0
0

Network Topologies

Introduction

Network topology describes the physical or logical arrangement of devices in a computer network. Questions on network topologies are very common in banking, SSC, and technical awareness exams because they are direct, factual, and easy-scoring when concepts are clear.

Pattern: Network Topologies

Pattern

Network topology refers to how computers, cables, and devices are arranged and connected to each other in a network.

Step-by-Step Example

Question

In which network topology is every device connected to a central device such as a hub or switch?

Options:
A. Bus topology
B. Ring topology
C. Star topology
D. Mesh topology

Solution

  1. Step 1: Identify the key structure

    The question mentions a central device to which all computers are connected.

  2. Step 2: Match the structure with topology types

    In Star topology, all nodes connect to a central hub or switch.

  3. Final Answer:

    Star topology → Option C

  4. Quick Check:

    Central hub or switch always indicates Star topology ✅

Quick Variations

• Single backbone cable → Bus topology

• Devices connected in a circular manner → Ring topology

• Every device connected to every other device → Mesh topology

Trick to Always Use

  • Step 1 → Look for keywords like central device, loop, backbone, fully connected.
  • Step 2 → Match the keyword with the corresponding topology.

Summary

Summary

  • Network topology defines the layout of a network.
  • Star topology uses a central hub or switch.
  • Bus topology uses a single main cable.
  • Ring topology forms a closed loop.
  • Mesh topology provides multiple paths between devices.

Example to remember:
Central device → Star, Single cable → Bus, Loop → Ring, All-to-all → Mesh

Practice

(1/5)
1. Which network topology uses a single main cable (backbone) to which all devices are connected?
easy
A. Bus topology
B. Star topology
C. Ring topology
D. Mesh topology

Solution

  1. Step 1: Identify the connection structure

    All devices are attached to one common cable.

  2. Step 2: Match with topology characteristics

    Bus topology uses a single backbone cable for all connections.

  3. Final Answer:

    Bus topology → Option A

  4. Quick Check:

    Single backbone cable confirms Bus topology ✅
Hint: One main cable shared by all devices = Bus.
Common Mistakes: Choosing Star because multiple devices are connected.
2. In which network topology is data transmitted in a circular manner from one device to the next?
easy
A. Star topology
B. Ring topology
C. Bus topology
D. Mesh topology

Solution

  1. Step 1: Observe the data flow pattern

    Data moves from one device to another in a loop.

  2. Step 2: Match with topology design

    Ring topology connects devices in a circular fashion.

  3. Final Answer:

    Ring topology → Option B

  4. Quick Check:

    Circular data flow indicates Ring topology ✅
Hint: Loop or circle always means Ring.
Common Mistakes: Confusing circular layout with Mesh.
3. Which network topology provides the highest reliability by connecting every device to every other device?
easy
A. Bus topology
B. Ring topology
C. Mesh topology
D. Star topology

Solution

  1. Step 1: Identify reliability requirement

    The network must continue working even if one link fails.

  2. Step 2: Match with topology features

    Mesh topology provides multiple paths between all devices.

  3. Final Answer:

    Mesh topology → Option C

  4. Quick Check:

    Multiple alternative paths confirm Mesh topology ✅
Hint: All-to-all connections = Mesh.
Common Mistakes: Choosing Star due to central control.
4. Which network topology becomes completely non-functional if the main cable fails?
medium
A. Bus topology
B. Ring topology
C. Star topology
D. Mesh topology

Solution

  1. Step 1: Identify the critical component

    The entire network depends on one main cable.

  2. Step 2: Match with topology weakness

    Bus topology fails completely if the backbone cable breaks.

  3. Final Answer:

    Bus topology → Option A

  4. Quick Check:

    Single point of failure indicates Bus topology ✅
Hint: Backbone failure = Bus failure.
Common Mistakes: Assuming Ring fails only partially.
5. Which network topology is most expensive to implement due to a large number of connections?
medium
A. Star topology
B. Ring topology
C. Bus topology
D. Mesh topology

Solution

  1. Step 1: Consider infrastructure cost

    Cost increases with the number of cables and connections.

  2. Step 2: Match with topology design

    Mesh topology requires connections between every pair of devices.

  3. Final Answer:

    Mesh topology → Option D

  4. Quick Check:

    Maximum connections lead to highest cost in Mesh topology ✅
Hint: More connections = higher cost = Mesh.
Common Mistakes: Assuming Star is costliest due to central device.

Mock Test

Ready for a challenge?

Take a 10-minute AI-powered test with 10 questions (Easy-Medium-Hard mix) and get instant SWOT analysis of your performance!

10 Questions
5 Minutes