Database MCQ’s

1. Table with similar records is
A. Record

B. Field

C. File

D. None
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]
2. SQL is a
A. Software
B. Structured language
C. Unstructured language
D. Object oriented language
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]B[/su_spoiler]
3. Retrival  and storage of data is
A. Managing output
B. Data manipulation
C. Data capturing
D. All of these
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]
4. Process of merging relations is …
A. View relations
B. View data models
C. View integration
D. None of these
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]
5. In  E-R diagram, an oval is for
A. Relationship
B. Entity
C. Attribute
D. Process
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]
6. Example of one-to-many relationship in E-R diagram
A. Father-son
B. Teacher-student
C. Country-capital
D. Mother-daughter
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A &D[/su_spoiler]
7. We can create an index on
A. Foreign key
B. Secondary key
C. Primary key
D. All of above
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]
8. The relationship between data objects is …
A. Data table
B. Data flow Diagram
C. Data modelling
D. None of these
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]
9. We can represent optional relationship by
A. O
B. />
C. </
D. ^
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]
10. Modality is also related to …
A. Mandatory
B. Cardinality
C. Optional
D. Logical
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]B &C[/su_spoiler]
11.  Basic data distribution strategy is …
A. Replicated
B. Centralized
C. Partitioned
D. All of the above
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]
12. Physically arranging records on secondary storage devices of a file is …
A. File organization
B. Integrity constraints
C. Indexes
D. Data distribution strategy
[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]

 

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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