When the payload is an ICMPv6 packet, if the extended header is not considered, what is the value of the Next Header field in the IPv6 header?

• A.58
• B.68
• C.78
• D.55

Comment: *

Name: *

Email: *

Verification: *

The security zones created by Huawei firewall by default are untrust, dmz, and local (). (All lowercase)

Comment: *

Name: *

Email: *

Verification: *

Regarding the OSPF multi-process description, which is wrong?

• A.An interface of a router can only belong to one OSPF process
• B.The routing interaction between different OSPF processes is equivalent to the routing interaction between different routing protocols
• C.Different OSPF routers establish neighbors, and the process numbers must be the same
• D.Multiple different OSPF processes can run on the same router, and they do not affect each other and are independent of each other

Comment: *

Name: *

Email: *

Verification: *

In the RSTP network shown in the figure \. According to the configuration of the SWC in the figure, it can be judged that the type of the E0/1 port of the SWC is (). (Multiple choice)

• A.Edge port
• B.Designated port
• C.Root port
• D.Preparation port

Comment: *

Name: *

Email: *

Verification: *

It is possible to prevent the HSB backup channel between the active and standby ACs from being interrupted and unperceivable through mechanisms such as sending active and standby service packets and retransmissions.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *