What is the main disadvantage of a bus topology? MCQ with Answer and Explanation

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What is the main disadvantage of a bus topology?

A. Requires a central hub

B. Single point of failure in the backbone

C. High cost

D. Difficult to add new devices

Answer: Option B

Solution (By JKSSB Mock Tests)

In bus topology, if the main cable (backbone) fails, the entire network goes down.

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Question #1

What structural architecture is used by a peer-to-peer (P2P) network model?

A. A high-capacity central mainframe coordinates all data assets.

B. Every computer node can act as both a client that requests data and a server that shares data directly with other devices.

C. Devices connect to a single central cable using structural terminators.

D. Nodes communicate exclusively via analog phone line modems.

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Correct Answer: Option B

Explanation:
A P2P network distributes roles evenly across all nodes, allowing devices to share resources directly without a central server.

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Question #2

How many total bits comprise a standard physical hardware MAC address etched into a network interface chip?

A. 64 bits

B. 128 bits

C. 48 bits

D. 32 bits

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Correct Answer: Option C

Explanation:
A MAC address is a permanent 48-bit physical hardware identifier, usually represented as 12 hexadecimal characters.

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Question #3

Which network type connects disparate computer terminals across massive geographical footprints, such as countries or continents, with the internet being the prime example?

A. PAN

B. WAN

C. LAN

D. MAN

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Correct Answer: Option B

Explanation:
A Wide Area Network (WAN) extends over a vast national or global geographic scope, stitching together multiple smaller regional networks.

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