Which one of the following effectively obscures network addresses from external exposure when implemented on a firewall or router?

The correct answer is A. Network Address Translation (NAT). Network Address Translation (NAT) is the most effective method for obscuring network addresses from external exposure when implemented on a firewall or router. NAT is a technique that allows a device, such as a firewall or a router, to modify the source or destination IP address

Submitted by salim_om· Mar 5, 2026Communication and Network Security

Question

Options

ANetwork Address Translation (NAT)
BApplication Proxy
CRouting Information Protocol (RIP) Version 2
DAddress Masking

How the community answered

(48 responses)

A
92% (44)
B
2% (1)
C
4% (2)
D
2% (1)

Explanation

Network Address Translation (NAT) is the most effective method for obscuring network addresses from external exposure when implemented on a firewall or router. NAT is a technique that allows a device, such as a firewall or a router, to modify the source or destination IP address of a packet as it passes through the device. NAT can be used to hide the internal IP addresses of a network from the external network, such as the internet, by replacing them with a public IP address. This can enhance the security and privacy of the network, as well as conserve the limited IPv4 address space. Application proxy, RIP version 2, and address masking are not methods for obscuring network addresses from external exposure, as they are either related to different functions or not implemented on a firewall or router.

Topics

#NAT#firewall#network security#IP addressing

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