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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