Which of the following authentication methods are supported for Telnet users?
No authentication.
Password authentication.
MD5 authentication.
AAA local authentication.
Comprehensive and Detailed Explanation:
Huawei devices support the following Telnet authentication methods:
No authentication → Users can log in without a password. ✅
Password authentication → Requires a static password for access. ✅
AAA local authentication → Uses a centralized database for user authentication. ✅
❌ Incorrect Option:
MD5 authentication is NOT used in Telnet. SSH uses MD5 for key exchange, not Telnet.
✅ Reference: HCIA-Datacom Security Guide – Telnet & SSH Authentication
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