What is the Correction Layer?

What is the Correction Layer?
A . Correction Layer is a daemon which corrects errors on Backplane interfaces
B . Correction Layer is a mechanism which handles asymmetric connections in multi-appliance
system. For example, in case of NAT
C . Correction Layer is a mechanism which activated in case of asymmetric routing
D . Correction Layer is a Layer of GAIA OS which corrects misspelled commands and allows them to execute

View Answer

Answer: B

Explanation:

The Correction Layer is a Maestro component that ensures that packets from the same connection are handled by the same Security Group Module (SGM) in a multi-appliance system. This is especially important when NAT is involved, as packets sent from the client to the server can be distributed to a different SGM than packets from the same session sent from the server to the client. The Correction Layer must then forward the packet to the correct SGM.

Reference:

• NAT and the Correction Layer on a Security Gateway – Check Point Software1

• Solved: Maestro queries – Check Point CheckMates