QUESTION: 65

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?

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

Answer(s): D

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QUESTION: 66

The essence of SDN is to construct a brain for a network and achieve optimal gbbal traffic through the global view and centralized control.

TRUE
FALSE

Answer(s): A

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QUESTION: 67

Current enterprise networks usually use OSPF as the routing protocol. What precautions are there when OSPF is used? (Multiple Choice)

Determine that the backbone area will not split.
Check whether secondary optimal routes exist on the network according to OSPF route selection rules.
Check whether all non-backbone areas are correctly and reliably connected to the backbone area.
Check the OSPF network topology and ensure that no loop exists when OSPF routes are being calculated.
Verify that OSPF costs can correctly demonstrate the actual bandwidth of links at more than 100 Mbit/s.

Answer(s): A,B,C,E

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QUESTION: 68

Which of the following operations should be performed preferentially for Telnet login failure troubleshooting?

Check whether the client can ping the server.
Check whether the number of login users reaches the upper limit.
Check whether an ACL is configured in the VTY user interface view.
Check whether the access protocol is correctly configured in the VTY user interface view.

Answer(s): A

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