Network Topologies MCQs
Network Topologies MCQs
Class: CBSE Class 9 |
Subject: Computer Science
Section: Computer Networking | Topic: Network Topologies
Board: CBSE Board Examinations
Section: Computer Networking | Topic: Network Topologies
Board: CBSE Board Examinations
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 9 Computer Science examination preparation. Each question includes a detailed explanation for concept clarity.
1. What is a Network Topology?
Answer: B. Arrangement of network devices
A network topology refers to the physical or logical layout in which computers and networking devices are connected. It defines how data flows between devices.
A network topology refers to the physical or logical layout in which computers and networking devices are connected. It defines how data flows between devices.
2. Which topology uses a central hub or switch?
Answer: B. Star
In star topology, all devices connect to a central hub/switch. Data passes through this central device, making management easier.
In star topology, all devices connect to a central hub/switch. Data passes through this central device, making management easier.
3. Which topology has a single backbone cable?
Answer: A. Bus
Bus topology uses one main cable called a backbone. All devices connect to it, making it simple but fault‑sensitive.
Bus topology uses one main cable called a backbone. All devices connect to it, making it simple but fault‑sensitive.
4. Data travels in a circular path in which topology?
Answer: B. Ring
In ring topology, each computer connects to two others forming a circle. Data moves in one direction through the ring.
In ring topology, each computer connects to two others forming a circle. Data moves in one direction through the ring.
5. Which topology is most reliable due to multiple paths?
Answer: A. Mesh
Mesh topology connects every device to others. If one link fails, data uses alternate paths, ensuring high reliability.
Mesh topology connects every device to others. If one link fails, data uses alternate paths, ensuring high reliability.
6. Which topology is cheapest to install?
Answer: B. Bus
Bus topology requires less cable and no central device, making it cost‑effective for small networks.
Bus topology requires less cable and no central device, making it cost‑effective for small networks.
7. Failure of hub affects entire network in?
Answer: B. Star
Since all devices depend on the central hub, its failure stops the whole network.
Since all devices depend on the central hub, its failure stops the whole network.
8. Combination of two or more topologies is called?
Answer: A. Hybrid
Hybrid topology merges different topologies (e.g., star + bus) to utilize advantages of each.
Hybrid topology merges different topologies (e.g., star + bus) to utilize advantages of each.
9. Which topology is difficult to troubleshoot?
Answer: C. Mesh
Due to numerous interconnections, identifying faults in mesh networks is complex.
Due to numerous interconnections, identifying faults in mesh networks is complex.
10. Which topology resembles a branching structure?
Answer: A. Tree
Tree topology has hierarchical levels like branches of a tree, combining star and bus features.
Tree topology has hierarchical levels like branches of a tree, combining star and bus features.
11. Token passing is used in?
Answer: A. Ring
A token circulates to control data transmission, preventing collisions.
A token circulates to control data transmission, preventing collisions.
12. Most scalable topology?
Answer: A. Star
Devices can be added easily without disturbing the network.
Devices can be added easily without disturbing the network.
13. Terminators are used in?
Answer: A. Bus
Terminators prevent signal reflection at cable ends.
Terminators prevent signal reflection at cable ends.
14. Highest cable requirement?
Answer: A. Mesh
Every node connects to all others.
Every node connects to all others.
15. Centralized management is easiest in?
Answer: A. Star
Control through hub simplifies monitoring.
Control through hub simplifies monitoring.
16. Data collision chances highest in?
Answer: A. Bus
Shared backbone causes collisions.
Shared backbone causes collisions.
17. Internet backbone resembles?
Answer: A. Mesh
Multiple redundant paths ensure reliability.
Multiple redundant paths ensure reliability.
18. Small LANs commonly use?
Answer: A. Star
Easy installation and troubleshooting.
Easy installation and troubleshooting.
19. Fault isolation easiest in?
Answer: A. Star
Each device has separate link.
Each device has separate link.
20. Which topology combines hierarchy + backbone?
Answer: A. Tree
Tree uses backbone with branching nodes.
Tree uses backbone with branching nodes.
