1. Which method is used to make an asynchronous HTTP request?

2. The searching technique that takes O (1) time to find a data is

3. What is Callback in NodeJS?

4. What is sent to an Array.map() function?

5. Which of the following command will show the version of Node?

6. B Trees are generally

7. Calculate the output of the following pseudocode.

Integer w, x, y, zSet w = 21, x = 11for (each y from 21 to 30 )           for (each z from -1 to 0 )                   w = w - 1                   if(w > y)                          Continue                    End if                    w = 1                   if(w > z)                           Jump out of the loop                    End if            End for End for Print w + x

8. What is the following code segment doing?
void fn( ){
char c;
cin.get(c);
if (c != ‘\n’) {
fn( );
cout.put(c);
}
}

9. _____ is an inbuilt method in jQuery used to hide the selected element.

10. You have to sort a list L consisting of a sorted list followed by a few “random” elements. Which of the following sorting methods would be especially suitable for such a task?

11. If a node having two children is deleted from a binary tree, it is replaced by its

12. What will be the output of the following pseudocode for arr[] = 1,2,3,4,5

Initialize i, nSet arr[]= 1, 2, 3, 4, 5for i = 0 to n - 2  arr[i] = arr[i] + arr[i+1]End for

13. In the HTML DOM (Document Object Model), everything is a ____

14. What is the output of following pseudocode.

Integer x, y, z Set x = 10, y = 16,z = 3 if(x > y)   x = 2 * y Else   y = x / 2 End if if(z > y)   z = 2 * y Else   y = z / 2 End if Print x + y + z

15. What will be the output of the following pseudocode for arr[] = 5, 4, 3, 2, 1

Initialize i, n Initialize an array of size n Take the values for the array for i = 0 to n - 2   arr[i] = arr[i] * arr[i+1] End for print the array of elements

16. If h is any hashing function and is used to hash n keys in to a table of size m, where n<=m, the
expected number of collisions involving a particular key x is :

17. what will be the output of the following pseudocode for x = 10, y = 5.

Integer solve(Integer x, Integer y) if(y > 0)     if(x > 0)       return x + y + solve(2, y - 5) + solve(x - 10, 1)     End if End if return x + y End function solve()

18. Which of the following is false about AJAX?

19. In modern websites what is the common usage for JSON ?

20. Which is the correct value calling a JavaScript code?

21. The OS of a computer may periodically collect all the free memory space to form contiguous
block of free space. This is called

22. What is the output of the following pseudocode for n = 5, m = 6.

Integer solve(Integer n, Integer m )   if(n > 4 && m < 7)     return solve(n +1, m + 1)   Else     Return n + m   End if End function solve()

23. Which of the following is not the Fed method in jQuery

24. For an undirected graph with n vertices and e edges, the sum of the degree of each vertex is equal to

25. A technique for direct search is

26. Which function is carried out by the following pseudocode?

Declare an array "word" of string data typeDeclare a variable lTake a string as input in the wordfor l = 0 to (length of word) – 1  print word[l]End forAlgorithm End

27. What will be the output of the following pseudocode for arr[]= 5, 4, 3, 2, 1?

Initialize i, nInitialize an array of size nTake the values for the arrayfor i = 0 to n - 2  arr[i] = arr[i] - arr[i+1]End for

28. what is the output following pseudocode.

Declare an array "word" of string data typeDeclare a variable lTake a string as input in the wordfor l = (length of word) – 1 to 0  print word[l]End forAlgorithm End

29. The postfix form of the expression ( ) ( ) G / F E D C B A ∗ − ∗ ∗ + is

30. what the following pseudocode will produce.

Integer x, y, zSet x = 0, y = 3, z = 11if(x + (1 | 2) && y + (2 | 3))   x = x - 2  y = xElse   x = z   y = y ^ 2 End if Print x + y + z