[UPDATED 2021] Huawei H12-261-ENU Questions Prepare with Free Demo of PDF
NEW 2021 Certification Sample Questions H12-261-ENU Dumps & Practice Exam
NEW QUESTION 235
Regarding the certification of the ISIS protocol, which statements are correct? (Multiple Choice)
- A. After the area authentication is configured, the IIH, SNP, and LSP sent by the router must carry the authentication.
- B. Interface authentication can implement hello packet authentication for Level-1 and Level-2.
- C. After the interface authentication is configured, the IIH sent by the router must carry the authentication TLV.
- D. Two routers are configured with regional authentication and interface authentication, and the passwords are the same. Then two routers can establish neighbor relationships.
Answer: B,C
NEW QUESTION 236
There are two types of community-filter: basic community attribute filters and advanced community attribute filters. Which of the following filtering tools makes the advanced community attribute filter more flexible than the basic community attribute filter?
- A. IP-prefix
- B. ACL
- C. AS-path-filter
- D. Regular-expression
Answer: D
NEW QUESTION 237
Which of the following statements about RADIUS is correct?
- A. RADIUS protocol authentication, authorization and audit separation.
- B. MAC authentication does not require username and password, so RADIUS authentication user identity cannot be used.
- C. RADIUS supports both wired and wireless access methods.
- D. RADIUS authentication and Portal authentication cannot be combined because the Portal server can be used to authenticate users when Portal authentication is deployed.
Answer: C
NEW QUESTION 238
As shown in the figure, the A department of branch 1 can access the Internet, but the B department can only use the encrypted VPN to access the headquarters resources. You can configure the NAT policy on the export device so that department A can access the Internet and configure IPsec VPN (ESP protocol) for department B + tunnel mode method to allow it to access the headquarters.
- A. False
- B. True
Answer: B
NEW QUESTION 239
In the following topology, R1 can access the Internet through R2 and R3. The EBGP connections are established between R1 and R2, R1 and R3. R2 and R3 belong to the same AS. The default route is advertised through BGP. The traffic that R1 is required to access the Internet is preferably R2. Which of the following practices can be achieved? (Multiple Choice)
- A. R2 specifies that the peer R1 sets the MED attribute to 150 in the export direction.
- B. R1 specifies that the peer R3 sets the MED attribute to 150 in the import direction.
- C. R2 specifies that the peer R1 sets the local priority to 150 in the export direction.
- D. R1 specifies that the peer R2 sets the local priority to 150 in the import direction.
Answer: B,D
NEW QUESTION 240
As shown in the following topology figure, the corresponding peer relationship is established. The AS400 receives the 1.1.1.1/32 network route from the AS100. What is the AS-Path attribute?
- A. 100 200 300 400
- B. 400 300 200 100
- C. 100 200 300
- D. 300 200 100
Answer: D
NEW QUESTION 241
When there are multiple matching rules in the ACL of the VRP, which of the following statements is correct about the matching order?
- A. By default, match according to the principle of "depth first"
- B. In case of confirmation, match the order by matching the permit first and then matching the deny.
- C. There is only one matching order and cannot be modified.
- D. In case of confirmation, follow the Rule-ID, match from small to large
Answer: D
NEW QUESTION 242
In a multicast network, which of the following situations will cause forwarding failure of multicast traffic? (Multiple Choice)
- A. On a network with multiple egress routers, the router is not selected as the DR.
- B. Router does not have RPF routing.
- C. The upstream router discards the received PIM Join messages.
- D. PIM is not enabled on an RPF interface.
Answer: B,C,D
NEW QUESTION 243
Combined with the output result in the following figure, which statements are correct? (Multiple Choice)
- A. R3 router is level-2 router
- B. The system ID of the R3 router is 0003.0000.0000
- C. R3 must be a DIS of a level-2 link
- D. R3 must be a DIS of a level-1 link
Answer: B,C
NEW QUESTION 244
In the process of using the LACP protocol, which of the following description is correct? (Multiple choice)
- A. You can remove a member interface in an enabled link aggregation group by using the following command: interface Gigabitethemnet0/0/0 shutdown interface Gigabitethernet0/0/1 undo eth-trunk 1 interface Gigabitetheret0/0/ undo shutdown
- B. You can prevent the Eth-Trunk interface from frequently oscillating due to physical link by using the following command: interface eth-trunk 1 lacp preempt enable lacp preempt delay delay-time
- C. You can configure the source IP address for load balancing in the enabled link aggregation group by using the following command: interface eth-trunk 1 load-balance src-dst-ip
- D. You can add member interfaces to the enabled link aggregation group by using the following command: interface Gigabitethernet0/0/1 shutdown interface Gigabitethernet0/0/1 trunkport Gigabitethernet0/0/ interface Gigabitethernet0/0/1 undo shutdown
Answer: A,B
NEW QUESTION 245
If running PIM-SM on a multicast network, you need to construct a multicast forwarding tree between the multicast source and the receiver to enable the receiver to receive multicast data. Which of the following description about the constructed multicast forwarding tree is correct? (Multiple Choice)
- A. The RPT tree is built between the multicast source and the RP.
- B. The SPT tree is built between the multicast source and the RP.
- C. The RTP tree is built between the RP and the receiver.
- D. The SPT tree is built between the RP and the receiver.
Answer: B,C
NEW QUESTION 246
The fields indicating priority in the VLAN (802.1Q) data encapsulation are a total of 6 bits.
- A. False
- B. True
Answer: A
NEW QUESTION 247
The following topology diagram, all the interfaces of the router in the figure open the ISIS protocol, which of the following statement is correct? (Multiple Choice)
- A. If the Ethernet 0/0/1 interface of R1 is down, then R2 will become the master device.
- B. If the Ethernet 0/0/0 interface of R1 is down, then R2 will become the master device.
- C. If the Ethernet 0/0/0 interface of R3 is down, then R2 will become the master device.
- D. If the GE0/0/0 interface of R3 is down, then R2 will become the master device.
Answer: A,B,D
NEW QUESTION 248
If multiple candidate RPs are configured in a certain group of multicasts, which of the following parameters need to be compared between the multiple candidate RPs? (Multiple Choice)
- A. Group-wide mask length of the C-RP service matching the group address to which the user joins
- B. C-RP priority
- C. IP address of the C-RP interface
- D. Number of the C-RP interface
Answer: A,B,C
NEW QUESTION 249
As shown in the following figure, enterprises hope to achieve successful access VPN between headquarters and branches through MPLS.
Branch office VPN traffic must be forwarded through the headquarters for traffic monitoring.
Which of the following statement about this solution is wrong?
- A. You can establish an MP-IBGP peer relationship between the Spoke-PEs and exchange VPN routing information.
- B. When Hub-CE and Hub-PE use EBGP to transmit routing information, the Hub-PE must be able to accept routes that are repeated by the AS number to receive routes advertised by the Hu-CE.
- C. BGP can be used to exchange VPN routing information between the CE and the PE.
- D. OSPF can be used to exchange routing information between the Hub-CE and the Hub-PE and between the Spoke-PE and the Spoke-CE.
Answer: A
NEW QUESTION 250
Which of the following is true about the route penetration of ISIS? (Multiple Choice)
- A. ISIS route penetration is used to prevent routing loops.
- B. ISIS route penetration can be used in IPv6 environment.
- C. ISIS route penetration does not cause neighbors to oscillate.
- D. In the route penetration of ISIS, the route before penetration cannot be an aggregate route.
- E. ISIS route penetration can be deployed on Level--1 router.
Answer: B,C
NEW QUESTION 251
View the details of all VPN instances on a network device. The results are as follows. Which of the following statements are incorrect? (Multiple Choice)
- A. VPN-Instance vpna will not receive VPN routes with RT 2:1
- B. The device will assign a label to each route of the VPN-Instance vpna.
- C. GigabitEthernet 1/0/0 interface is bound to the VPN-Instance vpna.
- D. The total number of instances of the IPv6 address cluster enabled in the VPN configured on the local end is 1.
Answer: B,D
NEW QUESTION 252
If the value of the Option field in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 on Router A is 0x000013, the correct description of the following is: (Multiple Choice).
- A. Router A is an OSPFv3 device with forwarding capability
- B. Router A supports AS-External-LSA flooding
- C. GigabitEthernet0/0/0 of Router A belongs to the NSSA area.
- D. GigabitEthernet0/0/0 of Router A will participate in IPv6 route calculation.
Answer: A,B,D
NEW QUESTION 253
Regarding Route Policy, which of the following descriptions are correct? (Multiple Choice)
- A. If more than one node is defined in the Route-policy, at least one of the nodes should have a matching mode of permit.
- B. An advanced ACL can be applied to the route-policy to filter routes.
- C. The entry permit::0 less-equal 128 indicates that all IPv6 routes are allowed to pass.
- D. Route-Policy can only filter the default route.
Answer: A,C,D
NEW QUESTION 254
If a DR is elected between the multicast routers running PIM-SM to be responsible for receiving and receiving multicast data on the source or member, what is the correct description of the DR election rules?
- A. The PIM router with a long interface mask is elected as the DR.
- B. A router with a small IP address is elected as a DR.
- C. Compare the DR priorities first, if the priorities are the same, you need to compare the IP addresses of the PIM router interface to elect DRs.
- D. A PIM router with a low DR priority value is elected as the DR.
Answer: C
NEW QUESTION 255
When deploying LLQ, you need to configure bandwidth parameters. What is the meaning of bandwidth parameters?
- A. Provide a built-in policer to limit the maximum available bandwidth of low latency queues during congestion
- B. This parameter should be as small as possible. It means that the bandwidth is always reserved, even if LLQ is used, this parameter will reduce the available bandwidth of the interface.
- C. This parameter is an option because LLQ always takes precedence over other queues
- D. It indicates that the reference CR is used to calculate the burst size of the built-in policer token bucket.
Answer: A
NEW QUESTION 256
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