How many total bits define a physical hardware MAC address embedded on a network interface chip? MCQ with Answer and Explanation

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How many total bits define a physical hardware MAC address embedded on a network interface chip?

A. 128 bits

B. 32 bits

C. 64 bits

D. 48 bits

Answer: Option D

Solution (By JKSSB Mock Tests)

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

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Question #1

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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 #2

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Which type of network is the Internet considered?

A. PAN

B. WAN

C. LAN

D. MAN

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Correct Answer: Option B

Explanation:
The Internet is the largest example of a WAN, spanning the entire globe.

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Question #3

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Which of the following is a characteristic of a hub?

A. Broadcasts data to all ports

B. Creates separate collision domains

C. Works at layer 2

D. Forwards data based on MAC addresses

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Correct Answer: Option A

Explanation:
A hub broadcasts incoming traffic to all other ports.

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