Database Models Solved MCQs Questions Answers

Hierarchical Model 

Network model

Database Models MCQs

 

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

1. Letters, digits, and symbols are known as

(A) Bits




(B) Characters




(C) Fields




(D) Records




---

2. Which behavior allows the database to specify user-defined behavior for database operations?

(A) Stationary




(B) Semantic




(C) Dynamic




(D) Triggered




---

3. Which model concept must be used to describe database structure?

(A) Structural




(B) Server




(C) Client




(D) Data




---

4. DML statements converted to normal procedure calls in the host language are handled by

(A) DML Compiler




(B) DML Precompiler




(C) DML Executor




(D) DML Pre Executor




---

5. ______ databases are classified to store data for data constraints, data relationships, and data types.

(A) Logical Design




(B) Client Module




(C) Server Module




(D) Structure




---

6. Which diagram is used to represent object-oriented attributes and functions?

(A) Functional




(B) Entity




(C) Attribute




(D) Class




---

7. Considering binary relationships, possible cardinality ratios are

(A) One : Two




(B) 1 : N




(C) M : N




(D) Both B & C




---

8. The attributes that can be arranged into hierarchy are called

(A) Derived




(B) Atomic




(C) Composite




(D) Simple




---

9. ERD is used to represent

(A) Function




(B) Attribute




(C) Both A & B




(D) Hierarchy




---

10. Which feature allows users to update the database?

(A) Basic set of operations




(B) Basic set of modules




(C) Basic set of design




(D) Basic set of instructions




---

11. Which smallest item can assume value 0 or 1 in a computer?

(A) Record




(B) Character




(C) Field




(D) Bit




---

12. Tables may be stored in

(A) System




(B) Files




(C) Storage




(D) Records




---

13. Which model uses a collection of tables to represent data relationships?

(A) Physical




(B) View




(C) Logical




(D) Relational




---

14. Java Database Connectivity (JDBC) standard corresponding features provide

(A) Java Language




(B) NET Language




(C) Structured Query Language




(D) C Language




---

15. The code representation used by C++ is

(A) ESCII




(B) ASCII




(C) BSCII




(D) PSCII




---

16. A single binary digit is called a

(A) Octal




(B) Decimal




(C) Hexadecimal




(D) Bit




---

17. Which abstraction process suppresses details to highlight important features for understanding storage?

(A) Structural




(B) Data




(C) Client




(D) Server




---

18. DML statements will convert through the DML precompiler to normal calls in the

(A) Host Language




(B) Query Language




(C) Compiler Language




(D) System Language




---

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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