MCQ Practice
Clear, exam-focused explainers on core computer science subjects and programming.
285 articles in this topic

Direct Memory Access (DMA) MCQs: 10 Solved Questions with Explanations
Test your DMA fundamentals with 10 published MCQs covering controller duties, HOLD and HLDA, transfer modes, sequencing, bandwidth, and CPU overhead. Each answer includes a focused explanation or worked calculation.

Free Space Management MCQs: 12 Solved Questions with Explanations
Solve 12 published free-space and file-management MCQs, then check each answer with direct reasoning and two fully worked bitmap calculations.

Manchester Encoding MCQs: 11 Published Questions, Solved and Scope-Checked
Solve 11 published records filed under Manchester encoding, learn the three line-code conventions, and see five outliers identified by their actual topics.

C Language MCQs Explained: A Worked Output Trace and Exam Traps
Learn to classify C questions, resolve types before values, follow side effects safely, and trace a complete pointer-and-array program to the output 11 3 18.

Merge Sort MCQs: 12 Solved Questions with Explanations
Solve 12 Merge Sort MCQs from the KnowledgeGate question bank. Each answer explains the recurrence, comparison count, space cost, tracing method, or application being tested.

CSS MCQs: 12 Practice Questions with Worked Explanations
Test your CSS fundamentals with 12 MCQs and fresh explanations covering sizing, selector relationships, specificity and Flexbox alignment.

String Operations MCQs: 12 Solved TOC Questions Explained
Work through 12 published MCQs using concrete strings, interval counts, left-to-right traces and counterexamples. Each answer explains the convention that makes it correct.

Simplification of CFG MCQs: 12 Solved Questions with Explanations
Solve 12 published-bank CFG simplification MCQs with fresh explanations, elimination checklists, derivation checks, ambiguity reasoning, and a full mixed simplification.

Log-Based Recovery Techniques MCQs: 11 Solved Questions with Explanations
Solve 11 published log-based recovery MCQs with clear reasoning for WAL, checkpoints, winner-loser classification, crash recovery and SQL rollback.

Boolean Algebra Laws & Optimization MCQs: 12 Solved Questions
Solve 12 published Boolean algebra questions step by step, with a compact law card and clear methods for consensus, factorisation, nested functions and K-map grouping.

Subgroup MCQs: 12 Solved Questions on Definitions, Examples, and Tests
Attempt these 12 published subgroup questions, then use the fresh explanations to check each definition, counterexample, and order calculation.

Basic Addressing Modes MCQs: 12 Solved COA Questions with Explanations
Test your effective-address method on 12 explained COA MCQs, from recognising operand locations to splitting instruction fields and tracing a short program.