:
c
Explanation:
Compare and contrast traditional and cloud data backup methods. Assignment Requirements You are an experienced employee of the DigiFirm Investigation Company. Chris, your team leader, explains that your biggest client, Major Corporation, is evaluating how they back up their data. Chris needs you to write a report that compares traditional backup methods to those provided by a cloud service provider, including the security of cloud services versus traditional forms of on-site and off-site backup. For this assignment: 1. Research both traditional and cloud data backup methods. 2. Write a paper that compares the two. Make sure that you include the security of cloud services versus traditional forms of on-site and off-site backup. Required Resources Course textbook Internet Submission Requirements Format: Microsoft Word Font: Arial, size 12, double-space Citation Style: Follow your school's preferred style guide Length: 1-2 pages If-Assessment Checklist I researched both traditional and cloud data backup methods. I wrote a report that compares the two. I included the security of cloud services versus traditional forms of on-site and off-site backup. I organized the information appropriately and clearly. . I created a professional, well-developed report with proper documentation, grammar, spelling, and nunctuation
Answer:
Ensures all database elements are known and secured through inventory and security protocols. Catalogs databases, backups, users, and accesses as well as checks permissioning, data sovereignty, encryption, and security rules.
Security Risk Scoring
Proprietary Risk Assessment relays the security posture of an organization's databases at-a-glance through risk scores.
Operational Security
Discovers and mitigates internal and external threats in real time through Database Activity Monitoring plus alerting and reporting. Identifies and tracks behavior while looking for anomalous activity internally and externally.
Database Activity Monitoring
Monitors 1 to 1,000+ databases simultaneously, synthesizing internal and external activity into a unified console.
Only by covering both of these areas can organizations have defense in depth and effectively control risk.
I think you have been doing a great job but you haven’t been signing many people up for our new service feature I want you to set a goal of signing up 25% of your new customers for our new service feature if I get 96 new customers that means I have to get how many of them to sign up
Answer:
24 customers
Explanation:
Given
[tex]Customers = 96[/tex]
[tex]p = 25\%[/tex] --- proportion to sign up
Required
The number of customers to sign up
This is calculated as:
[tex]n = p * Customers[/tex]
So, we have:
[tex]n = 25\% * 96[/tex]
[tex]n = 24[/tex]
1. Open the start file EX2019-ChallengeYourself-9-3. The file will be renamed automatically to include your name. Change the project file name if directed to do so by your instructor, and save it.
2. If the workbook opens in Protected View, click the Enable Editing button in the Message Bar at the top of the workbook so you can modify the workbook.
3. Use Consolidate to create a summary of real estate sales for all property types. Place the consolidated data on the Summary worksheet in cells B3: C15. Use the Average function to consolidate the data from cells B2: C14 in the Condo, Townhouse, and Single Family worksheets. Include links to the source data.
4. Import individual sales data from the tab-delimited text file Select Sales Data 2019-2020. Import the data as a table in cell A1 of the Select Sales worksheet.
5. Remove the data connection when the import is complete.
6. In the Select Sales worksheet, add data validation to restrict values in the House Type columns (cells B2: B139) to the values in the cell range named PropertyTypes. Include a drop-down list of values in the cells to assist in data correction.
7. Add the following input message to cells B2:B139: Select a property type from the list.
8. Add the following error alert to cells B2:B139: Not a valid property type.
9. Apply data validation circles to any values that violate the data validation rules you just created.
10. Add a comment to cell B1 in the Select Sales worksheet that reads: This needs to be fixed.
11. Add a hyperlink from cell B1 in the Select Sales worksheet to link to the named range (defined name) PropertyTypes. Test the link.
12. Use Flash Fill to add a new column of data to the Select Sales worksheet to display the number of bedrooms/the number of bathrooms.
a. In the Select Sales worksheet, cell F1, type the heading: BR/BA
b. Complete the column of data using this pattern in cell F2: 1 BR/1 BA
You will need to enter at least two samples in order for Flash Fill to suggest the correct autofill data. Check your work carefully.
Sales Summary 2019-2020
Number of Sales Average Selling Price
1
2
3 One BR, One BA
4 One BR, Two BA +
5 Two BR, One BA
6 Two BR, Two BA
7 Two BR, Two BA +
8 Three BR, One BA
9 Three BR, Two BA
10 Three BR, Three BA +
11 Four BR, One BA
12 Four BR, Two BA
13 Four BR, Three BA+
14 Five BR-. One BA
15 Five BR+ Two BA+
16
17
18
19
20
21
22
23
24
Answer:
Omg what is this
soooo long questionn
i am fainted
what rubbish you written how long the question is of which subject
what's your name
