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Q:

Suppose you have a customer who has a central HQ and six branch offices. The customer anticipates adding six more branches in the near future. It  whishes to implement  a WAN technology that will allow the branches to economically connect to HQ and you have no free ports on the HQ router. which of the following would you recommend?

A) PPP B) HDLC
C) Frame Relay D) ISDN
 
Answer & Explanation Answer: C) Frame Relay

Explanation:

The key is "there are no free ports" on your router. Only Frame Relay can provide a connection to multiple locations with one interface, and in an economical manner no less.

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Q:

You want to ping the loopback address of your IPv6 local host. What will you type?

A) Ping 127.0.0.1 B) Ping 0.0.0.0
C) Ping ::1 D) trace 0.0. :: 1
 
Answer & Explanation Answer: C) Ping ::1

Explanation:

The loop back address with IPv4 is 127.0.0.1 . With IPv6, that address is ::1

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Q:

How many bits are in an IPv6 address field?

A) 24 B) 16
C) 32 D) 128
 
Answer & Explanation Answer: B) 16

Explanation:

There are 16 bits (four hex characters) in an IPv6 field.

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Q:

How many non- overlapping channels are available with 802.11b?

A) 3 B) 12
C) 23 D) 40
 
Answer & Explanation Answer: A) 3

Explanation:

The IEEE 802.11b standard provides three non-overlapping channels.

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Q:

What type of address translation can use only one address to allow thousands of hosts to be translated globally?

Answer

Port Address Translation (PAT), also called NAT Overload

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Subject: CCNA

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:

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