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Q:

Your inside locals are not being translated to the inside global addresses. Which of the following commands will show you if your inside globals are allowed to use the NAT pool?

ip nat pool Corp 198.18.41.129 198.18.41.134 netmask 255.255.255.248

ip nat inside source list 100 int pool Corp overload

A) debug ip nat B) show access - list
C) show ip nat translation D) show ip nat statistics
 
Answer & Explanation Answer: B) show access - list

Explanation:

Once you create your pool, the command ip nat inside source must be used to say which inside locals are allowed to use the pool. In this question we need to see if access - list 100 is configured correctly, if at all , so show access - list is the best answer.

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Q:

Which of the following is considered to be the inside hosts address after translation?

A) Inside local B) outside local
C) Inside global D) Outside global
 
Answer & Explanation Answer: C) Inside global

Explanation:

An inside global address is considered to be the IP address of the host on the private network after translation.

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Q:

When creating a pool of global address, 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: B) prefix - length

Explanation:

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

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Q:

Which command will create a dynamic pool named Todd that will provide you with 30 global addresses?

A) ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.240 B) ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224
C) ip nat pool todd 171.16.10.65 171.16.10.94 net 255.255.255.224 D) ip nat pool Todd 171.16.10.1 171.16.10.254 net 255.255.255.0
 
Answer & Explanation Answer: B) ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224

Explanation:

The command ip nat pool name creates the pool that hosts can use to get onto the global internet. What makes option B correct is that the range 171.16.10.65 through 171.16.10.94 includes 30 hosts, but the mask has to match 30 hosts as well, and that mask is 255.255.255.224 . Option C is wrong because there is a lowercase t in the pool name. Pool name are case sensitive.

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Q:

Which command will allow you to see real - time translations 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: C) debug ip nat

Explanation:

The command debug ip nat will show you in real time the translations occurring on your router.

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Q:

What command would you use to set an access list on a VTY line?

Answer

line vty 0 4


access - class 110 in 

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Subject: CCNA

Q:

What command would you use to create an extended access list that stops host 172.16.10.1 fro telnetting to host 172.16.30.5?

Answer

access - list 110 deny tcp host


172.16.10.1  host  172.16.30.5  eq  23


access - list 110 permit ip any any

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Subject: CCNA

Q:

You need to stop DoS attacks in real time and have a log of anyone who has tried to attack your network. What should you do your network?

A) Add more routers B) Use the auto secure command
C) Implement IDS/IPS D) Configure Naggle
 
Answer & Explanation Answer: C) Implement IDS/IPS

Explanation:

Implementing Intrusion Detection Service and Intrusion prevention Service (IDS/IPS) will help notify you and stop attacks in real time.

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