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You are unsuccessful in telnetting into a remote device What could...

This question belongs to Networking Managing A Cisco Internetwork
Managing a Cisco Internetwork
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You are unsuccessful in telnetting into a remote device. What could the problem be?
1. IP addresses are incorrect.
2. Access control list is filtering Telnet.
3. There is a defective serial cable.
4. The VTY password is missing.

Answer & Solution
Correct Answer: Option C
The best answers, the ones you need to remember, are that either an access control list is filtering the Telnet session or the VTY password is not set on the remote device.
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1. IP addresses are incorrect.
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4. The VTY password is missing.
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