Guide (New 2024) Actual Huawei H12-831-ENU Exam Questions
H12-831-ENU Exam Dumps Pass with Updated 2024 Certified Exam Questions
Huawei H12-831-ENU (HCIP-Datacom) Exam is a certification exam for IT professionals who want to validate their knowledge and skills in data communication technologies. H12-831-ENU exam is designed to test the candidates' understanding of datacom technologies, network protocols, and network architecture. Passing H12-831-ENU exam can lead to a career advancement opportunity, as it demonstrates the candidate's proficiency in the field.
NEW QUESTION # 249
What are the working modes of firewall interfaces? (Multiple choice)
- A. Transparent Mode
- B. Exchange Mode
- C. Routing Mode
- D. Transmission Mode
Answer: A,C
NEW QUESTION # 250
BGP/MPLS IP VPN can only use LDP to build a public network channel.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 251
Which is wrong with this configuration description?
- A. If there is no SubOption information of Option82 in the DHCP request packet received by GigabitEthemnet0/0/1 interface, the device will generate Option82
- B. Enabling DHCP Snooping configuration can be used to prevent DHCP Server bogus attacks
- C. Enable DHCP Snooping configuration can be used to prevent ARP spoofing attacks
- D. Configure the GigabitEthernet0/0/1 interface as a trusted interface
Answer: A
NEW QUESTION # 252
Sort by the cutover execution steps.
- A. After the cutover is completed, observe the status of the network on the new device
- B. Cut over business from old equipment to new equipment
- C. Install new equipment and configure
- D. After ensuring that the business of the new equipment runs normally, the old equipment goes offline
- E. Perform service checks on new equipment
Answer: A,B,C,D,E
NEW QUESTION # 253
What check items can be set by IPSG? (Multiple choice)
- A. MAC address
- B. VLANID
- C. IP address
- D. Outgoing interface
Answer: A,B,C,D
NEW QUESTION # 254
What is the default aging time of the MAC address table of Huawei switches?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 255
Which of the following statements is true about BGP4+? (Multiple choice)
- A. BGP4+ carries the next hop address of the route through the Network Address of Next Hop in the MP_REACH_NLRI attribute
- B. The NEXT_HOP attribute does not exist in BGP4+
- C. BGP4+ carries the prefix and mask length of IPv6 routes through the NLRI attribute
- D. BGP4+ carries the next hop address of IPv6 routes through the NEXT_HOP attribute
Answer: A,C
NEW QUESTION # 256
OSPF is deployed in a small and medium-sized network. When checking the routing table of a certain device, it is found that only directly connected routes exist. Which operation is unlikely to cause the fault?
- A. The configured user permissions are too low
- B. Routing protocol configuration error
- C. Routing policy configuration error
- D. Port address configuration problem
Answer: A
NEW QUESTION # 257
What are the reasons why DHCP faces many security threats? (Multiple choice)
- A. Because the DHCP discovery message (DHCPDISCOVER) is sent in the form of broadcast
- B. The man-in-the-middle exploits the fake IP-to-MAC mapping relationship to deceive both the DHCP client and the server at the same time
- C. DHCP Server cannot distinguish what kind of CHADDR is super legal and what kind of CHADDR is illegal
- D. DHCP dynamic allocation of IP addresses has a long response time
Answer: A,B,C
NEW QUESTION # 258
In the MPLS forwarding process, which descriptions are correct about the forwarding of the ingress node? (Multiple choice)
- A. Find the corresponding NHLFE entry according to the Tunnel ID of the ILM table and associate the LFIB with the NHLFE entry
- B. After receiving the data packet, the Ingress node recycles the ILM table first and finds the Tunnel ID
- C. View the NHLFE entry, you can get the outgoing interface, next hop, outgoing label and label operation type, the label operation type is Push
- D. Press the obtained label into the IP packet, and process the EXP and TTL according to the QoS policy
Answer: C,D
NEW QUESTION # 259
LDP messages are exchanged between LSR running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?
- A. Conversational messages
- B. Discovery news
- C. Label Switched Messages
- D. Announcement message
Answer: C
NEW QUESTION # 260
According to this figure, what can we judge? (Multiple choice)

- A. GigabitEthernet0/0/1 of R1 must enable IS-IS IPv6
- B. R1 does not have IS-IS IPv6 routing
- C. R1 has 6 IS-IS IPv6 routes
- D. The device type of R1 is definitely not Leve1-1
Answer: A,C,D
NEW QUESTION # 261
According to the configuration shown in the figure below, you can know that R4 has an interface advertised into IS-IS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 262
If the BFD session goes down, the direct link will fail.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 263
Which descriptions about the MPLS forwarding mechanism are correct? (Multiple choice)
- A. The system automatically assigns an ID to the upper-layer application using the tunnel
- B. If the Tunnel ID value is not 0x0
- C. When an IP packet enters the MRLS domain, the first thing to look at is the FIB table
- D. If the Tunnel ID value is 0x0
Answer: A,C
NEW QUESTION # 264
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