Network model MCQs in DBMS

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

MCQs on Network Model in DBMS

1. Which of the following is true about the network database model?
   • A. It organizes data in a tree-like structure.
   • B. It allows multiple relationships between records.
   • C. It is based on a hierarchical structure.
   • D. It does not support many-to-many relationships.
   • Answer: B. It allows multiple relationships between records.
2. In the network database model, data is represented using which structure?
   • A. Tree
   • B. Graph
   • C. Table
   • D. Array
   • Answer: B. Graph
3. Which of the following statements is true about the network database model?
   • A. Each child can have only one parent.
   • B. Each record can have multiple parent and child records.
   • C. It is easy to implement one-to-many relationships.
   • D. It does not support parent-child relationships.
   • Answer: B. Each record can have multiple parent and child records.
4. Which language is commonly used to manipulate data in the network database model?
   • A. SQL
   • B. DML
   • C. COBOL
   • D. Navigational DML
   • Answer: D. Navigational DML
5. What is a major advantage of the network database model?
   • A. Simple structure and easy to understand.
   • B. Ability to handle many-to-many relationships efficiently.
   • C. No need for pointers to establish relationships.
   • D. It eliminates data redundancy.
   • Answer: B. Ability to handle many-to-many relationships efficiently.
6. In the network model, a relationship is called a:
   • A. Node
   • B. Link
   • C. Segment
   • D. Set
   • Answer: D. Set
7. Which of the following is a disadvantage of the network database model?
   • A. Complex to design and implement.
   • B. Inefficient for many-to-many relationships.
   • C. Does not support data integrity.
   • D. Limited query capabilities.
   • Answer: A. Complex to design and implement.
8. In the network database model, a record that does not point to any other record is called a:
   • A. Root
   • B. Leaf
   • C. Isolated node
   • D. Terminal node
   • Answer: B. Leaf
9. Which of the following DBMSs uses a network model?
   • A. Oracle
   • B. MySQL
   • C. Integrated Data Store (IDS)
   • D. PostgreSQL
   • Answer: C. Integrated Data Store (IDS)
10. What kind of relationship does the network database model support?
    • A. One-to-one
    • B. One-to-many
    • C. Many-to-many
    • D. Both B and C
    • Answer: D. Both B and C
11. In the network model, which of the following is used to represent a relationship between records?
    • A. Array
    • B. Matrix
    • C. Pointer
    • D. Tree
    • Answer: C. Pointer
12. Which of the following is NOT a characteristic of the network model?
    • A. It uses a graph structure.
    • B. It allows each child to have multiple parents.
    • C. It simplifies the representation of complex relationships.
    • D. It restricts each child to a single parent.
    • Answer: D. It restricts each child to a single parent.
13. The network model was standardized by which organization?
    • A. ISO
    • B. IEEE
    • C. CODASYL
    • D. ANSI
    • Answer: C. CODASYL
14. Which data structure is commonly associated with the network model?
    • A. Tree
    • B. Graph
    • C. Linked list
    • D. Array
    • Answer: B. Graph
15. In the network model, what term describes a collection of records and their relationships?
    • A. Schema
    • B. Subschema
    • C. Set type
    • D. Data type
    • Answer: C. Set type

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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