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NAT Characteristics in Cisco Networking

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Questions and Answers

What is the primary use of NAT?

To enable communication between devices on the same local network

To conserve public IPv4 addresses (correct)

To translate public addresses to private addresses

To provide security for private IPv4 addresses

Which RFC defines private IPv4 addresses?

RFC 1951

RFC 1900

RFC 1928

RFC 1918 (correct)

What is the IP address range for Class C private addresses?

169.254.0.0 – 169.254.255.255

172.16.0.0 – 172.31.255.255

10.0.0.0 – 10.255.255.255

192.168.0.0 – 192.168.255.255 (correct)

What role does a NAT router typically play in a network?

Translates private IPv4 addresses to public addresses Signup and view all the answers

Why are private IPv4 addresses used within an organization or site?

To conserve public IPv4 addresses Signup and view all the answers

What does NAT allow networks to do internally?

Use private IPv4 addresses internally and translate them to public addresses when needed Signup and view all the answers

In the context of NAT, what is the inside local address?

The address of the source as seen from the inside network Signup and view all the answers

When a device inside the stub network communicates with a device outside its network, what process does the border router perform?

Network address translation (NAT) Signup and view all the answers

What type of address is the outside global address in NAT?

The address of the destination as seen from the outside network Signup and view all the answers

When a packet is received by R2 in NAT, what does it do after reading the source IPv4 address?

Adds mapping of local to global address to the NAT table Signup and view all the answers

What does the inside global address represent in NAT?

The address of the source as seen from the outside network Signup and view all the answers

Which type of address is any address that appears on the inside portion of the network in NAT terminology?

Inside local address Signup and view all the answers

What does R2 do after receiving a packet with destination address 209.165.200.226?

Translates the inside global address to inside local address Signup and view all the answers