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

0 2198
Q:

Which type of address is used just like a regular public routable address in IPv4?

Answer

Global unicast

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1 2187
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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0 2143
Q:

What is the command to copy the startup-config filre to DRAM?

Answer

copy start run

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1 2139
Q:

What is the Class C private IP address space?

Answer

192.168.0.0 through 192.168.255.255

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0 2123
Q:

You copy a configuration from a network host to a router's RAM. The configuration looks correct, yet it is not working at all. What could the problem be?

A) You copied the wrong configuraion into RAM B) You copied the configuration into flash memory instead
C) The copy did not override the shutdown command in running-config D) The IOS became corrupted after the copy command was initiated
 
Answer & Explanation Answer: C) The copy did not override the shutdown command in running-config

Explanation:

Since the configuration looks correct, you probably didn't screw up the copy job. However , when you perform a copy from a network host to a router , the interfaces are automatically shut dow and need to be manually enabled with the no shutdown command.

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0 2047
Q:

Which command would you use to apply an access list to a router interface?

A) ip access - list 101 out B) acces - list ip 101 in
C) ip access - group 101 in D) access - group ip 101 in
 
Answer & Explanation Answer: C) ip access - group 101 in

Explanation:

To apply an access list , the proper command is ip access - group 101 in.

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0 2030
Q:

What is the 127.0.0.1 address used for?

Answer

Loop back or diagnostics

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Subject: CCNA

0 1993