NETSEC-ANALYST Question #426: Real Exam Question with Answer & Explanation

The correct answer is C. Dynamic IP and Port (DIPP) D. Dynamic IP. Oversubscription is a feature that allows you to use more private IP addresses than public IP addresses for NAT. This means that multiple private IP addresses can share the same public IP address, as long as they use different ports. Oversubscription can be used in two types of N

Question

In which two types of NAT can oversubscription be used? (Choose two.)

Options

AStatic IP
BDestination NAT
CDynamic IP and Port (DIPP)
DDynamic IP

Explanation

Oversubscription is a feature that allows you to use more private IP addresses than public IP addresses for NAT. This means that multiple private IP addresses can share the same public IP address, as long as they use different ports. Oversubscription can be used in two types of NAT: Dynamic IP and Port (DIPP) and Dynamic IP. DIPP NAT translates both the source IP address and the source port number of the outgoing packets, and can have an oversubscription rate greater than . Dynamic IP NAT translates only the source IP address of the outgoing packets, and can have an oversubscription rate of 1 or less. Static IP and Destination NAT do not support oversubscription, as they require a one-to-one mapping between the private and public IP

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