What Does Telnet Mean in 200-301?
Quick Definition
An unencrypted remote management protocol that should be replaced by SSH.
Full Definition
Telnet is a legacy remote management protocol that uses TCP port 23. It provides remote CLI access to network devices but transmits all data — including usernames and passwords — in plaintext. Telnet is deprecated for production use; SSH should always be used instead. In lab environments, Telnet may be used for testing TCP connectivity to specific ports.
Exam Trap — Don't Get Fooled
On the CCNA exam, if a question asks which protocol is more secure for remote management, the answer is SSH (not Telnet). Telnet = unencrypted, SSH = encrypted.
Related 200-301 Terms
Frequently Asked Questions
What does Telnet mean on the 200-301 exam?
Telnet is a legacy remote management protocol that uses TCP port 23. It provides remote CLI access to network devices but transmits all data — including usernames and passwords — in plaintext. Telnet is deprecated for production use; SSH should always be used instead. In lab environments, Telnet may be used for testing TCP connectivity to specific ports.
How does Telnet appear as a trap on the 200-301?
On the CCNA exam, if a question asks which protocol is more secure for remote management, the answer is SSH (not Telnet). Telnet = unencrypted, SSH = encrypted.
How important is Telnet on the 200-301 exam?
Telnet falls under the Security domain of the 200-301 exam. Understanding it in context with related terms like ssh and aaa is essential for answering scenario-based questions correctly.