Which device connects different networks and forwards data packets based on IP addresses? MCQ with Answer and Explanation

Question
Which device connects different networks and forwards data packets based on IP addresses?
A. Modem
B. Switch
C. Router
D. Hub
Answer: Option C
Solution (By JKSSB Mock Tests)
A router operates at the network layer and routes packets between different networks using IP addresses.
This question belongs to: Computer Computer Networking
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Question #1
Which network is used for connecting personal devices like a smartphone and smartwatch?
A. WAN
B. PAN
C. LAN
D. MAN
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Correct Answer: Option B

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 purpose of a default gateway?
A. To provide security by filtering packets
B. To translate domain names to IP addresses
C. To assign IP addresses dynamically
D. To route traffic from a local network to other networks
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Correct Answer: Option D

Explanation:
A default gateway is a router that connects a local network to external networks, forwarding traffic when the destination is not local.
This question belongs to: Computer Computer Networking
Question #3
Which IP address class has the first octet range of 1 to 126?
A. Class D
B. Class A
C. Class C
D. Class B
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Correct Answer: Option B

Explanation:
Class A addresses range from 1.0.0.0 to 126.255.255.255, with first bit 0.
This question belongs to: Computer Computer Networking
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