DBMS components and functions MCQs in DBMS

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 23, 2024

MCQs on DBMS Components and Functions

1. Which of the following is not a component of a DBMS?
   • A. Database Engine
   • B. Database Schema
   • C. Query Processor
   • D. Report Writer
   • Answer: D. Report Writer
2. The component of a DBMS that interacts with the user and the database is:
   • A. Storage Manager
   • B. Database Engine
   • C. Query Processor
   • D. Transaction Manager
   • Answer: C. Query Processor
3. Which DBMS component is responsible for ensuring atomicity, consistency, isolation, and durability (ACID properties) in a transaction?
   • A. Query Processor
   • B. Transaction Manager
   • C. Storage Manager
   • D. Database Engine
   • Answer: B. Transaction Manager
4. The DBMS component that manages the storage of data on disk is:
   • A. Query Processor
   • B. Storage Manager
   • C. Transaction Manager
   • D. Database Engine
   • Answer: B. Storage Manager
5. Which component of a DBMS is responsible for translating SQL queries into a series of low-level instructions?
   • A. Query Processor
   • B. Database Engine
   • C. Storage Manager
   • D. Transaction Manager
   • Answer: A. Query Processor
6. The function of a Data Dictionary in a DBMS is to:
   • A. Store the actual data
   • B. Manage user queries
   • C. Maintain metadata about the database
   • D. Execute transactions
   • Answer: C. Maintain metadata about the database
7. Which of the following is a function of the Database Engine?
   • A. Executing query instructions
   • B. Managing storage space
   • C. Maintaining metadata
   • D. Ensuring transaction properties
   • Answer: A. Executing query instructions
8. The component of a DBMS that deals with user authentication and authorization is:
   • A. Query Processor
   • B. Database Engine
   • C. Storage Manager
   • D. Transaction Manager
   • Answer: B. Database Engine
9. Which of the following is not a primary function of a DBMS?
   • A. Data storage and retrieval
   • B. Data integrity management
   • C. Internet browsing
   • D. Transaction support
   • Answer: C. Internet browsing
10. The DBMS component that manages the disk space and the structure of the files stored on disk is:
    • A. Query Processor
    • B. Storage Manager
    • C. Transaction Manager
    • D. Database Engine
    • Answer: B. Storage Manager
11. In a DBMS, which component is responsible for concurrency control?
    • A. Query Processor
    • B. Storage Manager
    • C. Transaction Manager
    • D. Database Engine
    • Answer: C. Transaction Manager
12. The layer of a DBMS architecture that provides an abstraction to the physical storage of data is called:
    • A. Logical Layer
    • B. Physical Layer
    • C. Conceptual Layer
    • D. External Layer
    • Answer: C. Conceptual Layer
13. The component of a DBMS responsible for managing user queries and interactions is:
    • A. User Interface
    • B. Query Processor
    • C. Transaction Manager
    • D. Storage Manager
    • Answer: B. Query Processor
14. Which component of a DBMS provides the mechanism for backup and recovery?
    • A. Query Processor
    • B. Storage Manager
    • C. Transaction Manager
    • D. Database Engine
    • Answer: C. Transaction Manager
15. Which of the following DBMS components is responsible for handling and optimizing queries?
    • A. Query Processor
    • B. Database Engine
    • C. Storage Manager
    • D. Transaction Manager
    • Answer: A. Query Processor

 

More MCQs Of Database Systems

1. Database Models MCQs in DBMS
   1. Hierarchical model MCQs in DBMS
   2. Network model MCQs in DBMS
   3. Relational model MCQs in DBMS
   4. Object-oriented model MCQs in DBMS
   5. NoSQL databases MCQs in DBMS
2. Relational Database Model MCQs in DBMS
   1. tables, attributes, tuples, and relations MCQs in DBMS
   2. Primary keys and foreign keys MCQs in DBMS
   3. Integrity constraints MCQs in DBMS
3. SQL (Structured Query Language) MCQs in DBMS
   1. Data Definition Language (DDL) MCQs in DBMS
   2. Data Manipulation Language (DML) MCQs in DBMS
   3. Data Control Language (DCL) MCQs in DBMS
   4. Transaction Control Language (TCL) MCQs in DBMS
   5. Advanced SQL queries and functions MCQs in DBMS
4. Database Design MCQs in DBMS
   1. Entity-Relationship (ER) modeling MCQs in DBMS
   2. Extended ER modeling MCQs in DBMS
   3. Normalization and normal forms (1NF, 2NF, 3NF, BCNF) MCQs in DBMS
   4. Denormalization MCQs in DBMS
5. Database Management System Architecture MCQs in DBMS
   1. Three-schema architecture (external, conceptual, internal) MCQs in DBMS
   2. Data independence MCQs in DBMS
   3. DBMS components and functions MCQs in DBMS
6. Storage and File Structure MCQs in DBMS
   1. Data storage on physical media MCQs in DBMS
   2. File organization and access methods MCQs
   3. Indexing (B-trees, hash indexing) MCQs in DBMS
   4. RAID technology MCQs in DBMS
7. Query Processing and Optimization MCQs in DBMS
8. Database Transaction Management MCQs in DBMS
   1. ACID properties (Atomicity, Consistency, Isolation, Durability) MCQs in DBMS
   2. Transaction states and lifecycle MCQs in DBMS
   3. Concurrency control techniques (locking, timestamping, multiversion) MCQs in DBMS
   4. Deadlock detection and resolution MCQs in DBMS
9. Database Security and Authorization MCQs in DBMS
   1. Authentication and authorization mechanisms MCQs in DBMS
   2. Data encryption techniques MCQs in DBMS
   3. Role-based access control MCQs in DBMS
   4. SQL injection prevention MCQs in DBMS
10. Backup and Recovery MCQs in DBMS
    1. Backup types and strategies MCQs in DBMS
    2. Recovery techniques (log-based, shadow paging) MCQs in DBMS
    3. Disaster recovery planning MCQs in DBMS
11. Distributed Databases MCQs in DBMS
    1. Distributed database architecture MCQs MCQs in DBMS
    2. Data fragmentation, replication, and allocation in DBMS
    3. Distributed query processing MCQs in DBMS
    4. Consistency models and protocols MCQs in DBMS

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