Real Interview Questions

Cognizant Interview Questions (Real, Asked)

14 real questions candidates were actually asked at Cognizant interviews. Practice any of them out loud with Roundd AI and get instant feedback — free, no signup.

1. 1.

   Write a program to swap two numbers without using a temporary variable.

   Programmer Analyst · Technical

2. 2.

   Write a query to retrieve only unique values from a table using SQL.

   Programmer Analyst

3. 3.

   What is BCNF? Define normalization.

   Programmer Analyst

4. 4.

   Explain the concept of flagging a semaphore.

   Programmer Analyst

5. 5.

   What do you think makes you stand out for a job at Cognizant?

   Programmer Analyst

6. 6.

   Remove duplicates from an array.

   Programmer Analyst

7. 7.

   What is the difference between DDL and DML?

   Programmer Analyst

8. 8.

   Explain the ACID properties.

   Programmer Analyst

9. 9.

   What is the difference between a set and a tuple in Python?

   Programmer Analyst

10. 10.

    Reverse a string in one line.

    Programmer Analyst

11. 11.

    What are the different types of joins, and what is a self join?

    Programmer Analyst

12. 12.

    What is the difference between DELETE and TRUNCATE?

    Programmer Analyst

13. 13.

    What are *args and **kwargs in Python?

    Programmer Analyst

14. 14.

    Given two arrays, find their common elements.

    Programmer Analyst