You use ____ operators to perform calculations with values in your programs.

a.
arithmetic

b.
calculation

c.
integer

d.
precedence

Answer:

We need to have binary numbers because that is how computers process data.

Explanation:

Answer: B. You must type a username to continue.

Explanation: "you must type a username to continue" is the most suitable error message of all the options given because it is the appropriate way and user-friendly approach to the user for correcting the error as compared to other options which consist of inappropriate words ,slang language or lengthy message which is not easily understood by the user.

Answer: C) encapsulation

Explanation:

 As, encapsulation is the process by which the data is included from the protocol of the upper layer into lower layer of the protocol in the computer networking. Basically, in the networking it is the method of abstraction, as it allowed different functions by adding different layer. In encapsulation, the IP encapsulated packet are sent over the data link layers protocol for example ethernet.

Answer:

list1.size()

Explanation:

In order to find the number of elements in a List , we can use the size() method defined in the java.util.List interface.

This method returns an integer which corresponds to the number of elements in the list.

The usage syntax example is as follows:

int num = list1.size();

If the list referenced by list1 contains 6 elements, then this method will return the value 6.

Answer:

The complete procedure for creating Excel Sheet:

Answer:

has no body.

Explanation:

An abstract method is a method which has no body.

It is contained in a class which is marked as abstract.

The implementation of such method is specified in a subclass.

For example:

//abstract class

abstract class myClass{

  /* Abstract method */  

  public abstract void mymethod(int a, int b);

}

//Concrete class extending abstract class

class Concrete extends myClass{

  public void mymethod(int a, int b){

return a+b;

  }

}

Answer:

The length of the ladder should be 277.85 meters long

Explanation:

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

I have created an illustration and attached it as a photo below to better help you understand the situation. As seen on the illustration the difference in height of Building B from Building A is,

[tex]350m-210m = 140m[/tex]

Now that we have the difference we need to find the length of the ladder which is the hypotenuse between the two buildings. We can calculate this by using the Pythagorean theorem which is the following

[tex]h^{2} = a^{2} +b^{2}[/tex]

Now we can plug in the values and solve for the hypotenuse (h)

[tex]h^{2} = 240^{2} +140^{2}[/tex]

[tex]h^{2} = 57,600 +19,600[/tex]

[tex]h^{2} = 77,200[/tex] ... square root of 77,200

[tex]h = 277.85m[/tex] .... rounded up

Therefore, the length of the ladder should be 277.85 meters long

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

Answer:

The # marker is used to mark a line comment in python.

Explanation:

The line that starts with # is a comment.Python will ignore the lines that starts with #.These comments can be used to add extra information in the python code.

For example:-

Following is the python code with comments.

names=['sam','optimus','bumblebee'] #names is the list of transformers characters.

for i in names:

     print(i)  #printing the names.

There are 2 comments in the python code written above.These are ignored by python.

Answer:

Direct access storage device.

Explanation:

DASD stands for direct access storage device.

Answer:

Web page

Explanation:

A Web page represents content formatted in HyperText Markup Language ( HTML). Web Browsers like internet explorer,firefox or google chrome can interpret this content and display the page as specified in the markup. If we access any webpage on the browser and view its source we can see the HTML content underlying the webpage.

Answer:

Java provide all the ADTs you need,therefore you do not need to create any newones.

This statement is not true.

Explanation:

ADTs are those data types which we use but we didn't know their inner working that is how it is working what is happening inside.It is commonly used for Data Structures for example:- In stack we use push and pop operations to insert and to delete element from a stack respectively but we didn't know how it is happening inside.How the stack is implemented and etc.Java provides most of the ADT's but not all.

The statement that is wrong as regards abstract data types in this question is C: Java provides all the ADTs you need, therefore you do not need to create any new ones.

Examples of ADT are;

Therefore, option C is correct.

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Answer:

Answer is A. SRAM

Explanation:

Memory cache is called static RAM.

Answer:

False

Explanation:

In a while loop we can increment the counter by any number that we wish. It is not that the counter can only be incremented by one each time through the loop.

Below is an example of a while loop with counter incremented by 5 each time.

int count=0;    //initialize count to 0

while(count<50){    //continue the loop till count is lesser than 50

  cout<<count;   //display the value of count

  count = count + 5;    //increment counter by 5 each time

}

Final answer:

The statement is false; a while loop can increment a counter by any amount based on the code within the loop's body.

Explanation:

The statement that a while loop is limited because the counter can only be incremented by one each time through the loop is false. In programming, a while loop can be used to increment or alter a counter variable by any amount, as dictated by the statements within the loop's body. The control of a while loop is based on a condition, and as long as the condition remains true, the loop will continue to execute.

For example:

int counter = 0;
while (counter < 10) {
   counter += 2; // Increment counter by 2
}

In this example, the counter variable starts at 0 and increases by 2 on each iteration of the loop. You can increment the counter by any number, or even apply other operations to change its value in complex ways.

Answer: None of the given option is correct

Explanation:

A serializable class is implemented, when an object is serializable interface. If you want to serialize one of your classes, then the class must implemented in the Serializable interface. To implement the serializable interface, convert a class into the series of bytes and when serializable object might reference your class. Serializable classes are useful when you wanted to persist cases of the class or send them over wire.

Answer:

 It may underestimate the importance of RDBMS in real world as, database system for storing the multimedia object images and images,consequently the objects and operation become more complex that is why, it is degrading the performance of the application in RDBMS. It is also dependence on the structure query language as, it is comparatively simple query optimization and unable to handle complex applications.

A relational database is a combination of many relation in the form of two dimensional table of rows and the columns containing tuples. The rows are called as records and the columns are called as attributes.

Answer:

True: Merge Sort sorts a list using divide-conquer approach.

Merge_Sort(B,p,n)  //p is the starting index of array B and n is the last index.

1. if(p<n)

2.        q ← (p+n)/2    //divides the list into two sub-lists

2.        Merge_Sort(B, p, q) //sorts the left half

3.        Merge_Sort(B, q+1, n) //sorts the right half.

4.        Merge(B, p, q, n)

Merge(B, p, q, n)

1.l ← q-p+1.  //no. of elements in left half

2.m ← n-q  //no. of elements in right half.

3.for x ← 1 to l

4.      Left[x] = B[p+x -1] //The elements of left half are copied to Left array

5.for y ← 1 to m.

6.      Right[y]= B[q+y]  //The elements of right half are copied to right array

7. x ← 1, y ←1

8.for z ← p to n.

9.      if( Left[x] ≤ Right[y] ) // to merge the two lists Left and Right, the    //elements are compared.

10.     {   A[z] ← Left[x]   //smaller one comes to the merged list.

11.          x++. }

12.    else

13.      {   A[z] ← Right[y]

14.          y++ }

Explanation:

The Merge_Sort(A, p, n) algorithm first divides the whole array into two halves. Then again divides the sub-lists into it's halves and so on.

Then using merge algorithm it compares the elements of both halves one by one and keep it in sorted order.

Answer:

The water fall life cycle model is explained as:

The waterfall life cycle model is defined as a sequential designed process in which progress are flowing steadily downwards through the process of analysis, design, testing and maintenance. It is the process of managing the development when something is complex.

Benefits:

Drawbacks:

Answer: Both Agile and waterfall model are software development models to deliver a final outcome in the form of a software product. Waterfall model is sequential process with the requirements beings rigid and defined before beginning the software development.

Agile method basically  concerned with the requirements of the client. Here both testing and development is carried out at the same time.

Explanation:

More differences between the two include :

Waterfall model is easy to manage whereas in agile model as the the client requirements changes and wants more functionalities is becomes a bit more difficult to manage. the role of project manager is very crucial in waterfall model whereas the role of developers ans testers is more important in Agile model.

Answer:

False

Explanation:

Constructors have to have the same name as their classes for proper syntax, if their names are different it will result in an error. Methods contained within the class can/should have different names, it is allowed because methods require return types while constructors cannot have return types.

Answer: The QA/Testing process consist of the following:

1. Requirement specification

2. Reviewing the code.

3. Unit testing

4. Integration test

5. Performance testing

Explanation:

We start of by the requirement specification try to gather all the information accurately. Then begins the coding process where there is review of the code so that they perform their desired purpose. After modules are completed we perform unit testing of the different modules individually and also do the integration testing once all the modules are completed. At the end we perform the performance testing to take a note on their desired output and other quality parameters.

Answer: vector<int> intList

Explanation:

Using the above declaration we can declare intList to be a vector and the component type to be int.

example:

int main()

{

vector<int> intList

   intList.push_back(1);                          

   intList.push_back(2);                          

   intList.push_back(3);                        

   printList(intList);  // printing the list

}

Answer and Explanation:

The bootstarp loader is also know as bootstrapping a bootstrap loader is usually located in EPROM (erasable programmable read only memory). It is a non volatile memory. The booststrap loader is automatically exicuted by the processor when we turn on the computer.Non volatile memory is that memory in which retain their content even when the power is swithed off.

Answer: Bootstrap program is generally found in the ROM (read only memory) else EEPROM (Electrically erasable programmable read-only memory)

Explanation:Bootstrap loader or program is referred as the program that gets into action or execution when there is the rebooting process in the operating system and it initializes it. It is usually located in EEPROM of the system. After the restarting of the computer system , all the loaded data gets transferred into the RAM(Random access memory).

Answer:

The answer is Frequency Spectrum.

Explanation:

The frequency spectrum is range of all component frequencies.It contains all the waves which are as following:-

Gamma Rays

X-Rays

Ultraviolet

Visible light.

Infrared

Micro wave

Radio wave

These all waves have their range of frequencies.The waves that are visible to us is only the visible light.

Answer:

Serial communication are connected using 2 types of connector

Explanation:

The two types of connector for serial communication are:

1. Nine pin connector.

2. Twenty five pin connector.

for 9 pin connector we have:

pin 1 = data carrier detect

pin 2= received data

pin 3= transmitted data

pin 4= data terminal ready

pin 5= signal ground

pin 6= data set ready

pin 7= request to send

pin 8= clear to send

pin 9= ring indicator

Here, the minimum number of pins can be pin 2,3 and 5 which are receive, transmit and ground signal to establish a communication without handshaking.

The minimum number of pins actually depend on the type of software we use.

Answer:

a. Data link layer

Explanation:

A trailer / footer is the additional data (metadata) which is positioned at the end of the data block being stored or transferred,it  may contain information for the processing of the data block or simply placed at the end of the block.

In data transmission, the data is called the payload or body after the end of the header and before the trailer starts.

In Data link layer, it contain three parts-

Answer:

35

Explanation:

Answer: False

Explanation:

This code code not deletes element from deq. This insert element at the beginning of deq. if it was deq.pop_front(elem) then it would have deleted the first element.

Therefore, it is false.

Answer:

JAVA program to display the array elements both forward and backward is given.

public class MyProgram {

   public static void main(String args[]) {    

     int len = 5;

     int[] courseGrades = new int[len];      

     courseGrades[0] = 7;

     courseGrades[1] = 10;

     courseGrades[2] = 11;

     courseGrades[3] = 9;

     courseGrades[4] = 10;      

     System.out.println("The elements of array are ");

     for(int i=0; i<len; i++)

     {

         System.out.print(courseGrades[i]+" ");

     }  

// new line is inserted    

     System.out.println();      

     System.out.println("The elements of array backwards are ");

     for(int i=len-1; i>=0; i--)

     {

       // elements of array printed backwards beginning from last element

       System.out.print(courseGrades[i]+" ");

     }

// new line is inserted    

     System.out.println();  

   }

}

OUTPUT

The elements of array are  

7 10 11 9 10  

The elements of array backwards are  

10 9 11 10 7  

Explanation:

This program uses for loop to display the array elements.

The length of the array is determined by an integer variable, len.

The len variable is declared and initialized to 5.

int len = 5;

The array of integers is declared and initialized as given.

int[] courseGrades = new int[len];

We take the array elements from the question and initialize them manually.

First, we print array elements in sequence using for loop.

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

To display in sequence, we begin with first element which lies at index 0. The consecutive elements are displayed by incrementing the value of variable i.

The array element is displayed followed by space.

System.out.print(courseGrades[i]+" ");

Next, we print array elements in reverse sequence using another for loop.

for(int i=len-1; i>=0; i--)

To display in reverse sequence, the last element is displayed first. The previous elements are displayed by decrementing the value of variable i.

At the end of each for loop, new line is inserted as shown.

System.out.println();

The length and elements of the array are initialized manually and can be changed for testing the program.

Loops are used to perform operations that would be repeated in a certain number of times; in other words, loops are used to perform repetitive and iterative operations

The loop statements are as follows:

for(int i = 0; i<sizeof(courseGrades)/sizeof(courseGrades[0]);i++){

       cout<<courseGrades[i]<<" ";

   }

cout<<endl;

   for(int i=sizeof(courseGrades)/sizeof(courseGrades[0]) - 1; i >=0; i--){

       cout<<courseGrades[i]<<" ";

   }

cout<<endl;

The flow of the above loops is as follows

Read more about loops at:

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Answer:

/* EnterComments Here*/

Explanation:

/* EnterComments Here*/   is the right syntax for comments in java.

we can use double farword slash (//)  for single line comment and for mutliple line we can use /* comments here */ and for documentation comment we use below syntax-

/**

*

*

*/

Answer:

SOP=AB'+B'C

POS=B'(A'+C)

Shorthand Minterms=m₀+m₁+m₅

Shorthand Maxterms=M₃+M₂+M₄+M₆+M₇

Explanation:

For the full explanation of this question refer to the image attached which is of the k-Map of F.As we can see in the k-map that there are only 3 ones.by making 2 pairs of 1 we get the SOP expression.

Rest of them are zero from there we will get the POS expression.

The one's in the k-map represent the Minterms and 0's represent Maxterms and the number written in the box is their respective minterm and maxterm number.Minterms are represented by m and maxterms are represented by M.