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A rotation cipher shifts each letter in a string by a fixed number of positions in the alphabet. For example, a shift of 2 turns 'A' into 'C'. Given the string "HELLO" and a shift of 3 positions, what is the resulting string?

• KHOOR

• KHOOP

• IGGNN

• JGNNQ

You have an unsorted list of elements. You observe that the sorting algorithm being used repeatedly divides the list into smaller lists, sorts them and then merges them back together.

Which sorting algorithm is being used?

• Bubble Sort

• Quick Sort

• Merge Sort

• Insertion Sort

Choose the correct option for the given code snippet.

• It will print x

• Compile time error

• It will print 0

• Segmentation fault

Choose the correct option for the given code snippet.

• Hello World

• This is Error

• Compile time Error

• Segmentation fault

You are tasked with designing a system that needs to store a collection of unique items and allow for quick lookup, insertion and deletion.

Which data structure would be most appropriate for this task?

• Array

• Linked list

• HashSet

• Stack

Choose the correct one.

• 8

• 1024

• 2000

• NONE OF THE ABOVE

What will be the output of the given code snippet?

• 8 9

• 8 10

• ERROR  

• 8 <garbageValue>

What should be the output?

• 5

• 6

• Segmentation fault

• 3

How would you extract the 3rd bit (from the right) of a number n?

• (n >> 2) & 1

• (n >> 3) & 1

• (n & (1 << 2))

• (n & (1 << 3))

What will the output of the following code for N = 5 and K =2?

• 0

• 2

• 5

• 1