Module G8: NAT (PE)

Question 1

_______ is a process in which one or more local IP addresses are translated into one or more Global IP addresses and vice versa in order to provide Internet access to the local hosts.

Answer 1

NAT

Question 2

One disadvantage of NAT, is that it complicates tunneling protocols such as _____.

Answer 2

IPsec

Question 3

This type of IP address, ______ _____ ____, is assigned to a host, and not assigned by the service provider. These are private and seen from within the network.

Answer 3

Inside Local Address

Question 4

This type of IP address, ______ _____ ____, represents one or more local addresses to the outside world and is seen from outside of the network.

Answer 4

Inside Global Address

Question 5

This type of IP address, ______ _____ ____, is the actual address of the destination host in the local network after translation.

Answer 5

Outside Local Address

Question 6

This type of IP address, ______ _____ ____, is the host as seen from outside the network. It is the IP address of the destination host before translation.

Answer 6

Outside Global Address

Question 7

_____ ______ differs from static; multiple public internet protocol addresses are mapped and used with an internal or private IP address.

Answer 7

Dynamic NAT

Question 8

With dynamic NAT, you to need to specify ___ sets of addresses on your Cisco router.

Answer 8

two

Question 9

With dynamic NAT, _____ don’t exist in the NAT table until the router receives traffic that requires it.

Answer 9

translations

Question 10

______ is a constant mapping that allows private IP networks with unregistered IP addresses to connect to the internet.

Answer 10

Static NAT

Question 11

The first step to configure static NAT, is to configure IP address mapping by using _______ command.

Answer 11

PRIVATE_IP PUBLIC_IP

Question 12

The second step to configure static NAT, is to configure the routers interface using the ip nat _______ command.

Answer 12

inside

Question 13

The third step to configure static NAT, is to configure the routers interface using the ip nat _______ command.

Answer 13

outside

Question 14

_____ is another type of dynamic NAT which can map multiple Private IPv4 addresses to a single public IP address.

Answer 14

Port Address Translation

Question 15

PAT, also known as NAT _____, is the NAT technology which prevents IPv4 Address depletion.

Answer 15

overloading

Question 16

_____ provides the ability to balance incoming traffic across multiple, similar network resources.

Answer 16

Load Balancing

Question 17

Load Balancing operates at the application level, using protocols such as HTTP and ____ to make decisions based on the actual content of each message.

Answer 17

SMTP

Question 18

Two advantages of Load Balancing is that it offers smart routing based on the URL and provides _______.

Answer 18

Caching

Question 19

Disadvantages of load balancing is that it is more expensive and requires ______.

Answer 19

Decrypting

Question 20

Load Balancing at layer 4, the transport level, has the advantage of only maintaining ____ connection between the client and server NATed so that it can serve a maximum of TCP connections.

Answer 20

One