Computer Fundamentals is HCLTech's signature section — 15 technical MCQs in 15 minutes covering programming logic, DBMS, operating systems and networking. CS/IT candidates treat it as free marks; for other branches it is the most common sectional-cutoff failure, so prepare it deliberately.
What the technical section covers
- Output tracing and pseudocode (XOR swaps, recursion traces)
- C programming — malloc vs calloc, operators, memory
- OOP — encapsulation, inheritance, polymorphism, abstraction
- DBMS — primary vs unique keys, ACID properties, SQL queries
- Operating systems — paging, segmentation, deadlock, context switching
- Networking — TCP three-way handshake, IP basics
Practice HCLTech computer fundamentals questions
These questions are based on recent memory-based HCLTech papers. Click an option to check your answer instantly.
Trace the output of the following pseudocode sequence:
Trace the return value of fun(49) for the following function (integer division):
Which of the following is NOT one of the four pillars of Object-Oriented Programming?
The same topics come back in the technical interview — a question you guess correctly here (ACID, deadlock conditions, keys) will be asked again face-to-face, so learn the reasoning, not just the answer. See HCLTech interview questions.
Next up: the HCLTech coding round — two problems in about 20 minutes.