Regarding the telnet management of AC6605, which of the following statement is wrong?

Question

Options

• ATelnet is a method for remote management of AC
• BThe telnet service is disabled by default on the AC
• CThe telnet service can be configured separately on the wired side and the wireless side of the AC
• DTelnet can be authenticated based on user name and password, and the transmission is

• A
  2% (1)
• B
  6% (3)
• C
  12% (6)
• D
  81% (42)

Explanation

Option D is the wrong statement because Telnet does not encrypt data in transit - credentials and all session traffic are transmitted in plaintext, making it inherently insecure. The answer choice appears to claim that transmission is secure or encrypted, which is false; that distinction belongs to SSH, not Telnet.

Option A is correct: Telnet is a standard remote management protocol used on network devices, including Huawei ACs. Option B is correct: Huawei devices like the AC6605 disable Telnet by default as a security precaution, requiring an administrator to explicitly enable it. Option C is correct: the AC6605 allows Telnet to be enabled or disabled independently on its wired and wireless interfaces, giving administrators granular control.

Memory tip: Associate Telnet with "transparent" - everything you send goes through in the open, no encryption, no protection. When an exam option implies Telnet transmits data securely, that is always the wrong answer.

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