New H12-261_V3.0-ENU Dumps For Preparing HCIE-R&S Certified Huawei Exam Well
Updated H12-261_V3.0-ENU Dumps Questions Are Available [2022] For Passing Huawei Exam
NEW QUESTION 127
Which of the following role of Link-LSA in OSPFv3 not include?
- A. Advertise the IPv6 prefix list of this port to other routers on the link
- B. Notify the router's per-port ID to other routers on the link
- C. Advertise the link-local address of this interface to other routers on the link
- D. Notify other routers on the link of the options set in the Network LSA originating from this link
Answer: B
NEW QUESTION 128
A routing tool can define multiple entries.
Which tool will automatically add a deny-any entry at the end of the configuration? (Multiple Choice)
- A. IP-prefix
- B. Route policy
- C. Community-tilter
- D. AS-path-filter
Answer: A,B,C,D
NEW QUESTION 129
Which of the following statements about the BFD single-arm echo function are correct? (Multiple Choice)
- A. BFD single-arm echo function is applicable to scenarios where one device supports BFD and the other device does not.
- B. The default destination IP address of the BFD single-arm echo function protocol packet is 224.0.0.184.
- C. The BFD single-arm echo function must be configured with a local identifier and a remote identifier.
- D. After the BFD single-arm echo function is enabled, the destination IP and source IP of the BFD packets are the same.
Answer: A,D
NEW QUESTION 130
What are the comparison items of the main switch election in the stack? (Multiple questions)
- A. Running status
- B. MAC address
- C. Stacking priority
- D. Stack ID
Answer: A,B,C
NEW QUESTION 131
Which of the following descriptions about the differences between IGMP versions are correct? (Multiple choice)
- A. IGMPv1/v2 cannot elect a querier by itself, while IGMPv3 can
- B. IGMPv1 does not support specific group queries, while IGMPv2 supports
- C. For members to leave, IGMPv2/v3 can leave actively, but IGMPv1 cannot
- D. IGMPv1/v2/v3 cannot support the SSM model
Answer: B,C
NEW QUESTION 132
Which of the following statements about Link-LSA of OSPFv3 is correct?
- A. If the Prefixoptions field of a Prefix of Link-LSA is 0x00, the Prefix will not be included in the IPv6 unicast calculation.
- B. The Option field exists in the header of the LSA, not in the data area of the Link-LSA
- C. It contains not only the link-local address of this interface, but also all IPv6 prefixes on this interface.
- D. It contains not only the link-local address of this interface, but also all the IPV6 prefixes in the same area on this router.
Answer: C
NEW QUESTION 133
As shown in the following figure, R1 and R2 establish the neighbor relationship of Level2. The key configuration is as follows. Which of the following statement about the R2 route entry is correct? (Multiple choice)
- A. 2019::/64 router will appear in the IP routing table.
- B. 2020::/64 router will appear in the IP routing table.
- C. 2021::/64 router will appear in the IP routing table.
- D. 2022::/64 router will appear in the IP routing table.
Answer: A,B,D
NEW QUESTION 134
The Next Header field information only exists in the IPv6 message and is used to indicate whether there is an extended header in IPv6.
- A. True
- B. False
Answer: B
NEW QUESTION 135
The IPv6 link-local address can be generated through stateless automatic configuration.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 136
When you troubleshoot a LAN that has Huawei devices deployed, you find that there are many unicast frames with unknown source MAC addresses in the LAN. What is the greatest harm that many unknown source MAC address unicast frames will cause to the switch?
- A. Occupy the memory of cached frames
- B. Consume available bandwidth
- C. Occupy TCAM entries
- D. Increase the power consumption of the power supply
- E. Consume available MAC address entries in the system
Answer: E
NEW QUESTION 137
Which of the following statements about MUX VLAN are correct? (Multiple choice)
- A. Separate VIAN can communicate with all VLANs in MUXVLAN
- B. Each Separate VLAN must be bound to a Principal VLAN
- C. Each Group VLAN must be bound to a Principal VLAN
- D. Principal VLAN can communicate with all VLANs in MUX VLAN
Answer: B,C,D
NEW QUESTION 138
LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not an LDP message type?
- A. Discovery
- B. Conversation message
- C. Label exchange messages
- D. Announcement
Answer: C
NEW QUESTION 139
Which of the following descriptions about MP-BGP is wrong?
- A. A complete MP_REACH_NLRI attribute structure contains address family, next hop and previous level information.
- B. MP-BGP can be used to distribute labels.
- C. The MP_UNREACH_NLRI of the update message does not contain the path attribute.
- D. MP_REACH_NLRI and MP_UNREACIH_NLRI are optional transitional attributes.
Answer: D
NEW QUESTION 140
Which scenario can use AS-path -filter?
- A. If-match clause in Route-policy
- B. Filter the route sent to the BGP neighbor according to the AS_PATH attribute carried in the route. For example, the command peer x.x.x.x as-path-filter export
- C. Filter the route received to the BGP neighbor according to the AS_PATH attribute carried in the route. For example, the command peer x.x.x.x as-path-filter import
- D. apply clause in Route-policy
Answer: A,B,C
NEW QUESTION 141
As shown in the figure, three switches SW1, SW2 and SW3, where SW1 is the root bridge, the link between SW1 and SW2 is congested, and SW2 cannot receive the configuration BPDU sent by the root bridge. Which spanning tree protection mechanism does the administrator need to configure to prevent link congestion?
- A. BPDU protection
- B. Root protection
- C. Loop protection
- D. TC-BPDU protection
Answer: C
NEW QUESTION 142
As shown in the figure, which of the following statement is correct? (Multiple Choice)
- A. If the R2 Ethernet0/0/0 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.21.2.
- B. If the R2 Ethernet 0/0/1 interface is down, the R1 BFD session can quickly detect the fault and notify R1 to make the OSPF neighbor relationship down.
- C. If the R2 Ethernet 0/0/1 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.12.2.
- D. The OSPF status changes to FULL, which triggers the BFD session.
- E. If the BFD function is disabled on R2, the BFD session on R1 will be down. This will result in the ospf neighbor relationship down.
Answer: B,E
NEW QUESTION 143
If we configure a VPN instance on the router, if we need to view the VPN route on the Huawei router, which of the following commands should be used?
- A. display ip routing-table vpn-instance vpn -instance-name
- B. display
- C. display
- D. display vpn routing-table ip vpn-instance
Answer: A
NEW QUESTION 144
BGP can only auto-aggregate routes whose source is Incomplete.
- A. False
- B. True
Answer: B
NEW QUESTION 145
Check the IGMP configuration of the connection on the router RTA as follows, which of the following statement about the RTA operation information is wrong?
- A. The interface IP address is 192.168.1.1
- B. The maximum response time for query messages is 10 seconds
- C. The query message interval for a specific group is 60 seconds
- D. IGMP protocol version is 2
Answer: C
NEW QUESTION 146
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