Free 640-878 Training Exam Question 5

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Free 640-878 Training Exam Question 5

Which two statements about carrier-grade NAT are true? (Choose two.)

A. It conserves IPv4 addresses.
B. A service provider issues private IP addresses to its customers.
C. A service provider translates the private IP address of its customer to another private IP
D. It is implemented on the CE and PE routers.
E. It is designed to simplify IPv6 addressing.


Answer: A,B

Explanation: Explanation/Reference:
Carrier Grade NAT Overview
Carrier Grade Network Address Translation (CGN) is a large scale NAT that is capable of
providing private IPv4 to public IPv4 translation in the order of millions of translations to
support several hundred thousand subscribers and bandwidth throughput of at least 10
Gbps full-duplex.

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