DBMS MCQs
Solved DBMS MCQs from the KnowledgeGate question bank: normalization, SQL, transactions.
21 articles in this topic
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.
Foreign Key and Referential Integrity MCQs: 12 Solved Questions with Explanations
Solve 12 published foreign key MCQs with clear explanations of parent-child direction, recursive references, cascading deletes and database consistency.
Dependency Preserving Decomposition MCQs: 12 Solved DBMS Questions
Solve 12 DBMS questions and learn to test dependency preservation, lossless joins and BCNF separately, using projected FDs and attribute closures.
Data Modelling in Warehouses: 8 MCQs and 2 Descriptive Questions Solved
Solve ten published warehouse-modelling questions, then use the explanations to separate fact tables, star and snowflake schemas, fact constellations, cuboids and OLAP design.
B-Tree and B+ Tree MCQs: 12 Solved Structure and Insertion Questions
Solve 12 B-tree and B+ tree questions from first principles. Each answer explains the governing invariant, byte inequality or insertion state.
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.