Which of the following is a disadvantage of a star topology? MCQ with Answer and Explanation

Question
Which of the following is a disadvantage of a star topology?
A. If the central hub fails, the network fails
B. Expensive cabling compared to bus
C. Low data rates
D. Difficult to add new devices
Answer: Option A
Solution (By JKSSB Mock Tests)
Star topology relies on a central device; its failure disables the whole network.
This question belongs to: Computer Computer Networking
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Practice More Computer Networking Questions

Question #1
What condition occurs on a shared bus network if multiple stations attempt to transmit data frames over the backbone line simultaneously?
A. Signal termination bypass
B. MAC address duplication
C. Data Collision
D. Automatic loopback routing
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Correct Answer: Option C

Explanation:
Data collisions occur when multiple devices transmit signals over a shared electrical medium simultaneously, garbling the data frames.
This question belongs to: Computer Computer Networking
Question #2
Which of the following topologies is most expensive to implement due to cabling?
A. Mesh
B. Ring
C. Star
D. Bus
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Correct Answer: Option A

Explanation:
Mesh topology requires a dedicated connection between every pair of nodes, making it the most expensive.
This question belongs to: Computer Computer Networking
Question #3
What is the purpose of a cable tester in networking?
A. To connect networks
B. To assign IP addresses
C. To verify cable continuity and wiring
D. To measure network speed
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Correct Answer: Option C

Explanation:
Cable testers check for opens, shorts, and proper pinouts in network cables.
This question belongs to: Computer Computer Networking
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