DBMS MCQs
Solved DBMS MCQs from the KnowledgeGate question bank: normalization, SQL, transactions.
26 articles in this topic
SQL Inner and Outer Join MCQs: 12 Solved Questions with Explanations
Solve 12 join MCQs, check each answer immediately, and learn the row-preservation and matching rules behind the result.
DDL, DML, DCL, TCL and DESC MCQs: 12 Solved SQL Questions with Explanations
Solve 12 SQL command MCQs on schema changes, rows, privileges, transactions and table inspection. Each answer explains the decisive clue and every distractor.
Lock-Based Protocols & Basic 2PL MCQs: 12 Solved Questions with Explanations
Solve 12 published Basic 2PL MCQs, from growing and shrinking phases to lock compatibility, precedence graphs, deadlock, strictness and SQL update order.
Data Warehousing MCQs: 11 Solved Questions with Explanations
Solve 11 published data warehousing questions, then check each answer from first principles. The set covers definitions, warehouse properties, cuboids, scrubbing, BI, CRM and SSIS.
Division Operator MCQs: 10 Solved Questions with Explanations
Solve ten published Division Operator MCQs, then use the worked missing-pair method to diagnose errors in universal queries, schemas, and cardinality.
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.