What type of NAT performs a many-to-one address mapping between local and global addresses and uses source ports to uniquely identify sessions?

Last Updated: Jan 12, 2021
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What type of NAT performs a many-to-one address mapping between local and global addresses and uses source ports to uniquely identify sessions?

  • PAT
  • dynamic NAT
  • static NAT
  • NAT-PT

Explanation: AT is Port Address Translation and allows multiple addresses to be mapped to one, or to a few addresses, by tracking port numbers used in sessions between internal hosts and the Internet. PAT ensures that devices use a different TCP port number for each session with a server on the Internet.

Related exam: Quiz - IP Services

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