Home » Cisco » 210-260 v.2 » What security feature allows a private IP address to access the Internet by translating it to a public address?
What security feature allows a private IP address to access the Internet by translating it to a public address?
A. NAT
B. hairpinning
C. Trusted Network Detection
D. Certification Authority
Correct Answer: A
Explanation/Reference:
One of the main functions of NAT is to enable private IP networks to connect to the Internet. Network address translation replaces a private IP address with a public IP address, translating the private addresses in the internal network into legal, routable addresses that can be used on the public Internet. In this way, NAT conserves public addresses; for example, NAT rules can be configured to utilize only one public address for the entire network in communications with the outside world.
Reference: http://www.cisco.com/c/en/us/td/docs/security/security_management/cisco_security_manager/security_manager/4-3/user/guide/CSMUserGuide_wrapper/NATchap.pdf