Software Developer

What do you mean by Inter-Process Communication?
What is a semaphore?
What do you mean by a Deadlock?
What are deadlock prevention techniques?

Write a program to generate the reverse of a given number N. Print the corresponding reverse number.

Note : If a number has trailing zeros, then its reverse will not include them. For e.g., reverse of 10400 will be 401 instead of 00401.

Real world example of all the OOPS concept.
Difference between array and linked list.

Let us call a number prime? if it has exactly two distinct prime divisors. For example, numbers 6, 18, 24 are prime?, while 4, 8, 9, 42 are not. Find the number of prime? numbers which are between 1 and ‘N’, inclusive.

Example :

‘N’ = 7
 6 is the only prime? number in 1-7. So, the answer is 1.

Introduce yourself.
Why cognizant?
Why join service based company and not product based company?