Networking Flashcards

1
Q

What are the VPC size limits for IPv4?

A

Largest is a /16 network yielding 65,535 IPv4 addresses. Smallest is a /28 network yielding 16 IPv4 addresses.

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2
Q

What is the CIDR of the AWS default VP?

A

The default CIDR is 172.31.0.0/16.

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3
Q

What is a CGW?

A

Customer Gateway - A logical configuration representation of an external network router, useful in hybrid cloud scenarios.

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4
Q

How many IPv4 addresses are reserved (unavailable) per subnet?

A

Five.

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