Which technology translates public external IP addresses to private internal IP addresses, allowing multiple LAN gadgets to share one public web connection? MCQ with Answer and Explanation

Question

Which technology translates public external IP addresses to private internal IP addresses, allowing multiple LAN gadgets to share one public web connection?

A. DHCP

B. NAT (Network Address Translation)

C. DNS

D. ARP

Answer: Option B

Solution (By JKSSB Mock Tests)

NAT enables a router to map private, non-routable internal LAN addresses to a singular public-facing IP, conserving global IPv4 pools.

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Question #1

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What specialized technology enables data networks to handle both voice calls and standard data traffic over a single unified IP infrastructure?

A. DHCP

B. VoIP (Voice over IP)

C. ARP

D. NAT

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Correct Answer: Option B

Explanation:
VoIP converts analog voice audio into digital packets, allowing phone calls to travel over standard IP networks.

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Question #2

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Which system assigns dynamic, temporary IP addresses automatically to client workstations whenever they connect to a local area network?

A. DNS

B. ARP

C. NAT

D. DHCP

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Correct Answer: Option D

Explanation:
DHCP (Dynamic Host Configuration Protocol) automates the allocation of IP addresses, subnet masks, and gateway pointers to connecting clients.

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