ベストHuawei H12-821_V1.0-ENU学習ガイドと問題集は2023年更新
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質問 71
Which protocol modules can BFD detection be linked with? (Multiple choice)
- A. BGP
- B. OSPF
- C. Static routing
- D. VRRP
正解: A,B,C,D
質問 72
Regarding BGP recognized arbitrary attributes, which of the following descriptions are correct? (Multiple choice)
- A. BGP router may not recognize
- B. Must be transmitted between BGP neighbors
- C. It is not required to be in the Update message, and it can be determined according to the specific situation whether to add to the Update message. All BGP routers must be identified
正解: A,C
質問 73
There are a large number of employees in an enterprise building, and they usually start to connect to the company's WLAN network in the lobby when they go to work. As each employee walks to their respective workstations, each person's mobile terminal roams through roaming to their respective network coverage areas.
In order to ensure that the IP address of each terminal is fixed as much as possible, what is the recommended approach?
- A. Without configuring VLAN Pool, configure a static IP address for each mobile terminal
- B. Configure VLAN Pool and configure the algorithm arbitrarily
- C. Configure VLAN Pool and configure Hash algorithm
- D. Configure VLAN Pool and configure sequential algorithm
正解: D
質問 74
Which of the following scenarios is not suitable for deploying interface policy routing?
- A. On the core switch, the traffic of mutual access between the internal network and the external network is dragged to the side-mounted security detection device
- B. Modify the traffic originated locally-hop
- C. On the core switch, draw the traffic from the internal network and external network to the AC device that is connected to the bypass
- D. In the scenario of multiple ISP outlets in the corporate network, different network segments of the intranet access the Internet through different ISP outlets
正解: B
質問 75
Among the commonly used routing policy tools for BGP, what can be used to filter routes? (Multiple choice)
- A. route-policy
- B. ip extcommunity-filter
- C. filter-policy
- D. traffic-policy
正解: A,B,C
質問 76
IGMP Snooping cannot solve the bandwidth waste of multicast traffic on the Layer 2 switch, that is, whether IGMP Snooping is configured on the Layer 2 switch has no effect on the multicast traffic.
- A. FALSE
- B. TRUE
正解: A
質問 77
Regarding the matters needing to be attention in configuring the Stub area, which of the following description of is true?
- A. The backbone area can be configured as a stub area
- B. The virtual link can traverse the stub area
- C. ASBR can exist in the stub area
- D. If an area is configured as a stub area, all routers in the area must be configured with stub area attributes
正解: D
質問 78
What are the routing tools that are not only used for the BGP routing protocol? (Multiple choice)
- A. IP-Prefix
- B. community-filter
- C. ACL
- D. as-path-filter
正解: A,C
質問 79
As shown in the figure, R1 and R2 form a VRRP backup group 1. By executing the vrrp vrid 1 vitual-ip () command on R1, you can make it the IP address owner, let R1 be the Master and R2 as the Backup.
正解:
解説:
192.168.1.254
質問 80
By default, the OSPF port cost is related to the port bandwidth. The calculation formula is bandwidth-reference/bandwidth. The cost is only calculated by OSPF and cannot be changed manually.
- A. FALSE
- B. TRUE
正解: A
質問 81
The routing strategy supports multiple operations on routing attributes. Please match the parameters of the following apply clauses with their functions.
正解:
解説:
質問 82
When IGMP query is configured with SSM Mapping rules, SSM services can only be provided to member hosts running IGMPv2
- A. FALSE
- B. TRUE
正解: A
質問 83
Which description of Route Policy is correct? (Multiple choice)
- A. The relationship between Route-Policy nodes is "or", as long as one node's filtering is passed, the Route-Policy can be passed
- B. A Route-Policy is composed of multiple nodes. A section can include multiple if-match and apply clauses
- C. The filter rule relationship of if-match clauses is "and", that is, all i-match clauses of the node must match
- D. The if-match clause is used to match the matching conditions of the node, and the apply clause is used to define the routing behavior that passes the filter.
正解: A,B,C,D
質問 84
After dividing an interface of the firewall into the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone
- A. TRUE
- B. FALSE
正解: A
質問 85
The security zones created by Huawei firewall by default are untrust, dmz, and local (). (All lowercase)
正解:
解説:
trust
質問 86
In a large-scale WLAN three-layer network, which of the following statements about the description of the DHCP server is wrong? (Multiple choice)
- A. In a large-scale WLAN network, it is recommended to deploy an independent DHCP server
- B. In a large-scale WLAN network, the AP can obtain the AC's IP address from the DHCP server through the option43 parameter
- C. In a large VLAN network, the AP can obtain the AC's IP address from the DHCP server through the option60 parameter
- D. In a large-scale WLAN network, it is generally recommended to use AC as a DHCP server
正解: C,D
質問 87
The RSTP protocol provides a variety of protection functions. For example, when the edge port is configured in the protected state, after the edge port receives the BPDU message, what is the processing method?
- A. Get relevant information after BPDU message
- B. Close the port
- C. Directly discard BPDU packets
- D. Forward BPDU packets as required
正解: B
質問 88
Which of the following strategies or tools cannot be applied to OSPF?
- A. as-path filter
- B. access-list
- C. prefix-list
- D. route-policy
正解: A
質問 89
Regarding RP, which of the following statements is correct? (Multiple choice)
- A. RP is the root of the RPT tree
- B. All routers in the PIM-SM network need to know the location of the RP
- C. RP is elected by the BSR router
- D. RP in PIM-SM network can only be specified manually
正解: A,B
質問 90
NAC (Network Access Control1) network access control includes three authentication methods. () Authentication, MAC authentication and Porta authentication. (If English words are involved, please use capital letters)
正解:
解説:
802.1X
質問 91
The advantages of address translation technology do not include:
- A. Address translation can shield users on the internal network and improve the security of the internal network
- B. Address translation can handle the case of IP header encryption
- C. Address translation can make many hosts in the internal LAN share a IP address to access the Internet
- D. Address translation can enable internal network users (private IP addresses) to access the same Internet
正解: B
質問 92
Which of the following statements about MSTP is correct? (Multiple choice)
- A. MSTP supports compatible operation with RSTP
- B. Compared with RSTP.MSTP has more port roles
- C. The BPDU format of MSTP is the same as RSTP
- D. MSTP can achieve load sharing of traffic between different LANs
正解: A,B,D
質問 93
After the IGMP proxy device receives a report message from a multicast group, if it does not find the corresponding multicast group, the IGMP proxy device will send a report message for the multicast group to the access device, and send it to the access device. Add the multicast group to the forwarding table.
- A. FALSE
- B. TRUE
正解: A
質問 94
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