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質問 1：
There is an existing wireless access controller as a DHCP relay. If the DHCP client cannot dynamically obtain an IP address, which of the following reasons may be the cause? (Multiple choice)
A. In the global view of the wireless access controller, no DHCP server group is bound
B. In the interface view of the wireless access controller, no dhcp select relay is configured
C. In the interface view of the wireless access controller, no proxy DHCP server is specified
D. In the global view of the wireless access controller, the DHCP server function is not enabled
正解：A,B,C,D
質問 2：
In the hardware module of a frame device, the main control board provides the control plane and management plane of the entire system. Which of the following functions does the management plane not include?
A. Environmental monitoring
B. System loading
C. Business scheduling
D. System upgrade
正解：C
質問 3：
There is a message in the BGP protocol that is periodically sent between BCP neighbors to maintain the neighbor relationship. What is the message?
A. Keepalive
B. Hello
C. Update
D. Open
正解：A
質問 4：
RTA is the source DR router, and RIB is the RP router. The multicast source sends group blessing data to RTA, but the group blessing source Source registered with it through the PIMRegister message cannot be seen on the RIB. The possible reasons are as follows: (Multiple choice)
A. The RP elected by RTA is not RTB
B. There is no single-finger route from RTB to RTA, which causes RIB to fail the RPF check of the source
C. The multicast network is statically configured with RP, but the RTA router is not statically configured with RP
D. The multicast network dynamically elects RP, but RTA fails to check the RPF of BSR
正解：A,B,C,D
質問 5：
The 802.1X authentication system supports two authentication methods, EAP relay and EAP termination, to complete the authentication between the device and the authentication server.
Which of the following descriptions about the two authentication methods are wrong? (Multiple choice)
A. The EAP termination method supports three authentication methods: EAP-TLS, EAP-TTLS and EAP-PEAP
B. The authentication server in EAP relay mode must support EAP
C. The RADIUS server of the AP termination method does not support PAP and CHAP authentication, so the server needs to be upgraded
D. The device-side processing of EAP relay mode is simpler and supports more authentication methods
正解：A,C
There is an existing wireless access controller as a DHCP relay. If the DHCP client cannot dynamically obtain an IP address, which of the following reasons may be the cause? (Multiple choice)
A. In the global view of the wireless access controller, no DHCP server group is bound
B. In the interface view of the wireless access controller, no dhcp select relay is configured
C. In the interface view of the wireless access controller, no proxy DHCP server is specified
D. In the global view of the wireless access controller, the DHCP server function is not enabled
正解：A,B,C,D
質問 2：
In the hardware module of a frame device, the main control board provides the control plane and management plane of the entire system. Which of the following functions does the management plane not include?
A. Environmental monitoring
B. System loading
C. Business scheduling
D. System upgrade
正解：C
質問 3：
There is a message in the BGP protocol that is periodically sent between BCP neighbors to maintain the neighbor relationship. What is the message?
A. Keepalive
B. Hello
C. Update
D. Open
正解：A
質問 4：
RTA is the source DR router, and RIB is the RP router. The multicast source sends group blessing data to RTA, but the group blessing source Source registered with it through the PIMRegister message cannot be seen on the RIB. The possible reasons are as follows: (Multiple choice)
A. The RP elected by RTA is not RTB
B. There is no single-finger route from RTB to RTA, which causes RIB to fail the RPF check of the source
C. The multicast network is statically configured with RP, but the RTA router is not statically configured with RP
D. The multicast network dynamically elects RP, but RTA fails to check the RPF of BSR
正解：A,B,C,D
質問 5：
The 802.1X authentication system supports two authentication methods, EAP relay and EAP termination, to complete the authentication between the device and the authentication server.
Which of the following descriptions about the two authentication methods are wrong? (Multiple choice)
A. The EAP termination method supports three authentication methods: EAP-TLS, EAP-TTLS and EAP-PEAP
B. The authentication server in EAP relay mode must support EAP
C. The RADIUS server of the AP termination method does not support PAP and CHAP authentication, so the server needs to be upgraded
D. The device-side processing of EAP relay mode is simpler and supports more authentication methods
正解：A,C
宫坂** -
試験に合格するために必須の基本知識がこのH12-821_V1.0-ENU問題集一つでで短時間に修得できると思います。合格することもできました。