6.8.4 Module Quiz – NAT for IPv4

What address translation is performed by static NAT?

An inside local address is translated to a specified inside global address.

Why is NAT not needed in IPv6?​

Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.

What is one advantage of using NAT at the edge of the network?

Changing ISPs is simpler because the devices on the inside network do not have to be configured with new addresses when the outside address changes.

What are two tasks to perform when configuring static NAT? (Choose two.)

Identify the participating interfaces as inside or outside interfaces. Create a mapping between the inside local and inside global addresses.

What benefit does NAT64 provide?

It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.

Which statement accurately describes dynamic NAT?

It provides an automated mapping of inside local to inside global IP addresses.

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)

NAT introduces problems for some applications that require end-to-end connectivity. NAT provides a solution to slow down the IPv4 address depletion.

Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?

PAT

A network administrator wants to examine the active NAT translations on a border router. Which command would perform the task?

Router# show ip nat translations

When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

The request to the server for the seventh user fails.

What is a disadvantage of NAT?

There is no end-to-end addressing.

What is a security feature of using NAT on a network?

allows internal IP addresses to be concealed from external users

A company designs its network so that the PCs in the internal network are assigned IP addresses from DHCP servers, and the packets that are sent to the Internet are translated through a NAT-enabled router. What type of NAT enables the router to populate the translation table from a pool of unique public addresses, as the PCs send packets through the router to the Internet?

dynamic NAT

A company has been assigned the 203.0.113.0/27 block of IP addresses by the ISP. The company has over 6000 internal devices. What type of NAT would be most appropriate for the employee workstations of the company?

dynamic NAT overload using the pool of addresses

Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?

inside local