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 CCNA Questions

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Q:

The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

A) RAM should be erased and the router restarted B) Flash should be erased and the router restarted
C) NVRAM should be erased and the router restarted D) The new configuration should be entered and saved
 
Answer & Explanation Answer: C) NVRAM should be erased and the router restarted

Explanation:

Before you start to configure the router, you should erase the NVRAM with the erase startup-config command and then reload the router using the reload command.

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Q:

When a PC sends a packet to another PC in a remote network, what destination IP address and MAC address will be in the frame that it sends to its default gateway?

Answer

It will use the gateway interface MAC at L2 and the actual destination IP at L3. 

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Q:

Pat Address Translation is also called what?

A) NAT Fast B) NAT Static
C) NAT Overload D) Overloading Static
 
Answer & Explanation Answer: C) NAT Overload

Explanation:

Another term for port Address Translation is NAT Overload because that is the keyword used to enable port address translation.

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Q:

What is the address range of a Class B network address in binary?

A) 01xxxxxx B) 0xxxxxxx
C) 10xxxxxx D) 110xxxxx
 
Answer & Explanation Answer: C) 10xxxxxx

Explanation:

The range of a  Class B network address is 128 - 191. This makes our binary range 10xxxxxx.

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Q:

If you wanted administrators to see a message when logging into the router, which command would you use?

A) message banner motd B) banner message motd
C) banner motd D) message motd
 
Answer & Explanation Answer: C) banner motd

Explanation:

The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command banner motd.

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Q:

Which IEEE committee has been sanctioned by WAP and is called WPA2?

Answer

The IEEE 802.11i standard has been sanctioned by WPA and is termed WPA version 2.

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Q:

Which  of the following commands sets the secret password to Cisco?

A) enable secret password Cisco B) enable secret cisco
C) enable secret Cisco D) enable password Cisco
 
Answer & Explanation Answer: C) enable secret Cisco

Explanation:
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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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