When a Huawei router serves as an SSH client and attempts to log in to another Huawei router, the login fails.
It is suspected that the SSH server configuration is incorrect. Which of the following causes is the most impossible for the server fault?

• A.The SSH protocol is not bound in the VTY user interface view.
• B.The user service type, authentication type, and user service type are not configured.
• C.The SSH server and client have inconsistent versions.
• D.The SSH first-time authentication function is disabled.

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Currently, to which of the following modes does network design conform? (Multiple Choice)

• A.Standard
• B.Automatic
• C.Modular
• D.Hierarchical
• E.Modern

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During follow-up operations of the structured network troubleshooting process, which of the following parties does not require advertisement of information?

• A.Parties affected by the fault
• B.Authorization parties in each phase of troubleshooting
• C.Users who are interested in the root cause for the fault
• D.Other vendors and service providers

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Which of the following statements is not included in network security optimization?

• A.Border security
• B.Log management
• C.Management security
• D.Access control

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Which of the following regulations does not belong to the onsite behavior regulations during the service process?

• A.Operation regulations
• B.Rights regulations
• C.Preparation regulations
• D.Attitude regulations

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