H12-821_V1.0-ENUのPDF問題集で2025年02月26日最近更新された問題
H12-821_V1.0-ENU試験問題有効なH12-821_V1.0-ENU問題集PDF
質問 # 140
IGMP SSMM APPING does not process IGMPv3 report messages. To ensure that hosts running any version of IGMP on the same network segment can obtain SSM services, it is necessary to run IGMPv3 on the interface of the multicast router connected to the network segment where the member hosts are located.
- A. TRUE
- B. FALSE
正解：A
質問 # 141
The correct description about the prefix list is? (Multiple choice)
- A. The prefix list can be used for packet filtering
- B. The prefix list is used to filter the IP prefix, which can match the prefix number and prefix length at the same time
- C. The prefix list is used to filter IP prefixes, and cannot match the prefix number and prefix length at the same time
- D. The prefix list cannot be used for packet filtering
正解：B、D
質問 # 142
Similar to 0SPF, the two routers establishing a BGP peer relationship must be directly connected.
- A. FALSE
- B. TRUE
正解：A
質問 # 143
Which of the following statement about OSPF protocol packets is incorrect?
- A. The OSPF protocol uses five types of messages to complete the transmission of routing information
- B. OSPF packets are encapsulated in UDP packets, and the port number is 89
- C. All OSPF packet headers carry the Router-ID field
- D. The header format of all OSPF packets is the same
正解：B
質問 # 144
R1, R2, R3, and R4 run OSPF. The area IDs are as shown in the figure. Please match the LSA types and area IDs that exist in each area.
正解：
解説：
質問 # 145
RTA is the source DR router and RIB is the RP router. The multicast source sends multicast data to RTA, but the multicast source registered with it through the PIMRegister message cannot be seen on the RIB. What are the possible reasons? (Multiple choice)
- A. The multicast network dynamically elects the RP, but the RTA's RPF check on the BSR fails
- B. There is no single-pointer route from RTB to RTA, which causes RIB's RPF check of the source to fail
- C. The RP elected by RTA is not RTB
- D. The multicast network is statically configured with RP, but the RTA router is not statically configured with RP
正解：A、B、C、D
質問 # 146
Because multicast data forwarding relies on routing table entries, problems such as loops and suboptimal paths will not occur during the forwarding process.
- A. FALSE
- B. TRUE
正解：A
質問 # 147
Which of the following descriptions of the AC roaming group is wrong? (Multiple choice)
- A. Master Contoller must be an AC in the roaming group
- B. STA can only roam between ACs in the same roaming group
- C. The AC of the roaming group use DTLS extended tunnels to encapsulate and transmit roaming related information
- D. The AC of the roaming group needs to be deployed-Master Controller
正解：A、C
質問 # 148
In the IS-IS broadcast network, which multicast MAC address does the Level-1 router use as the destination address for sending IIH?
- A. 0100-5E00-0001
- B. 0180-c200-0015
- C. 0180-c200-0014
- D. 0180-c200-0000
正解：C
質問 # 149
When a device running BGP finds that its AS number is in AS_Path after receiving a BGP route, which of the following processing methods will it adopt?
- A. Direct forwarding to peers
- B. Delete your own AS number in AS_Path and forward it
- C. Discard directly
- D. Notify the neighbors through the Notification message first, and then discard the route
正解：C
質問 # 150
The BGP protocol is an inter-domain routing protocol. Which of the following description of the protocol is correct? (Multiple choice)
- A. Support automatic discovery of neighbors
- B. Neighbor authentication is not supported
- C. Support rich routing strategies
- D. The BGP protocol uses a reliable transport protocol
正解：C、D
質問 # 151
Which descriptions are correct about the IPv6 stateless auto-configuration of addresses through NDP? (Multiple choice)
- A. In the process of stateless address configuration, two DAD detections are used to detect whether the link-local address conflicts
- B. In the process of stateless address configuration, except that DAD detection requires the exchange of NS and NA messages, other processes only need the participation of RA and RS messages
- C. In the RA message transmitted during the stateless address configuration process, the M-bit is set to 0
- D. The premise that a device can configure an address statelessly is that both interacting devices have generated a link-local address.
正解：B、C、D
質問 # 152
After establishing a neighbor relationship between the two DRother routers R1 and 2 in the MA network, execute the [R1] diaplay ospf peer command in R1. At this time, the neighbor status of R2 is displayed as Loading.
- A. FALSE
- B. TRUE
正解：A
質問 # 153
In the USG series firewall, what is the security priority of the DMZ zone?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 154
As shown in the figure, OSPF is enabled on all interfaces of the router, the cost value of the link is marked in the figure, and the 0 interface of R2 Loopback0 is advertised in area O, then in area 1, both R2 and R3 will transmit 10.0 in the form of Type3LSA .2.2/32 routing information
- A. TRUE
- B. FALSE
正解：A
質問 # 155
A router running IS-IS outputs the information as shown in figure, which of the following statements is correct? (Multiple choice)
- A. The GE0/0/0 interface of this router only establishes the neighbor relationship of Leve1-1
- B. The S4/0/0 interface of this router only establishes the neighbor relationship of Leve1-1
- C. The S4/0/0 interface of this router has established the neighbor relationships of Leve1-1 and Level-2 at the same time
- D. The GE0/0/0 interface of this router has established a neighbor relationship between Leve1-1 and Leve1-2 at the same time
正解：C、D
質問 # 156
As shown in the figure below, the firewall receives a message from PC1 to PC2, which of the following statements is correct?
- A. The default security policy of the firewall is match all, and the action is Deny
- B. The message will match the new security policy rule2, and the firewall will forward the message
- C. The message will match the security policy rule 1
- D. The packet cannot match the security policies rule1 and rule2, it will match the default policy of the firewall, and the firewall will forward the packet
正解：B
質問 # 157
Using the authentication in BGP configuration, how to configure?
- A. The same MD5 password must be used between a pair of BGP peers
- B. All routers in the same AS must use the same password
- C. All routers in the AS must use the same password
- D. All BGP peers on a router must use the same password
正解：A
質問 # 158
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