Which of the following can provide Network Address Translation?
A.
A, DNS server
B.
A web server
C.
A RAS server
D.
A proxy server
Explanation:
A proxy server hides the IP addresses of all hosts on the internal network by replacing the private IP address of any requesting host with its own public IP address, thus providing Network Address Translation.
Incorrect
Answers:
A: A, Domain Name Service (DNS) server resolves fully qualified domain names and host names to IP addresses. It does not provide NAT functionality.
B: A web server hosts the actual web sites. It does not provide NAT functionality.
C: A Remote Access Service (RAS) server allows remote clients to access a LAN though a dial-up connection and allows the remote clients to access files and services on the LAN. It does not provide NAT functionality.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 12-25.
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 6, 56, 67-69, 136.