CCNA NAT

CCNA practice Questions and answers on NAT

CCNA NAT QUESTIONS

1. What type of NAT would you configure to allow the users to share the internet connection on the router

a. PAT
b. Static NAT
c. Dynamic NAT
d. 1-1 NAT.

2. Which is the common filed which is changed by the NAT router when a packet exists.

a. Source IP address.
b. Destination IP address.
c. Source port
d. Destination Port.

3. Which flavor of NAT can be used to setup a public web server on the LAN

a. Static NAT
b. Dynamic NAT
c. PAT
d. None of the above.

Video Course – Cisco CCNA: Vlans, Access-List & NAT + Bonus Material!

4. Which command is used on the exit interface of the router just before the packet is sent out

a. ip nat inside
b. ip nat outside
c. access-list
d. ip route.

5. The LAN IP address of a server is 192.168.1.2 and the public IP address is 1.1.1.1. If static NAT has to be configured, which of the following configurations can be used.

a. ip nat inside source static 192.168.1.2 1.1.1.1
b. ip nat inside source static 1.1.1.1 192.168.1.2
c. ip nat inside source static access-list 1 192.168.1.2 1.1.1.1
d. ip nat inside source static access-list 1 1.1.1.1 192.168.1.2

6. The LAN network address on a network is 192.168.1.0/24. If the users on the LAN network has to natted, what should be the ACL used.

a.ACL is not required.
b.access-list 1 permit 192.168.1.0 0.0.0.255
c.access-list 101 permit 192.168.1.0 0.0.0.255 0.0.0.0 0.0.0.0
d.access-list 1 permit 192.168.1.0 255.255.255.255

7. What type of NAT can be used for configuring multiple public IP addresses for different servers

a. Static NAT
b. Dynamic NAT
c. pat
d. Static NAT with overload.

Answers

a
a
a
b
a
b
b

Explanation

1. PAT which stands for port address translation is used for internet sharing.
2. The source IP address in the IP header is changed to the routers IP address, in both NAT and PAT.
3. Static NAT is configured for private to public mapping.
4. ip nat outside command is used on the NAT exit interface.
5. a
6. b.
7. Dynamic NAT is used for configuring multiple public IP addresses to private IP addresses.

Video Course – Cisco CCNA: Vlans, Access-List & NAT + Bonus Material!

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