What does the term packet refer to in networking? MCQ with Answer and Explanation

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What does the term packet refer to in networking?

A. A unit of data at the physical layer

B. A unit of data at the application layer

C. A unit of data at the network layer

D. A unit of data at the data link layer

Answer: Option C

Solution (By JKSSB Mock Tests)

A packet is a formatted unit of data at the network layer (layer 3).

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Question #1

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Which technology allows a network router to translate private internal LAN IP addresses into a single public internet address, conserving global IPv4 address space?

A. Network Address Translation (NAT)

B. Address Resolution lookup

C. Domain Name mapping

D. DHCP Allocation Pool

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Correct Answer: Option A

Explanation:
NAT maps private internal IP addresses to a public IP address, allowing multiple LAN devices to share a single internet connection.

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Question #2

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Which topological structure combines elements from two or more distinct, basic topologies (such as mixing star and bus layouts) within a single infrastructure?

A. Ring Topology

B. Mesh Topology

C. Linear Topology

D. Hybrid Topology

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Correct Answer: Option D

Explanation:
A hybrid topology integrates multiple foundational network topologies into a combined, customized networking layout.

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