What hardware component is installed inside a computer tower to provide a physical connection port for an Ethernet cable or network medium? MCQ with Answer and Explanation

Question

What hardware component is installed inside a computer tower to provide a physical connection port for an Ethernet cable or network medium?

A. Modem Chipset

B. Network Interface Card (NIC)

C. Analog Gateway Block

D. Bus Terminator Plug

Answer: Option B

Solution (By JKSSB Mock Tests)

The NIC (Network Interface Card) houses the physical circuitry and MAC address required to interface a computer with network cabling.

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Question #1

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Which IP address range indicates a Class A network identity under traditional routing rules?

A. 1.0.0.0 to 126.255.255.255

B. 192.0.0.0 to 223.255.255.255

C. 128.0.0.0 to 191.255.255.255

D. 224.0.0.0 to 239.255.255.255

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Correct Answer: Option A

Explanation:
Class A IP addresses utilize the first octet range from 1 to 126 (excluding 127 which is reserved for loopback diagnostics).

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Question #2

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What notation standard is used to write out physical hardware MAC addresses for human configuration monitoring?

A. Dotted decimal values

B. Binary data arrays

C. Six pairs of hexadecimal characters separated by colons or hyphens

D. Base-64 string fields

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Correct Answer: Option C

Explanation:
MAC addresses are written as six pairs of hexadecimal digits separated by colons or dashes (e.g., 00:11:22:33:44:55).

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Question #3

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What is the total number of hexadecimal characters used to write out a standard 48-bit MAC address string?

A. 8 characters

B. 32 characters

C. 16 characters

D. 12 characters

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Correct Answer: Option D

Explanation:
A 48-bit MAC address is represented by 12 hexadecimal characters arranged in 6 pairs (e.g., AA:BB:CC:DD:EE:FF).

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