How can encryption be used to ensure message integrity?

Answer:

d) all of the above.

Explanation:

Flash Memory is a memory storage that is non volatile.It can be erased electrically and reprogrammed since it is a type of ROM(Read Only Memory).It is the least expensive form of semiconductor memory.It offers lower power consumption and can be erased in large blocks.

Hence the answer to this question is option d.

Answer:

  Wi-Fi(Wireless fidelity) is the networking technology that helps in providing the internet connectivity to the users. The Wi-Fi is all around the surrounding due to several Wi-Fi connections the users demand and use. It creates the networking environment where internet access becomes easy.

There are drawback to Wi-Fi service range that covers a large area is the high number of users.The addition of many users slow down the data rate and accessing .The radiation from this service is also a negative side of the Wi-Fi pervasiveness.

Final answer:

The downsides to the pervasiveness of Wi-Fi include the digital divide, security risks, and the psychological impact of being constantly connected. To mitigate these issues, digital literacy, cybersecurity, and healthy digital habits are crucial.

Explanation:

Wi-Fi's pervasiveness indeed comes with downsides alongside the immense benefits it provides in terms of connectivity and access to information. One major concern is the digital divide, a gap that is widening between those who have access to technology and those who do not, both locally and globally. This phenomenon can lead to disparities in access to information and inequalities in educational and economic opportunities.

Another significant concern is security risks. With Wi-Fi networks, there is the potential for eavesdropping and unauthorized access to communications, raising issues of privacy and data protection. As we further integrate Wi-Fi and other wireless technologies into critical infrastructure and personal devices, the risk for systemic failures and technological vulnerabilities increases, which could have severe consequences in the event of natural disasters or targeted attacks.

Answer:

public: virtual void print()=0;

Explanation:

An abstract class contains a pure virtual function. Pure virtual class cannot be instantiated but it can be subclassed and the subclass can provide an implementation of the function.

A virtual function declaration in the class is preceded by the virtual keyword. For example, virtual void print();

A pure virtual function declaration is followed by '=0;'

public: virtual void print()=0;

Answer: Reports

Explanation:

 Some companies always ask to the employees to create the particular report for the session with their clients.

As, the report is the main communication channel between the company employees and clients where all the information are complied together and focus for transmitting the data clearly.

Efficient reports are basically help in the decision making and problem with sufficient knowledge.  

On the other hand, all the other options are not needed for session with the clients in the organization. Therefore, report is the correct option.

Answer: The difference between the UML state diagram and state transition diagram are as follow:-

Answer:

// here is code in c++ to find the approx value of "e".

#include <bits/stdc++.h>

using namespace std;

// function to find factorial of a number

double fact(int n){

double f =1.0;

// if n=0 then return 1

if(n==0)

return 1;

for(int a=1;a<=n;++a)

       f = f *a;

// return the factorial of number

return f;

}

// driver function

int main()

{

// variable

int n;

double sum=0;

cout<<"enter n:";

// read the value of n

cin>>n;

// Calculate the sum of the series

  for (int x = 0; x <= n; x++)

  {

     sum += 1.0/fact(x);

  }

  // print the approx value of "e"

    cout<<"Approx Value of e is: "<<sum<<endl;

return 0;

}

Explanation:

Read the value of "n" from user. Declare and initialize variable "sum" to store the sum of series.Create a function to Calculate the factorial of a given number. Calculate the sum of all the term of the series 1+1/1!+1/2!.....+1/n!.This will be the approx value of "e".

Output:

enter n:12

Approx Value of e is: 2.71828

Euler's number, e, can be approximated using a series expansion. The provided C program calculates e by summing the series up to 1/n! where n is entered by the user.

Euler's number, e, is a mathematical constant approximately equal to 2.71828. It can be computed using the series expansion:

Below is a C program that approximates e by computing the sum up to 1/n! where n is an integer entered by the user.

Answer:

False.

Explanation:

In C programming language the file which containing the code that we are writing the code is have the file extension .c and for c++ it is .cpp.  C programming language is a general purpose procedural computer programming language.

.g file extension is for data chart file format used by APPLAUSE database development software.

Hence the answer to this question is false.

Answer:

O(NlogN)

Explanation:

The time complexity of quick sort in worst case is O(N²) but the average case time complexity of quick sort is O(NLogN).The efficiency of quick sort totally depends upon the pivot.If the pivot is the smallest or the largest element in the array every time then the time complexity of quick sort algorithm will come out to be O(N²).

Answer: True

Explanation:

 Yes, the given statement is true that the standard are basically used when the organization are selected for the solution to fulfilling the particular policy goals. In the organization are standard are basically require for the software and hardware solutions to control the security risk.

Adopting standard in the organization it provide many advantages like it helps to save money and productivity of the organization or company.

Standard are basically establish a common throughput in the organization which provide all the department in the organization on the same level.

Answer: (A) Only unique

Explanation:

 Enumeration basically contain only unique value as enumeration is define as the set of the numeric values that is finite and it is represent specifically by the identifiers which is known as the enumeration constant.  

It only work with the finite values and also hide all the un-relevant and unnecessary information from the programmers. Enumeration is the type of the data type variable which contain only previous declared values.  

Answer:

In object oriented programming methodology, the attention is that capture the main structure and conduct of data frameworks into little modules that joins the two information and procedure.

The main principle of Object Oriented Design (OOD) is that it helps in improve the quality and efficiency of framework analysis and configuration by make the system more progressively usable.

The software Programming testing is a significant period of the product advancement cycle of the life. Testing is the way toward executing the main structure of the program with the help of main objective and also discovering mistakes.

In today world the situation of the object oriented ideas are utilized all through programming designing. Testing of item arranged programming is unique in relation to testing with the traditional programming.

Answer: Instance

Explanation: Instantiation is the creation of the instance for any particular object in the field of object-oriented programming concept. The previously defined objects are realized in a program.This object that gets created in the class is provided with the name and placed in the memory.

They have their certain methods, process and properties on which they access.Other options are incorrect because instantiate object does not gets created from the link, object or prototype.Thus, the correct option is instance.

Answer: There are several methods that are used for maintenance of safety and defensing the network against any type of hacking or attacking.Some of the methods are mentioned as follows:-

Answer:

 The evaluation of the network is basically depend upon the various factors such as the stage, type and size of the network development. The main purpose for the evaluation of the network is that the system works with high efficiency without any interruption in the network.

According to the size and the type of the network we can easily evaluate the particular network in the system and then we can easily work on the network infrastructure to make the network more efficient.

Answer:

True.

Explanation:

Sometimes there comes a problem in computer systems of continuous reboots of a windows this could due to following reasons such as software issues,bad power supply,bad hard drive,hardware issues.

If the issue is from startup and recovery configuration or software you can see it by going in the Control Panel System applet given in the question.

Answer: True

Explanation:

  Yes, the given statement is true that the left uncaught, the throwing exceptions caused stop execution or terminate the program. The uncaught exception is basically refers that the compiler control the termination function in the program.  

Left Uncaught exception basically cause termination of the program and also implement the interface in the uncaught exception handler in the particular java thread.

Answer:

Following are the program in c++

if(score>= 90)

 // check if score 90 or higher

{

comments = "Excellent"; // initialize comments to excellent

}

else if(score<90 && score >= 80)

// check if  when score is between 80 and 89

{

comments = "Good";   //initialize comments to good

}

else

//when score is less than 80.

{

comments = "Try Harder"; //initialize comments to try harder

}

Explanation:

Following are the program in c++ language

#include<iostream> // header file

using namespace std;  // namespace

int main() // main function

{

string comments; // variable

int score;  // variable declaration

cout<<" enter score ";

cin>>score;

if(score>= 90)

{

comments = "Excellent"; // initialize comments to execellent

}

else if(score<90 && score >= 80)

{

comments = "Good";   //initialize comments to good

}

else

{

comments = "Try Harder"; //initialize comments to try harder

}

cout<<comments;

return(0);

}

Output:

enter score

45

Try Harder

In this we check the condition  

if score>= 90 then it store the Excellent in variable  comments of type string

if(score<90 && score >= 80)

it store the Good in variable comments of type string.

otherwise it store harder in variable comments of type string.

Answer:

r=5.

Explanation:

Since we know we can convert a a number with any base to base ten(10) by multiplying the corresponding powers of the base.Stating form the LSB(Least Significant Bit) and with the power 0 and the power will increase by 1 as we move to MSB(Most Significant Bit).

[tex]4*r^1+1*r^0 = 21[/tex]

[tex]4r = 21 -1[/tex]

[tex]4r=20[/tex]

[tex]r=5[/tex]

Answer:

The correct answer is c. Organizational goals change over time.

Explanation:

Develop a long-term IT strategy is an important goal to provide planning and solutions to an organization but it is important to reexamine the IT strategy on a regular basis to do corrections on this strategy because organizational goals change over time.

Answer: Steve Jobs made several contributions towards technology by introducing the range of Apple devices and technologies .he started the Apple Incorporation.The technologies introduced by his company are as follows:-

 Bill Gates is the founder of Microsoft incorporation and made a lot of development in that field to create various software for the operating system.the creation of "Microsoft Window" was started by him and some other contributions are as follows:

Answer:

Steve jobs also made the Macintosh

Explanation:

Answer: True

Explanation:

Social engineering, in regards to information security, it is referred to as the cognitive manipulation of an individual into divulging confidential data and information. This also tends to differs from social engineering within discipline and domain of social sciences, which usually does not concern with the divulging of confidential data and information.

Answer: FALSE

Explanation:

Answer:

d. 1990s

Explanation:

The World Wide Web is a kind of friendly information system that uses hypertext, and since its creation has made Internet available for most people.

The Internet already existed quite before the World Wide Web: the first computer network was ARPANET (created in 1969), a project of the Advanced Research Projects Agency of the United States Department of Defense.

Further developments in computers' protocols (ways in which computers communicate with each other) resulted in a network of networks, or the Internet, in 1983.

Although the World Wide Web was a proposal first published on March 12, 1989, by Tim Berners-Lee of the European Nuclear Research Center (CERN) --this is why it is considered that the World Wide Web was created in 1989-- the idea came into life at the end of the year 1990, for the following reasons:

Well, by the end of December 1990, in a NeXT computer, and after the creation of the first web server and the first web page browser, the first web site, running at CERN, appeared on December 20, 1990.

This idea was rapidly adopted outside the CERN in 1991 and, by the end of the 1990s, more than 130 million people could access the Internet using the World Wide Web technology.

In conclusion, the World Wide Web went live in the decade of 1990s: was a project, a proposal by the end of 1989 and started to work as a fast-adopted technology at the beginning, and throughout, the 1990s.

Answer:

b

Explanation:

Explanation:

Age = 23.

To convert a base 10 number to hexadecimal number we have to repeatedly divide the decimal number by 16 until  it becomes zero and store the remainder in the reverse direction of obtaining them.

23/16=1 remainder = 5

1/16=0 remainder = 1

Now writing the remainders in reverse direction that is 15.

My age in hexadecimal number is (15)₁₆.

Answer:

 URI is the uniform resource identifier and it is basically a sequence of the character which identify the physical and logical resources. The uniform resource identifier basically contain the predefined set of rules and syntax and also maintain the extensibility hierarchical schema.

There are basically two types of URI that are:

  1)  Uniform Resource Name (URN)

  2) Uniform Resource Locator (URL)

For example: HTTP protocol , file transfer protocol (FTP).

Answer:

#include <iostream>

using namespace std;

int main() {

   srand(time(0));

   for(int i=0;i<5;i++)

   {

      double f = (double)rand() / RAND_MAX;//generating random numbers.

       double a= 5.0 + f * (15.0 - 5.0);//random numbers in range provided.

       cout<<a<<" ";

   }

return 0;

}

Explanation:

The above program generate five random numbers in the range 5.0 to 15.0.The function rand() is used to generate random numbers.First we have to call srand(time(0)) otherwise the rand() function will generate same random numbers over and over every time.

Answer:

False.

Explanation:

When we declare a variable as reference type we have to initialize that variable otherwise the compiler will give error that the reference variable is not initialized.You also cannot initialize the variable Foo& with NULL value because it is a reference variable and we have to initialize it.

On the other there is no need to initialize the variable Foo * since it is a pointer it can also store NULL value.

So the answer is only Foo* can store NULL value not Foo &.

Answer: A database management system tends to support administration, development, and use of the platforms. A Relation Database Management System (RDBMS) is referred to as a type of Database Management System (DBMS) that consists of a structure(row-based table) that tends to connect data elements and also involve functions that are supposed to maintain accuracy, security, consistency and integrity of the data.

Answer:

// here is code in c++.

#include <bits/stdc++.h>

using namespace std;

// main function

int main() {

// variables to read birth month and year

int birthMonth,birthYear;

cout<<"Enter the birth month:";

// read the birth month

cin>>birthMonth;

cout<<"Enter the birth Year:";

// read the birth year

cin>>birthYear;

// print the output

cout<<birthMonth<<"-"<<birthYear<<endl;

return 0;

}

Explanation:

Declare two variables "birthMonth" and "birthYear". Read the value of birthMonth and birthYear from user. Then print the birth month and birth year and a dash(-) in between them.

Output:

Enter the birth month:1                                                                                                                                      

Enter the birth Year:2000                                                                                                                                    

1-2000  

Enter the birth month:5                                                                                                                                      

Enter the birth Year:1950                                                                                                                                    

5-1950

The program is an illustration of a sequential program, and it does not require loops, iterations or conditions.

The programming statements in C++, where comments are used to explain each line is as follows:

//This gets input for birthMonth

cin>>birthMonth;

//This gets input for birthYear

   cin>>birthYear;

// This prints the month, a dash, and the year

   cout<<birthMonth<<"-"<<birthYear;

Read more about similar programs at:

https://brainly.com/question/15187402

Answer:

 The three key charactertics of the operating system process is that:

Answer:

// import package

import java.util.*;

// class definition

class Salary

{

   // method to calculate weekly salary

   public static double fun(int p_rate,int r_hour,int o_hour)

   {

       // calculate weekly salary

       double w_salary=(p_rate*r_hour)+(o_hour*p_rate*1.5);

       // return salary

       return w_salary;

   }

   // main method of the class

public static void main (String[] args) throws java.lang.Exception

{

   try{

    // object to read value from user

    Scanner scr=new Scanner(System.in);

       System.out.print("enter hourly pay rate: ");

       // read hourly pay rate

       int p_rate=scr.nextInt();

       System.out.print("enter regular hours: ");

       //read regular hours

       int r_hour=scr.nextInt();

       System.out.print("enter overtime hours : ");

       // read overtime hours

       int o_hour=scr.nextInt();

       // call the method

       System.out.println("weekly salary of an employee :"+fun(p_rate,r_hour,o_hour));

   }catch(Exception ex){

       return;}

}

}

Explanation:

Read hourly pay rate, regular hours and overtime hours from user.Call the method sal() with these parameters.There weekly salary is calculated by multiply regular hours with p_rate and overtime hours with 1.5 time of p_rate.Sum both of them, this will be the weekly salary.return this to main method and print it.

Output:

enter hourly pay rate: 50                                                                                                  

enter regular hours: 35                                                                                                    

enter overtime hours : 15                                                                                                  

weekly salary of an employee :2875.0

The `Salary` application prompts the user for hourly pay rate, regular hours, and overtime hours, then calculates and displays the weekly salary using a separate method to calculate overtime pay.

Here's the Java program `Salary.java` that calculates and displays the weekly salary for an employee:

import java.util.Scanner;

public class Salary {

   public static void main(String[] args) {

       Scanner scanner = new Scanner(System.in);

       // Prompt the user for input

       System.out.print("Enter hourly pay rate: ");

       double hourlyPayRate = scanner.nextDouble();

       System.out.print("Enter regular hours: ");

       double regularHours = scanner.nextDouble();

       System.out.print("Enter overtime hours: ");

       double overtimeHours = scanner.nextDouble();

       // Calculate and display the weekly salary

       double weeklySalary = calculateWeeklySalary(hourlyPayRate, regularHours, overtimeHours);

       System.out.println("Weekly salary: $" + weeklySalary);

       scanner.close();

   }

   // Method to calculate overtime pay

   public static double calculateWeeklySalary(double hourlyPayRate, double regularHours, double overtimeHours) {

       double regularPay = regularHours * hourlyPayRate;

       double overtimePay = overtimeHours * hourlyPayRate * 1.5;

       return regularPay + overtimePay;

   }

}

Explanation:

You can compile and run this program to calculate and display the weekly salary for an employee based on the provided hourly pay rate, regular hours, and overtime hours.