CCNA 4 Chapter 5 v5.0 Exam Answers 2014

1 Typically, which network device would be used to perform NAT for a corporate environment?

DHCP server


host device

router


server


switch

2 What is the group of public IPv4 addresses used on a NAT-enabled router known as?

outside local addresses


inside local addresses

inside global addresses


outside global addresses

3 When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?

private IP addresses


global public IP addresses


Internet-routable addresses


both private and public IP addresses

4 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


static NAT


dynamic NAT


port forwarding

5 Which type of NAT maps a single inside local address to a single inside global address?

dynamic

static


port address translation


overloading

6 Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?

Use dynamic NAT to provide addresses for the servers.


Place all of the servers in their own Class C private subnet.


Use DHCP to assign addresses from the pool of Class B addresses.

Assign static internal addresses and public external addresses to each of the servers

7 What is a disadvantage of NAT?

There is no end-to-end addressing.


The router does not need to alter the checksum of the IPv4 packets.


The internal hosts have to use a single public IPv4 address for external communication.


The costs of readdressing hosts can be significant for a publicly addressed network.

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CCNA 4 Chapter 5 v5.0 Exam Answers 2014