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Network Topologies

Introduction

Network topology computer network में devices की physical या logical arrangement को describe करता है। Network topologies पर questions banking, SSC, और technical awareness exams में बहुत common होते हैं क्योंकि concepts clear होने पर ये direct, factual, और easy-scoring होते हैं।

Pattern: Network Topologies

Pattern

Network topology यह बताता है कि computers, cables, और devices network में आपस में कैसे arranged और connected होते हैं।

Step-by-Step Example

Question

किस network topology में हर device एक central device जैसे hub या switch से connected होता है?

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

Solution

  1. Step 1: Key structure को पहचानें

    Question में एक central device का mention है जिससे सभी computers connected होते हैं।

  2. Step 2: Structure को topology types से match करें

    Star topology में सभी nodes एक central hub या switch से connect होते हैं।

  3. Final Answer:

    Star topology → Option C

  4. Quick Check:

    Central hub या switch हमेशा Star topology को indicate करता है ✅

Quick Variations

• Single backbone cable → Bus topology

• Circular manner में connected devices → Ring topology

• हर device हर दूसरे device से connected → Mesh topology

Trick to Always Use

  • Step 1 → Keywords देखें जैसे central device, loop, backbone, fully connected।
  • Step 2 → Keyword को corresponding topology से match करें।

Summary

Summary

  • Network topology network के layout को define करता है।
  • Star topology एक central hub या switch का use करता है।
  • Bus topology एक single main cable का use करता है।
  • Ring topology एक closed loop बनाता है।
  • Mesh topology devices के बीच multiple paths provide करता है।

याद रखने का example:
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

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