MCQ Practice
Clear, exam-focused explainers on core computer science subjects and programming.
286 articles in this topic
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.
Computer Networks Application Layer MCQs: 12 solved DNS, HTTP and email questions
Application layer MCQs with solutions: 12 solved GATE, PSC and PSU questions on DNS, Telnet, FTP, HTTP over TCP, cookies, and the SMTP to POP3 email flow.
Process Management and Process States MCQs: 12 solved questions
Process management and process states MCQs for GATE, DSSSB and PSU exams: the process lifecycle, legal state transitions, the PCB and TCB, and the schedulers.
Disk Scheduling MCQs: 12 solved questions (FCFS, SSTF, SCAN)
Disk scheduling MCQs for GATE, UGC NET, DSSSB and BPSC: FCFS, SSTF, SCAN and C-SCAN head-movement numericals, seek time and direction changes, each solved.
Threads and Process Creation MCQs: 12 solved questions with explanations
Threads and process creation MCQs for GATE, UGC NET and PSU papers: user versus kernel threads, what threads share, fork counting, and thread cancellation.