Which of the following stages is not included in the process of PPPoE session establishment and termination?

• A.Session phase
• B.Discovery phase
• C.Data Forwarding Phase
• D.Session termination phase

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Which of the following statements about the function of STP protocol Forward Delay is correct?

• A.Improve the convergence speed of STP
• B.Increase the life time of BPDU to ensure that the configuration BPDU can be forwarded to more switches
• C.A delay is required when switching between the Blocking state and the Disabled state
• D.Reduce the time interval for sending BPDUs
• E.Prevent temporary loops

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The configuration information of a certain router is shown in the figure, which of the following statements is correct? (Multiple choice)

• A.The domain name huawei does not use the billing plan
• B.The authorization method adopted by the domain name huawei is local authorization
• C.The authentication method adopted by the domain name huawei is local authentication
• D.Use the username huawei for authentication, and the password needs to be 654321

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The administrator configures OSPF on a certain router, but no loopback interface is configured on this router. What is the correct description of the Router ID below?

• A.The IP address of the router's management interface will become the Router ID
• B.The maximum IP address of the router's physical interface will become the Router ID
• C.The minimum IP address of the router's physical interface will become the Router ID
• D.The priority of the router will become the Router ID

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Which WLAN policies support the open link authentication method? (Multiple choice)

• A.WPA2-PSK
• B.WPA
• C.WPA2-802.1x
• D.WEP

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