[Full-Version] 2021 New VCE4Plus H12-261-ENU PDF Recently Updated Questions
H12-261-ENU Exam with Guarantee Updated 525 Questions
NEW QUESTION 90
Which of the following statements are wrong about cross-domain MPLS VPN? (Multiple Choice)
- A. When the public network label is LDP-based, the Layer 3 label is required for the cross-domain VPN-OptionC scheme 2 packet forwarding process.
- B. For the cross-domain VPN-OptionB mode, the two ASBRs are connected to each other through multiple interfaces (including sub-interfaces). Each interface is associated with a VPN. Each ASBR-PE treats the peer as a CE.
- C. For the cross-domain VPN Option A mode, the route between the two ASBRs is a normal PV4 route.
- D. For cross-domain VPN-Option B mode, an MP-EBGP neighbor relationship needs to be established between the two ASBRs.
Answer: A,B
NEW QUESTION 91
Which of the following descriptions are true about the establishment process of LDP LSP? (Multiple Choice)
- A. In the label publishing DoD mode, for a specific FEC, the LSR does not need to obtain the label request message from the upstream to perform label distribution and distribution.
- B. The process of establishing an LSP is actually the process of binding the FEC to the label and advertising the binding to the upstream LSR of the LSP.
- C. When the network topology changes cause the next hop neighbor to change, the LSR can directly reestablish the LSP by using the label sent by the original non-optimal next hop neighbor.
- D. By default, the LSR is for the same FEC. The received label mapping can only come from the optimal next hop. It cannot be from the non-optimal next hop.
Answer: A,B,C
NEW QUESTION 92
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 93
The following description of the BSR mechanism, which is correct? (Multiple Choice)
- A. There can be multiple C-BSR in a PIM-SM domain, but only one BSR can be elected.
- B. The BSR collects C-RP information through the received C-RP data packets.
- C. One C-BSR can also collect C-RP information through received C-RP packets.
- D. The BSR advertises BSR information and C-RP information to all routers in the PIM-SM domain by flooding Bootstrap packets.
Answer: A,B,D
NEW QUESTION 94
BGP can only automatically aggregate routes originating from Incomplete.
- A. False
- B. True
Answer: B
NEW QUESTION 95
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. The device will assign a label to each route of the VPN-Instance vpna.
- B. VPN-Instance vpna will not receive VPN routes with RT 2:1.
- 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: A,D
NEW QUESTION 96
If the Option field 0X000013 in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 port of Router A, which of the following descriptions are correct? (Multiple Choice)
- A. Router A is an OSPFv3 device with forwarding capability
- B. GigabitEthernet0/0/0 of Router A belongs to the NSSA area.
- C. GigabitEthernet0/0/0 of Router A will participate in IPv6 route calculation.
- D. Router A supports AS-ExternaI-LSA flooding
Answer: A,C,D
NEW QUESTION 97
User wants to enable the router for packets forwarding and routing according to the policy defined by itself based on the traditional route forwarding.
To achieve this goal, policy routing can be employed.
Which of the following about the description of policy routing is wrong?
- A. Policy routing cannot be used to set IP Precedence
- B. Policy routing can set the next hop IP address
- C. Policy routing cannot set DSCP in a statement
- D. Policy routing can be used to match the packet length
Answer: A
NEW QUESTION 98
As shown in the following figure, what routes can R2 learn?
- A. R2 can learn routes 10.1.2.0/24 and 10.1.3.0/24.
- B. R2 can learn the route 10.1.1.0/24.
- C. R2 can learn all the routes of R1.
- D. R2 can learn the LSPs of R1 but cannot add them to the routing table.
Answer: C
NEW QUESTION 99
If you run PIM-SM on a multicast network, you need to construct a multicast forwarding tree between the multicast source and the receiver for the receiver to receive multicast data, so the following descriptions are about the constructed multicast forwarding tree, which are the correct options? (Multiple Choice)
- A. The RPT tree is constructed between the multicast source and the RP.
- B. The RTP tree is constructed between the RP and the receiver.
- C. The SPT tree is constructed between the multicast source and the RP.
- D. The SPT tree is constructed between the RP and the receiver.
Answer: B,C
NEW QUESTION 100
Which AS_PATH can the command ip as-path-filter1 permit^12*74$ match?
- A. AS PATH(1236217432374)
- B. AS PATH(321122374)
- C. AS PATH(1253287423)
- D. AS PATH(32127423)
Answer: A
NEW QUESTION 101
Which of the following command is displayed to determine that the loop fault of the switch is generated?
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION 102
Which of the following types of packets is required to implement virtual machine migration in the BGP EVPN distributed gateway scenario?
- A. Type5
- B. Type4
- C. Type3
- D. Type1
- E. Type2
Answer: E
NEW QUESTION 103
Which of the following statements about RADIUS is correct?
- A. MAC authentication does not require a username and password, so you cannot use RADIUS to authenticate a user.
- B. RADIUS authentication and Portal authentication cannot be used together. Because Portal authentication is usually used, the Portal server can be used to authenticate users.
- C. RADIUS supports both wired and wireless access methods.
- D. RADIUS protocol authentication, authorization, and audit separation.
Answer: C
NEW QUESTION 104
Which of the following statement about the digital certificate is wrong?
- A. The digital certificate contains public key information.
- B. Digital signatures guarantee the integrity of digital certificates.
- C. Even if the two PRI entities are not in the same CA system, the two parties can complete the authentication as long as they can identify each other.
- D. When the received peer certificate is valid, but the device itself is in the wrong time and is not within the validity period of the certificate, the authentication fails.
Answer: C
NEW QUESTION 105
As shown in the following 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 106
The network administrator defines a traffic policing strategy as follows:
The router port that uses this policy has been idle for about 10 seconds. At this time, there are huge bursts of c1 type traffic coming in an instant, so how many bytes will be colored in the green packet?
- A. 32K bytes
- B. 80128 bytes
- C. 48128 bytes
- D. 256K bytes
Answer: C
NEW QUESTION 107
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 108
If the PPP link between R1 and R2 is shown, and the direct connection port is not on the same network segment, but the R1 and R2 direct connection ports can communicate, and the Ethernet link cannot communicate under the same IP planning, what is the reason? (Multiple choice)
- A. R1 and R2 are connected to the POS port, and the 24-bit subnet route of the direct connection port of the other party is learned through IPCP.
- B. R1 and R2 are connected to the POS port, and the 32-bit host route of the direct connection port of the other party is learned through IPCP.
- C. The interconnected POS port of R1 and R2 learns the MAC address of the peer interface through LCP, and does not require the ARP request MAC address.
- D. The data packets of the interconnected POS interface of R1 and R2 do not need to encapsulate the Ethernet header, and do not need to use ARP to request the MAC address.
Answer: B,D
NEW QUESTION 109
In an MPLS-BGP-VPN environment, if only BGP and LDP are used to distribute labels, the MPLS label of the packet can be up to two layers.
- A. False
- B. True
Answer: A
NEW QUESTION 110
Regarding the way the device handles packets in the MPLS network model, which of the following descriptions are wrong? (Multiple Choice)
- A. LSR must not strip labels.
- B. Both LER and LSR will carry out label distribution.
- C. The label forwarding path LSP is determined and established through various protocols during the forwarding of the packet.
- D. The device discards the IP packets that enter the MPLS domain.
Answer: A,C,D
NEW QUESTION 111
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 BFD function is disabled on R2, the BFD session of R1 will be down. It will cause OSPF neighbor relationship down.
- C. 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.
- D. 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.
- E. The OSPF status changes to FULL, which triggers the BFD session.
Answer: C,E
NEW QUESTION 112
In Huawei devices, when ISIS imports external routes and sets external route tags for routing information, the metric type of ISIS does not need to be modified, just keep the default.
- A. False
- B. True
Answer: A
NEW QUESTION 113
In the HW MPLS network, which parameters are used to define a forwarding equivalence class? (Multiple choice)
- A. RSVP requests resource reservation from CE
- B. BGP MED value
- C. IP prefix
- D. Layer 2 link
Answer: C,D
NEW QUESTION 114
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