Which address is used by a router to forward packets between networks? MCQ with Answer and Explanation

Which address is used by a router to forward packets between networks?
A. Port number
B. Physical address
C. IP address
D. MAC address
Answer: Option C
Solution (By JKSSB Mock Tests)
Routers use IP addresses (network layer) to determine the destination network and forward packets.

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Practice More Computer Networking Questions

Question #1
Which network is used for connecting personal devices like a smartphone and smartwatch?
A. WAN
B. MAN
C. PAN
D. LAN

Correct Answer: Option C


Explanation:
PAN (Personal Area Network) is designed for short-range communication among personal devices, typically within 10 meters.

This question belongs to: Computer Computer Networking
Question #2
What is the maximum number of IP addresses in a Class C network?
A. 65534
B. 256
C. 254
D. 16,777,214

Correct Answer: Option C


Explanation:
Class C has 8 host bits, giving 2^8 = 256 addresses, with 2 reserved (network and broadcast), so 254 usable.

This question belongs to: Computer Computer Networking
Question #3
What is the main difference between a router and a switch?
A. Router forwards based on MAC; switch forwards based on IP
B. Router forwards based on IP; switch forwards based on MAC
C. Router operates at layer 2; switch at layer 3
D. No difference

Correct Answer: Option B


Explanation:
Routers use IP addresses (layer 3), switches use MAC addresses (layer 2).

This question belongs to: Computer Computer Networking