Jan-2022 Huawei H12-831_V1.0-ENU Actual Questions and 100% Cover Real Exam Questions
H12-831_V1.0-ENU Free Exam Questions and Answers PDF Updated on Jan-2022
NEW QUESTION 31
Which packets can Huawei equipment perform traffic suppression for? (Multiple choice)
- A. Broadcast
- B. Known unicast
- C. Multicast
- D. unknown Unicast
Answer: A,B,C,D
NEW QUESTION 32
(Drag and drop) Network administrator A needs to permit or deny some specific routes, but administrator A is not proficient in configuration. Please help administrator A to sort the configuration reasonably so that the device can permit or deny specific routes according to the requirements in the figure.
Answer:
Explanation:
NEW QUESTION 33
What is the Router-ID of OSPFv3?
- A. 100-bit value
- B. 32-bit value
- C. 128-bit value
- D. 64-bit value
Answer: B
NEW QUESTION 34
Which of the following are the advantages of VLAN aggregation? (Multiple choice)
- A. Reduce the waste of IP addresses
- B. Increased the number of available MLANs
- C. Increased flexibility of addressing
- D. Realize the isolation of broadcast domains between Sub-VLANs
Answer: A,D
NEW QUESTION 35
In the LDP session establishment process, the active party will first send the lnitialization information for parameter negotiation, and if the passive party does not accept the negotiation parameters, it will send _____ .
- A. Initialization Message
- B. Keepalive Message
- C. Hello Message
- D. Error Notification Message
Answer: D
NEW QUESTION 36
Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?
- A. The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets
- B. Master device sends 1 notification message per second
- C. The link that transmits the VRRP notification message is faulty
- D. The VRRP backup group IDs on both ends are different
Answer: B
NEW QUESTION 37
Through the display ip interface GE0/D/D command, you can view the statistics of ping packets received on this interface.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 38
Which of the following statements about 1S-IS (IPv6) is correct? (Multiple choice)
- A. To support the processing and calculation of IPv6 routes, IS-IS has added TLV232236
- B. By default, IS-IS enables the multi-topology feature
- C. IS-IS working at the data link layer only needs to add a new TLV to support Pv6
- D. To support the processing and calculation of IPv6 routing, IS-IS added NLPID to 129 TLV
Answer: A,C,D
NEW QUESTION 39
In order to prevent hackers from attacking user equipment or network through MAC address, the MAC address of untrusted users can be configured as black hole MAC address to filter out illegal MAC
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 40
Ethernet is a network that supports broadcasting. Once there is a loop in the network, this simple broadcasting mechanism will cause catastrophic consequences.
Which of the following phenomena may be caused by loops? (Multiple choice)
- A. CPU usage exceeds 70%
- B. When you use the display interface command to view interface statistics on the device, it is found that the interface receives a large number of broadcast packets
- C. The device cannot log in remotely
- D. Severe packet loss during network testing through the ping command
Answer: A,B,C,D
NEW QUESTION 41
Which description is correct about the MPLS forwarding mechanism? (Multiple choice)
- A. The system automatically assigns an ID to the upper-layer application that uses the tunnel, also known as Tunnel ID
- B. If the Tunnel ID value is 0x0, enter the MPLS forwarding process
- C. When an IP packet enters the MRLS domain, the FIB table is the first to be checked
- D. If the Tunnel ID value is not 0x0, enter the normal IP forwarding process
Answer: A,C
NEW QUESTION 42
By default, which of the following secure MAC address types will be lost after the device restarts?
- A. Secure dynamic MAC address
- B. Black hole MAC address
- C. Secure static MAC address
- D. Sticky MAC address
Answer: A
NEW QUESTION 43
A certain park deployed both IPv4 and IPv6 networks for service testing, and IS-IS was run to achieve network interconnection. IS-IS routing protocol has good scalability and is widely used in existing networks.
Regarding IS-IS scalability, which of the following statements are correct? (Multiple choice)
- A. For IS-IS, adding new features only needs to add a new TLV
- B. IS-IS uses TLV structure to construct messages, which makes IS-IS more flexible and expandable
- C. IS-IS needs to add TLV to carry Pv6 address information in order to support PV6
- D. NLPID is a new TLV of IS-IS to support IPv6
Answer: A,B,C
NEW QUESTION 44
What is the value of OSPF and BFD linkage?
- A. Through the BFD detected at the millisecond level, the OSPF status is associated to achieve the purpose of OSPF quickly inductive link state
- B. The sending interval of BFD packets can reach the millisecond level, which is slower than the OSPF inductive link state
- C. The hello sending interval of OSPF is at the second level, which is faster than BFD inductive link state
- D. Any change in the BFD status will not affect the OSPF neighbor status
Answer: A
NEW QUESTION 45
Regarding MP-BGP, whici of the following description is incorrect?
- A. MP-BGP needs to assign private network labels to VPNv4 routes
- B. When the PE and CE exchange routes through BGP, you need to create a BGP process for each VPN instance on the CE
- C. MP-BGP's message type and VPNv4 routing policy are the same as BGP-4
- D. MP-BGP advertises VPNv4 routes through two attributes: MP_REACH_NLRI and MP_UREACH_NLRI
Answer: B
NEW QUESTION 46
(Drag and drop) As shown in the figure, there is a message containing three-layer label headers. Please select the corresponding values of the X, Y, and Z fields in the figure. (Decimal)
Answer:
Explanation:
NEW QUESTION 47
In the test phase of cutover, which standards that can indicate the test has been completed?
- A. The configuration check result of the IP device is normal as the standard
- B. Check that the network is running normally as a standard
- C. The upper-layer application service test carried by the network is normal as the standard
- D. Test network business as normal as the standard
Answer: C
NEW QUESTION 48
In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the way the LSR processes data. For the same FEC, a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 49
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