DBMS MCQs
Solved DBMS MCQs from the KnowledgeGate question bank: normalization, SQL, transactions.
16 articles in this topic
Variations of 2PL: 8 Solved MCQs and 2 Worked Questions on Strict, Rigorous and Conservative Locking
Test the differences between basic, strict, rigorous and conservative 2PL. Eight objective questions and two worked schedules show how each lock rule changes the answer.
Types & DBA Functions MCQs: 12 Solved DBMS Questions
Test database models, administrator duties and workload types against 12 previous-year exam questions. Choose each answer first, then use the explanation to identify the controlling clue.
Timestamp Ordering Protocols MCQs: 12 Solved DBMS Questions with Explanations
Solve 12 timestamp ordering MCQs with step-by-step explanations. Practise basic timestamp traces, wait-die order, Thomas' Write Rule, and multiversion reads.
Concurrency Control MCQs: 10 Solved DBMS Questions with Explanations
Test each option before reading the answer. These 10 DBMS questions build from conflict rules and anomalies to serializability, locks, and deadlock freedom.
DBMS Data Models, Architecture and Components MCQs: 12 Solved Questions
Test whether you can separate data models, abstraction levels, catalogs, schemas and metadata. These 12 MCQs include concise explanations and a diagnostic review plan.
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.
Inner and Outer Join MCQs: 12 Solved DBMS Questions with Explanations
Solve 12 practice MCQs on natural, inner, left and full outer joins. Each answer traces tuples, keys, degree or cardinality.
Super Key, Candidate Key & Primary Key MCQs: 12 Solved Questions
Solve 12 DBMS key MCQs with the deciding step shown for each answer. Practise minimality, attribute closure, superkey counting and primary-key rules.
ACID Properties in DBMS MCQs: 12 Solved Questions with Explanations
Solve 12 previous-year database transaction questions from GATE, IBPS, DSSSB and UGC NET papers by learning which clue points to atomicity, consistency, isolation, or durability.
Cardinalities, Participation and Entity Strength MCQs: 12 Solved DBMS Questions
Solve 12 DBMS MCQs on relationship cardinality, participation constraints and weak entities. Each answer includes the deciding ER-model rule.
Boyce-Codd Normal Form (BCNF) MCQs: 10 Solved Questions with Explanations
Solve 10 BCNF MCQs from GATE, UGC NET and DSSSB papers with clear reasoning on superkeys, candidate-key closures, 3NF exceptions and decomposition trade-offs.
Transaction States in DBMS MCQs: 11 Solved Questions with Explanations
Solve 11 practice MCQs on DBMS transaction states. Each answer explains the state, transition or recovery rule you need to apply.