H12-831 practice questions, page 15 of 24, with answer review and explanations.
Question 71
When troubleshooting MSTP, you executed the display current-configuration command to obtain the configuration file of the device. Which of the following statements is wrong?
No matter whether the BPDU Tunnel is configured on the device or not, MSTP will not affect it correctly
Whether the MSTP port connected to the user terminal device is disabled or configured as an edge port
Check the port configuration to confirm whether the MSTP-enabled port is enabled with the protocol message sending command. Such as: bpdu enable
Check whether the port is added to the correct WLAN
Question 72
If the display current-configuration can reach the IS-IS configuration, but there is no IS-IS configuration in the display saved-configuration, what does it mean?
The IS-IS configuration that the Flash is running is not saved to the memory
The running IS-IS configuration in the memory has been saved to the Flash
No IS-IS command is entered
The running IS-IS configuration of the memory is not saved to the Flash
Question 73
Compared with the OSPFv2 message header, what fields are added in the OSPFv3 message header?
IPV6 Auth Type
Link ID
Instance ID
IPV6 Router ID
Question 74
What is the default aging time of the MAC address table of Huawei switches in seconds?
300
500
400
5
Question 75
Which of the following is wrong about DHCP Snooping?
DHCP Snooping can prevent illegal attacks by setting trusted ports (all interfaces are untrusted by default)
Enable DHCP Snooping globally, without any post parameters, the device only processes DHCPv4 messages by default
Enable the DHCP Snooping function in the interface view, then all the DHCP message command functions under the interface will take effect
Enable the DHCP Snooping function in the VLAN view, and the command function of DHCP messages belonging to the VLAN received by all interfaces of the device will take effect