What is the purpose of a router's routing table? MCQ with Answer and Explanation

Question
What is the purpose of a router's routing table?
A. Stores security policies
B. Stores IP addresses and next-hop information for forwarding packets
C. Stores MAC addresses
D. Stores domain name mappings
Answer: Option B
Solution (By JKSSB Mock Tests)
A routing table contains destination networks and the next hop to forward packets.
This question belongs to: Computer Computer Networking
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Question #1
What is the primary role of a subnet mask when paired with an active IPv4 address value?
A. To provide physical encryption layers over frame headers.
B. To toggle networks between half and full-duplex transmission modes.
C. To resolve hardware MAC pointers to domain paths.
D. To explicitly delineate the network routing segment from the unique host identifier segment.
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Correct Answer: Option D

Explanation:
The subnet mask uses binary bit masking to indicate which part of an IP address refers to the network identity and which part refers to the host device.
This question belongs to: Computer Computer Networking
Question #2
What is the network ID in an IP address?
A. The portion that identifies the host
B. The portion of the IP address that identifies the network
C. The broadcast address
D. The subnet mask
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Correct Answer: Option B

Explanation:
The network ID is the part of the IP address that remains constant for all devices in the same network.
This question belongs to: Computer Computer Networking
Question #3
What does the abbreviation WAN stand for?
A. Web Area Network
B. Wide Area Network
C. Worldwide Area Network
D. Wireless Area Network
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Correct Answer: Option B

Explanation:
WAN stands for Wide Area Network, covering a large geographic area.
This question belongs to: Computer Computer Networking
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