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Question 205 - N10-008 discussion

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A network engineer receives the following when connecting to a switch to configure a port:

Which of the following is the MOST likely cause for the failure?

A.
The network engineer is using the wrong protocol
Answers
A.
The network engineer is using the wrong protocol
B.
The network engineer does not have permission to configure the device
Answers
B.
The network engineer does not have permission to configure the device
C.
SNMP has been secured with an ACL
Answers
C.
SNMP has been secured with an ACL
D.
The switchport the engineer is trying to configure is down
Answers
D.
The switchport the engineer is trying to configure is down
Suggested answer: A

Explanation:

The error message in the image indicates that the network engineer is trying to connect to theswitch using telnet, which is a protocol that allows remote access to a device over a network1.However, telnet is an insecure protocol that sends data in plain text, which can be easilyintercepted and compromised by attackers1.

Therefore, most modern switches do not support telnet by default, and require a more secureprotocol such as SSH (Secure Shell), which encrypts the data and provides authentication andintegrity2.To connect to the switch using SSH, the network engineer needs to use a different command,such as ''ssh 10.1.200.1'' instead of ''telnet 10.1.200.1''.Alternatively, the network engineer can use a console cable to connect directly to the switchand configure it locally3.The other options are less likely to cause the error message, as they would result in differentmessages or symptoms, such as ''Access denied'', ''Timeout'', or ''No response''.Reference:1: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, p. 5742: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, p. 5753: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 2: Network Devices, p. 64

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asked 02/10/2024
Faria Sah
37 questions
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