Database Management System MCQs with Answers
Practice important Database Management System MCQs with answers and explanations.
Multiple Choice Questions
Q21: What does data inconsistency lead to?
- A: Improved data quality
- B: Loss of information
- C: Enhanced data retrieval
- D: Faster database performance
View Answer
B
Q22: Which of the following best describes ‘Meta Data’?
- A: Raw facts collected for analysis
- B: Data related to real-world objects
- C: Schema for describing data storage and attributes
- D: Actual data stored in a database
View Answer
C
Q23: Who is responsible for database backups and recovery?
- A: Application Programmer
- B: Naïve User
- C: Database Administrator (DBA)
- D: Sophisticated User
View Answer
C
Q24: What is meant by concurrency control in a database system?
- A: Accessing the database only once a day
- B: Multiple users accessing the database simultaneously without conflicts
- C: Ensuring data is deleted after use
- D: Granting user permissions
View Answer
B
Q25: Which of the following is a cost involved in adopting a database system?
- A: Faster access to data
- B: High software and hardware costs
- C: Lower data security
- D: Faster application development
View Answer
B
Q26: What is the key benefit of standardization in database systems?
- A: Faster data retrieval
- B: Easier system development
- C: Enhanced security
- D: Improved visualization
View Answer
B
Q27: Which of the following is the most popular database standard proposed in 1975?
- A: ANSI SPARK
- B: ISO SQL
- C: Oracle DB
- D: Microsoft Access
View Answer
A
Q28: What does the Three-Level Schema architecture primarily achieve?
- A: Data redundancy
- B: Simplifying physical data storage
- C: Separation of physical data and user views
- D: Data encryption
View Answer
C
Q29: Which of the following is an example of a conceptual schema?
- A: User login details
- B: Salesperson data linked to customers and outlets
- C: Customer phone numbers
- D: Product price changes
View Answer
B
Q30: In the Three-Level Schema, which view presents data in user-required formats?
- A: Internal View
- B: Conceptual View
- C: External View
- D: Logical View
View Answer
C