
HD Careers
June 2, 2025 at 06:58 AM
🔈 Cognizant Today Interview Experience 🔈
▪️Date: 1 June
▪️Time: 10 - 11.30AM, 11.30 - 1PM
1. OSI vs TCP/IP
2. Technologies in password encryption
3. Classes and interfaces
4. Constructor
5. Types of constructors
6. Various data types in Java
7. OOPs in Java
8. Method overloading and overriding
9. Types of inheritance
10. super keyword
11. this keyword
12. Exception handling
13. More on exceptions
14. throw and throws – usage location
15. Runtime exceptions
16. Access modifiers
17. More on access modifiers
18. Declaring private and static in the same method
19. ArrayList
20. Integer type
21. ArrayList with Integer
22. Add elements 1 to 6 to ArrayList
23. Print even numbers from the list
24. SQL query to fetch all details from student table
25. SQL to get students with highest marks
26. Explanation of the above SQL
27. DELETE vs TRUNCATE
28. Java concepts
29. OOPs in Java (again)
30. Why inheritance
31. What is method overriding
32. Constructor
33. Ways to create object from class
34. Interface
35. Access modifiers
36. Exception handling and its types
37. Checked exception
38. Java program for Fibonacci
39. Explanation of Fibonacci
40. SQL query to count students per branch
41. Explanation of branch count query
42. Things in JavaScript
43. JavaScript vs HTML
44. Why use JavaScript, not just HTML and CSS
45. List vs Set in Java
46. Why collections instead of arrays
47. Collections vs Arrays
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