What is the purpose of the ARP cache? MCQ with Answer and Explanation

Question
What is the purpose of the ARP cache?
A. To store recently resolved IP-to-MAC mappings
B. To store DHCP leases
C. To store routing tables
D. To store DNS records
Answer: Option A
Solution (By JKSSB Mock Tests)
ARP cache holds IP-to-MAC address mappings to reduce ARP requests.
This question belongs to: Computer Computer Networking
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Practice More Computer Networking Questions

Question #1
Which device simply acts as a multiport signal repeater, copying incoming bits blindly out to all other ports without reading any address headings?
A. Router
B. Switch
C. Hub
D. Gateway
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Correct Answer: Option C

Explanation:
A hub lacks processing logic to check frame targets. It serves as a Layer 1 broadcast device, repeating signals out across all connected nodes.
This question belongs to: Computer Computer Networking
Question #2
Which device uses an internal bridging engine to isolate network traffic by individual ports, delivering full-duplex channels to each connected node?
A. Layer 1 Hub
B. Layer 2 Switch
C. Signal Terminator
D. Analog Modem
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Correct Answer: Option B

Explanation:
A switch operates at Layer 2 to segment a network, providing dedicated, full-duplex communication channels for each individual port.
This question belongs to: Computer Computer Networking
Question #3
Which of the following is an example of a Class C IP address based on the traditional classful addressing scheme?
A. 192.168.1.50
B. 172.16.254.1
C. 10.0.0.5
D. 240.0.0.1
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Correct Answer: Option A

Explanation:
Class C IP addresses have a first octet range spanning from 192 to 223, commonly used for small local area networks.
This question belongs to: Computer Computer Networking
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