Network address translation interview question

1.

Which command would you place on interface connected to the Internet?
A.     ip nat inside
B.     ip nat outside
C.     ip outside global
D.     ip inside local
Answer & Explanation

Answer: Option B

Explanation:

As in access-lists, you must configure your interfaces before NAT will provide any translations. On the inside networks you would use the command ip nat inside. On the outside interface, you will use the command ip nat outside.
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2.

Which command will show you all the translations active on your router?
A.     show ip nat translations
B.     show ip nat statistics
C.     debug ip nat
D.     clear ip nat translations *
Answer & Explanation

Answer: Option A

Explanation:

The command show ip nat translations will show you the translation table containing all the active NAT entries.
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3.

Which command would you place on interface on a private network?
A.     ip nat inside
B.     ip nat outside
C.     ip outside global
D.     ip inside local
Answer & Explanation

Answer: Option A

Explanation:

As in access-lists, you must configure your interfaces before NAT will provide any translations. On the inside networks you would use the command ip nat inside. On the outside interface, you will use the command ip nat outside.
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4.

Pat Address Translation is also termed what?
A.     NAT Fast
B.     NAT Static
C.     NAT Overload
D.     Overloading Static
Answer & Explanation

Answer: Option C

Explanation:

Another term for port address translation is NAT Overload because that is the command used to enable port address translation.
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5.

When creating a pool of global addresses, which of the following can be used instead of the netmask command?
A.     / (slash notation)
B.     prefix-length
C.     no mask
D.     block-size
Answer & Explanation

Answer: Option B

Explanation:

Instead of the netmask command, you can use the prefix-length <length> statement.

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