Searching for "TELNET"

Q:

Which layer 4 protocol is used for a Telnet connection?

A) UDP B) IP
C) TCP D) TCP/IP
 
Answer & Explanation Answer: C) TCP

Explanation:

Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.

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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

Q:

If you wanted to deny all Telnet connections to only network 192.168.10.0, which command could you use?

A) access-list 100 deny tcp 192.168.10.0 255.255.255.0 eq telnet B) access-list 100 deny tcp 192.168.10.0 0.255.255.255 eq telnet
C) access - list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23 D) access - list 100 deny 192.168.10.0 0.0.0.255 any eq 23
 
Answer & Explanation Answer: C) access - list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23

Explanation:

The extended access list ranges are 100 - 199 and 2000 - 2699, so the access-list number of 100 is valid. Telnet uses TCP, so the protocol TCP is valid. Now you just need to look for the source and destination address. only the third option has the correct sequence of parameters. Option B may work, but the question specifically states "only" to network 192.168.10.0, and the wildcard in option B is too broad.

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Filed Under: CCNA

Q:

You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?

A) You must type the show ip rip command first B) IP addressing on the network is incorrect
C) You must use the terminal monitor command D) Debug output is sent only to the console.
 
Answer & Explanation Answer: C) You must use the terminal monitor command

Explanation:

To see console messages through your Telnet session, you must enter the terminal monitor command.

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Filed Under: CCNA

Q:

If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?

A) Tab+spacebar B) Ctrl+X, then 6
C) Ctrl+Shift+X, then 6 D) Ctrl+Shift+6, then X
 
Answer & Explanation Answer: D) Ctrl+Shift+6, then X

Explanation:

To keep open one or more Telnet sessions, use the Ctrl+Shift+6 and then X keystroke combination.

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Filed Under: CCNA

Q:

If you use either Telnet or FTP, what layer are you using to generate the data?

A) Application B) Presentation
C) Session D) Transport
 
Answer & Explanation Answer: A) Application

Explanation:

Both FTP and Telnet use TCP at the Transport layer; however, they both are Application layer protocols, so the Application layer is the best answer for this question.

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Filed Under: CCNA

Q:

What is TELNET?

Answer

TELNET is a client-server application that allows a user to log on to a remote machine, giving the user access to the remote system. TELNET is an abbreviation of terminal Network.

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