The true or false questions.
The command: egrep -l 'cis' * will show the name of all files in the current directory where the name contains the word 'cis'

Answer:

I/O port is an input output port of a computer which is capable of receiving (input) and sending (output) data. The main function of a I/O port is to send and receive data. As it is used to transfer data. Device such as keyboards is an input device and printer is an output device.  

For example - Modem is an input output port and device where we can connect it with the computer is called I/O port.

Answer:

b. size

Explanation:

We can use the size() method of java.util.ArrayList to determine the size of an  ArrayList in Java. The size() method of the ArrayList class returns an integer which is equal to the number of elements present in the ArrayList.

Below is an example code to illustrate the use of the size() method of the ArrayList:-

     ArrayList<Integer> aList = new ArrayList<Integer>(5);

      aList.add(25);

     aList.add(2);

     aList.add(5);

     aList.add(22);

     System.out.println("Size of the array list: " + aList.size());

This will print the size of the array list as 4 since we've added four numbers into the array list.

Answer:

Time and Money

Explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

A time-shared system has its benefits compared to a PC or single-user workstation. Firstly, if more than one person is working on the same project it can save time instead of finishing a part on a single-user workstation and having to move, upload and download constant information.

Secondly, and most importantly is probably the amount of money or investment needed for for more than one workstation. Having a time-shared system saves a huge amount of money for a company especially if the company is tight on a budget.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

Answer:

The correct option is C) a variable production cost incurred after split off.

Explanation:

First of all it is important to understand what sell or process further decision is , this is a situation where a company has to decide whether they should sell their product right now or they should make some further changes in to it , which can help them earn more revenue.

Company's make such decisions by doing an incremental analysis where they see whether the additional revenues they think product will generate when it would be further processed will be more than the additional cost they would have to incurred in further processing the product.

So at this point only variable production cost which they would have to incurred would matter not the fixed cost because of the incremental revenue and cost are the only significant factors here for decision making.

Answer:

TRUE

Explanation:

The Intel 8259 is a device designed for 8085 and 8086 intel microprocessor.

The Intel 8259 Interrupt Controller (PIC) accept the requests from the  I/O devices and check whether the requests is of the higher priority than the ongoing request serviced by CPU. Interrupt is issued to the CPU based on priorities,if the request is of higher priority than ongoing service then Interrupt will be issued the ongoing service will pause and the new request will be processed. If new request has less priority then no interrupt will be issued, New request will wait for CPU to free.      

Answer: d)- Show benefits to receiver

Explanation: Indirect plan is the approaching a person in a indirect manner and just giving the hint about the main idea rather than presenting the main idea. For creating interest section the idea of attracting the receiver by showing the benefits of the plan is the major option. Because just by sharing the benefit and hint of plan,receiver tends to be attracted towards the plan .

Answer:

true

Explanation:

FUNCTION: functions are the collection of statements which are used in C programming any program that can not be run without a function, anyone can divide their code in different functions. A function declare  the compiler about the name of the function , a function definition provides the actual body of the function so from above discussion it is clear that the function should be given names that reflects their purpose

Answer:

one

Explanation:

The loop is used to execute the part of code or statement again and again until the condition is not FALSE.

There are three types of loop in programming.

1. for loop

2.while loop

3. do-while loop

Do-while has one special property which makes it different from other loops.

The loop statement executes once if the condition of the loop is failed in the starting.

In do-while, the statement executes first and then while checking the condition.

let discuss the code:

initially, laps=50, myNum=1

then, the program executes the statement in the loop.

so, myNum = 1 + 2=3.

A value 3 is assign to the variable myNum.

laps = 50 + 1=51.

A value 3 is assigned to the laps variable.

then while checking the condition (51 <= 1) which is FALSE.

The program terminates the loop.

Therefore, the answer is one.

Answer:

#include <iostream>

#include <math.h>

using namespace std;

int to_the_power_of(int first, int second){

   int result = pow(first, second);

   return result;

}

int main()

{

   int side;

  cout<<"Enter the side of cube: ";

  cin>>side;

  int volume = to_the_power_of(side, 3);

  cout<<"The volume is "<<volume<<endl;

  return 0;

}

Explanation:

include the library iostream and math.h for using the input/output instruction and pow() function.

create the main function and declare the variable.

then, print the message for asking to enter the value from user.

the enter value is then store in the variable using cin instruction.

then, call the function with two parameters. program control move to the define function and  calculate the first parameter raised to the power of the second parameter.

then return the result to the main function and finally print the result.

Answer: B) Vertical Partitioning

Explanation:

As, vertical partitioning is performed on Relation X, it is used for dividing the relation X vertically in columns and it involves creation of tables and columns. They also use some additional tables to store left out columns. We cannot partition the column without perform any modification of value of the column. It only relies on keeping the particular attributes of relation X.

The question is about writing a Java while loop to double a number without exceeding 100, relevant to Computers and Technology in a high school context. The loop prints each doubled value followed by a space and stops before the number reaches 100, after which it prints a new line.

The subject of the question is related to Computers and Technology, particularly focusing on programming and the use of while loops in Java. A while loop is used to repeatedly execute a block of code as long as a specified condition is true. In the context of the student's question, the goal is to use a while loop to double a positive integer without exceeding a certain threshold (in this case, 100).

To solve the problem, we need to set up a while loop that continues to operate as long as the doubled value of numInsects is less than 100. Here is the code snippet that accomplishes this:

This loop starts by checking if the current value of numInsects is less than 100. If it is, the value is printed followed by a space, and then numInsects is doubled. The process repeats until the condition is no longer true (i.e., numInsects is 100 or more), at which point a newline is printed to conclude the output.

Answer:

A

Explanation:

An “evil twin” in the context of computer security is a virus-laden attachment that looks just like a sincere attachment. Hence option a is correct.

Computer security is defined as the defense of computer systems and data against damage, theft, and improper use. The same techniques used to safeguard other valuable or sensitive equipment, such as serial numbers, doors and locks, and alarms, are often employed to protect computer hardware.

A rogue Wi-Fi access point (AP) that poses as a genuine one and provides access to sensitive data without the end user's knowledge is known as a "evil twin assault." With a smartphone or other internet-capable gadget, some readily available software, and an attacker, it is simple to construct an evil twin.

Thus, an “evil twin” in the context of computer security is a virus-laden attachment that looks just like a sincere attachment. Hence option a is correct.  

To learn more about computer security, refer to the link below:

https://brainly.com/question/5042768

#SPJ5

Answer:

false

Explanation:

Answer: There are different types of topologies are: 1) Bus topology, 2)Star topology, 3)Ring topology  

Explanation:  The physical layout in which the network connection are made is known as topology.

Types of topologies are explained as:

1) Bus topology-

2) Star topology-

3) Ring topology-

Answer:

bits per second (bps)

Explanation:

The definition of the bandwidth is capacity of the medium to transfer maximum amount of data transfer from one point to the another point in a specific time usually one second.

It generally measured as bits per second (bps).

For advance or high capacity medium is measure as gigabits per second (Gbps).

Answer:

These all are constructors.

CONS

(CONS A B)

makes a pair like this:   (A . B)  

In other words, A is the CAR of the pair; B is the CDR of the pair.

For  example:

(CONS 4 5) ==> (4 . 5)

(CONS 4 '(5 6)) ==> (4 5 6)

[The pair (4 . (5 6)) is the same thing as (4 5 6)].

APPEND  

(APPEND A B)

makes a new list by replacing the final nil in A with the list B. A and  

B must be proper lists.

For example:

(APPEND '(4) '(5 6)) ==> (4 5 6)

This takes any amount of number and put in this order

LIST  

In this ,it will return a list whose elements are value of arguments in the order as it appeared in the LIST.It can take any amount of parameters

For example,

(LIST 4) ==> (4)

(LIST 4 5) ==> (4 5)

(LIST 4 5 '(6 7)) ==> (4 5 (6 7))

(LIST (+ 5 6)(* 5 6)) ==> (8 9)

Answer:

Queue- It is a data structure,unlike stacks we can insert and delete elements from both sides.

It works on the principle FiFo(first in first out) i.e the element which is inserted at the starting will be the one for deleting.  

We can perform many operations on queue like enqueue(),dequeue() and many more.

Queue Operations

enqueue()-This operation is used to add elements in Queue,we add element to rear.

         Example-

           Queue.prototype.enqueue = insertval(5)

               {  

                  this.array.push(5);  //inserting elements to a queue

                }  

dequeue()-This operation is used to remove elements from Queue,while removing data from front.  

Example-

           Queue. prototype. dequeue = removalval(5)

           {  

             this.array.pop(5);  //removing elements from a queue

           }

peek()-This operation is used to get the element from front i.e first element.

   Example-  

                      int peek()

                          {

                             return queue[front];

                          }

isfull()-This operation is used to check whether the queue is full or not.

 Example-

         bool isfull()

                 {

                 if(rear == MAXSIZE - 1) //checking queue is full

                     return true;

                 else

                      return false;

               }

isempty()-This operation is used to check whether the queue is empty or not.

  Example

 bool isempty()

     {

    if(front < 0 || front > rear)  //checking queue is empty or not

        return true;

   else

        return false;

     }

The task involves writing multiple if statements to classify car safety features based on the car's year. The conditions must be evaluated in ascending order to print out the correct safety features associated with each time period.

When writing multiple if statements in a programming context to classify the safety features of a car based on its year, you would structure your code similar to this:

if car_year \<= 1969:
   print("Few safety features.\n")
elif car_year \< 1990:
   print("Probably has seat belts.\n")
elif car_year \< 2000:
   print("Probably has antilock brakes.\n")
else:
   print("Probably has airbags.\n")

This series of if statements evaluates the variable car_year and prints a message related to the safety features that the car is likely to have, depending on its manufacture year. It's important to place the conditions in ascending order by year, so the correct message is printed as soon as its condition is met.

Answer:

True

Explanation:

Analog model

It is a representation of target model,it include charts,models of electric and mechanical system and graphs also.The size of this model is not fixed it may vary according to the requirements,so it may be small or big.

As per question,the graph is representing net income of an organization, it also representing a model(target) for the company that's why we can call it an Analog model.

Answer:

a.  

CFG for {[tex]a^{n}[/tex][tex]b^{m}[/tex], m=n-1 and n=1,2,3… …}

Here we can have a string containing only a single a and no b.

For that the production rule is S → aT, T → ε

Now  to get the strings with at least one b, the production rule is to be

T → ATB/ ε

A → a

B → b

Now merging two set of production rules:

S → aT

T → ATB/ε    [As T → ε is in both set, so one occurrence is taken]

A → a

B → b

Now let us generate “aaabb”

S → aT → a ATB → aAATBB → aaATBB → aaaTBB → aaaεBB → aaaεbB →aaaεbb → aaabb

b.  

CFG for {[tex]a^{n}[/tex][tex]b^{2n}[/tex], n=1,2,3… …}

Here for every single a, we have to generate two b’s.

So the production rule is to be:

                          S → aSbb/ε

Each time S will generate two b’s for one a.

Answer:

public class array{

    public static void main(String []args){

       int[] array = {2,4,7,1,9};

       int num_vals = array.length;

       for(int i=0;i<num_vals;i++){

           System.out.println(array[i] + " ");

       }

       for(int i=num_vals-1;i>=0;i--){

           System.out.println(array[i] + " ");

       }

    }

}

Explanation:

First create the class in the java programming.

Then create the main function and declare the array with values.

Store the size of array in num_vals variable by using the function array.length.

create a for loop to iterate the each element in the array and then print on the screen with spaces and newline.

it traverse the loop from first to last.

Then, again create the for loop to iterate the each element in the array and then print on the screen with spaces and newline but the traversing start from last to first.

Answer:

False

Explanation:

Hi, the OSI model is not that it is more popular than TCP/IP, but the OSI model was originally created as an academic contribution where it helped to build TCP/IP where a more simplified and tailored way was found of being able to implement the Internet. In summary, the OSI model served as an inspiration to execute a more versatile model such as TCP/IP in its implementation.

I hope it's help you.

Answer:

name(argument_1, argument_2, argument_3,.......);

Explanation:

The function is a block of the statement which performs the special task.

Syntax for calling the function:

name(argument_1, argument_2, argument_3,.......);

we write the name of the function and passed the arguments.

we can pass any number of arguments with separator ',' in the function calling.

for example:

1. print(name, value, count, a, b);

2. print(name, value);

Here, name, value, count,a and b are the arguments of the function.

if we does not pass any argument, the function still valid in the programming.

we can pass from Null to any number of argument.

Final answer:

To use multiple arguments in a method, separate them with a comma within the method's parentheses. This approach enables methods to perform more dynamic and flexible operations with variable inputs. An example includes a method to add two numbers, defined with two arguments, which are supplied in the same order when the method is called.

Explanation:

Using multiple arguments in a method allows for more dynamic and flexible code, enabling the method to perform tasks with variable inputs. In programming, a method can be understood as a set of instructions that performs a particular task. Arguments are inputs you give to a method so that it can perform its task with specific data. To use multiple arguments, you simply separate them with a comma within the parentheses of a method call.

For example, if you have a method designed to add two numbers, you might define it as follows: add(int num1, int num2). Here, num1 and num2 are the arguments. When calling this method, you would provide two numbers as arguments like add(5, 7), instructing the method to add 5 and 7.

In more complex scenarios, such as in object-oriented programming, methods might require multiple arguments of different types, such as strings, integers, or even objects. This variety allows developers to construct highly customizable and efficient code. For instance, a method for creating a user profile might require several arguments such as name, age, and email address: createUserProfile(String name, int age, String email).

When designing methods that accept multiple arguments, it’s important to consider the order of arguments, as they must be supplied in the same order when the method is called. Additionally, leveraging method overloading - defining multiple methods with the same name but different parameters - increases flexibility and readability in how methods can be used with varying arguments.

Answer: killall[process_name]  or kill[PID]

Explanation:

Killall is a tool for disabling running processes on the system. It will disable all programs that matches the name mentioned.

kill disables processes based on process id numbers. it does not disable the process directly. The process recieves a signal where the process will follow instructions which it has to follow if it receives the signal.

Answer: the correct answer is c. unifying type .

Explanation:

The unifying type is the type to which all operands in an expression are converted so that they are compatible with each other.

Answer:

Carry flag

Explanation:

INC instruction

This Instruction is used to increment the destination operand(register or a memory location) by 1,while maintaining the state of the carry flag CF.

DEC instruction

This instruction is used to decrement the destination operand(register or a memory location) by 1,while maintaining the state of the carry flag CF.

Initially we use Inc and Dec instructions for the loop,many loops include multi precision arithmetic doing.For controlling the loops we use inc and dec instructions by setting the zero flag,but not effecting the carry flag.For multi precision arithmetic operations we use the carry state because it helps in a way that it reduces the complexity of code( without writing tons of code),so it is necessary to preserve carry flag.  

Answer:

#include <iostream>

using namespace std;

int main()

{

   string str;

   cout<<"Enter the string: ";

   cin>>str;

   for(int i=0;str[i]!='\0';i++){

       if(str[i]=='e'){

           str[i]='x';

       }

   }

   cout<<"the string is: "<<str<<endl;

  return 0;

}

Explanation:

First, include the library iostream for using the input/output instructions.

Create the main function and declare the variables.

Then, use the cout instruction and print the message on the screen.

cin store the string enter by the user into a variable.

After that, take a for loop and if-else statement for checking the condition if the string contains the 'e', then change that alphabet to 'x'.

This process continues until the string not empty.

Finally, print the updated string.

Answer:

Software requirement specification

Explanation:

requirement specification is the first step before proceeding with any project.

we should validate our output at all phases with software requirement specification