MCQ Practice
Clear, exam-focused explainers on core computer science subjects and programming.
194 articles in this topic
Propositional and Predicate Logic MCQs: 12 solved questions with explanations
Twelve solved propositional and predicate logic MCQs for GATE and UGC NET: logical connectives, equivalences, quantifier negation and first-order validity.
Set Theory and Relations MCQs: 12 solved discrete maths questions
Set theory and relations MCQs: 12 solved GATE questions on set operations, relation properties, closures, equivalence relations, posets and Hasse diagrams.
Sequential Circuits MCQs: 11 solved questions on flip-flops and counters
Sequential circuits MCQs with solutions: 11 solved GATE questions on SR, D, JK and T flip-flops, excitation tables, Johnson counters and mod-N counter design.
Combinational Circuits MCQs: 12 solved questions on MUX, decoders and adders
Combinational circuits MCQs with solutions: 12 solved GATE questions on multiplexers, decoders and ROMs, half and full adders, and carry-lookahead adders.
Boolean Algebra and K-Map MCQs: 12 solved questions with explanations
Boolean algebra and K-map MCQs with solutions: 12 solved GATE questions on simplification, SOP and POS forms, self-dual functions and NAND/NOR realization.
Number System MCQs: 12 solved digital electronics questions with explanations
Number system MCQs with solutions: 12 solved GATE questions on binary, octal and hex conversion, radix equations, and 1's and 2's complement signed numbers.
Computer Networks Subnetting MCQs: 12 solved IP addressing questions (GATE, ISRO, state exams)
Subnetting and IP addressing MCQs solved: 12 previous-year GATE, ISRO and state-exam questions on address classes, masks, hosts per subnet, CIDR and VLSM.
DBMS Transaction MCQs: 12 solved questions on ACID, serializability and locking
DBMS transaction MCQs with full solutions: 12 solved GATE and ISRO questions on ACID properties, conflict serializability, recoverability and 2PL locking.
DBMS SQL Query MCQs: 12 solved questions on SELECT, joins and subqueries
DBMS SQL query MCQs: 12 solved previous-year questions on SELECT and DISTINCT, inner and outer joins, GROUP BY and HAVING, and correlated subqueries.
DBMS Normalization MCQs: 12 solved questions from 1NF to BCNF (GATE/NET)
DBMS normalization MCQs: 12 solved previous-year questions from GATE, UGC NET, DSSSB and TPSC papers on 1NF, 2NF, 3NF, BCNF and lossless join decomposition.
Graph MCQs: 10 solved questions on representations, BFS, DFS and connectivity
Graph solved MCQs with explanations: 10 GATE PYQs on the adjacency matrix and list, BFS and DFS traversals, running times, connected components and SCCs.
Context-Free Grammar MCQs: 11 solved questions on CFG, CFL and PDA
Context-free grammar solved MCQs with explanations: 11 GATE PYQs on CFGs, the Chomsky hierarchy, CFL closure properties, pushdown automata and decidability.