MCQ Practice
Clear, exam-focused explainers on core computer science subjects and programming.
189 articles in this topic
BCD & Special Codes MCQs: 12 Solved Questions with Explanations
Work through 12 previous-year MCQs on digit-wise BCD, Excess-3 correction and Gray-code conversion, from GATE, ISRO, DSSSB and UGC NET, each solved step by step.
Set Operations & Cartesian Product MCQs: 12 Solved Questions with Explanations
Solve 12 carefully explained MCQs on union, intersection, set difference, identities, counting, Cartesian products, and ordered set pairs.
Encoding Schemes MCQs: 12 Solved ASCII, Unicode and UTF Questions
Test your understanding with 12 solved encoding-scheme MCQs. Each answer explains the standard, bit width or byte equation, followed by a worked UTF-8 and UTF-32 trace.
LRU Page Replacement MCQs: 12 Solved Questions with Page-Fault Traces
Solve 12 LRU questions with checked hit-fault traces, victim choices, policy comparisons, and one address-to-page conversion.
CSMA/CD MCQs: 12 Solved Questions on Collision Detection, Frame Size and Backoff
Solve 12 CSMA/CD MCQs step by step, covering Ethernet collision handling, round-trip delay, minimum frame size, backoff probabilities and useful bandwidth.
Loops & Iteration MCQs in C: 12 Solved Questions with Explanations
Solve 12 previous-year C loop MCQs by checking conditions, tracing each pass and recognising the mathematics hidden inside short code fragments.
Optimal Merge Pattern MCQs: 10 Solved Questions with Explanations
Practise the optimal merge rule across MCQ and NAT problems. Each solution shows the sorted pool, total merge cost, comparison adjustment, or storage order you need.
Python Standard Libraries MCQs: Solved Questions with Explanations
Solve 14 Python standard-library questions by tracing imports, return types, ranges, statistics, NumPy operations and two deceptively tricky outputs.
Pumping Lemma MCQs: 12 Solved Questions with Explanations
Twelve GATE, UGC NET and HPSC pumping lemma MCQs, worked with concrete witness strings, every legal split handled, and closure arguments where they are needed.
Parser Basics and Top-Down Parsing MCQs: 12 Solved Questions with Explanations
Twelve solved MCQs on the parser's job, top-down parsing, left recursion, LMD against RMD and grammar-encoded precedence, with two derivations worked in full.
Unary Operators (Selection and Projection) MCQs: 11 Solved Questions
Solve 11 past-paper MCQs on relational-algebra selection and projection, from recognising each operator to composing and transforming expressions safely.
1's Complement MCQs: 10 Solved Questions with Explanations
Solve 10 previous-year MCQs on 1's complement, signed magnitude, binary fractions, radix complements and fixed-point representation. Each explanation shows the decisive conversion or range check.