Free H12-891_V1.0-ENU Questions for Huawei H12-891_V1.0-ENU Exam [Mar-2025]
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Huawei H12-891_V1.0-ENU Exam covers a wide range of topics, including network planning, design, implementation, and optimization. H12-891_V1.0-ENU exam also tests the candidate's knowledge of various Huawei products, including routers, switches, and network security devices. H12-891_V1.0-ENU exam consists of multiple choice questions, scenario-based questions, and hands-on lab exercises that simulate real-world network environments.
NEW QUESTION # 216
In the description of the MAC address spoofing attack, the error is? Radio
- A. An attacker can perform a MAC address spoofing attack by sending a forged source Mac address data frame to the switch
- B. Mac address spoofing attacks cause the switch to learn the wrong mapping of Mac addresses to IP addresses
- C. A MAC address spoofing attack causes the data that the switch is sending to the correct destination to be sent to the attacker
- D. MAC address spoofing attacks primarily exploit the switch Mac address learning mechanism
Answer: B
NEW QUESTION # 217
Which of the following options is correct?
- A. Multicast technology is used for "-to-many" applications
- B. Since multicast is based on TCP to establish a connection, multicast technology can ensure the reliable transmission of data
- C. Unicast and broadcasting cannot effectively achieve data transmission between one source and multiple destinations on P2MP, but multicast technology can
- D. Multicast technology is able to reduce redundant traffic, so network bandwidth can be saved
Answer: A,D
NEW QUESTION # 218
A bookstore provides a wired network for customers to learn online. However, one day, it was found that some users could not access the network, and after inspection, it was found that the IP resources of the DHCP address pool had been exhausted.
Which of the following is the best way to solve the problem of the moment? (Single choice questions).
- A. Configure the static ARP binding table
- B. Limits the maximum number of DHCP Snooping binding table entries that the interface allows to learn
- C. Configuration DAI
- D. Configure the IPSG
Answer: B
NEW QUESTION # 219
Which of the following options uses an alternate channel to enable communication between IPV6 addresses?
- A. 6to4
- B. DualStack
- C. NAT64
- D. ISATAP
Answer: A,D
NEW QUESTION # 220
To achieve an on-machine migration in the BGP EVPN distributed gateway scenario, which of the following messages is required?
- A. Type3
- B. Type4
- C. Type5
- D. Type2
- E. Typel
Answer: D
NEW QUESTION # 221
The data results of a router are as follows, and the analysis conclusion is correct (single choice).
- A. R3 routers Circuit-level is Level-1-2
- B. R3 is on the link where Eth0/0/0 is Eth0/ 1 of the LEVEL-1 and Level-2 DISC
- C. The R3 router's Eth0/0/1 enables both IPv4 and IPv6 ISIS
- D. The GEO/0/0 port of the R3 is in a different region than the neighbor
Answer: A
NEW QUESTION # 222
In an HWIP multicast network, where multiple sources exist and each source has several receivers, which protocol allows source-to-RP traffic and RP-to-receiver traffic to share the same tree 2?
- A. DVMRP
- B. PIM-DM
- C. MOSPF
- D. PIM SM
- E. 56768GZliuji
Answer: E
NEW QUESTION # 223
The following statement about isis protocol LSP messages is correct
- A. The isP rapid diffusion feature, which first diffuses out LSPs that are smaller than a specified number, speeding up the synchronization process of LSDB
- B. By configuring an LSP-generated smart timer, the timer automatically adjusts the delay time based on the frequency at which the routing information changes
- C. Reducing the minimum interval at which LSPs are sent per port can speed up the diffusion of LSPs.
- D. As link status information increases, the packet length of the LSP can be increased so that each ISP can carry more information.
Answer: A,B,C,D
NEW QUESTION # 224
SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 225
What are the types of link types included in OSPF's route LSA?
- A. VLINK
- B. Fransnet
- C. P-2-P
- D. Stubnet
Answer: A,B,C,D
NEW QUESTION # 226
The existing router HWl running BGP is configured with both IBGP neighbors and EBGP tenants.
The following descriptions about IBGP Neighbors and EBGP Neighbors are correct?
- A. EBGP neighbors must be directly connected, otherwise, EBGP-Multi-hop must be configured with
- B. The router will have an EBGP BGP neighbor from it must be connected directly, otherwise, IBGP-Multi-hop must be configured
- C. The router sends BGP updates learned from its EBGP neighbors to its other IBGP neighbors and EBGP neighbors
- D. IBGP neighbors can establish neighbor relationships through the Loopback interface
- E. The router sends BGP updates learned from its IBGP neighbors to its other IBGP neighbors and EPGP neighbors
Answer: A,C,D
NEW QUESTION # 227
What are the reasons why the BGP connection is down after it is successfully established? (Single choice questions) Single choice
- A. After the BGP connection is established, the keepalive message is not received within the negotiated hold time time.
- B. Open message negotiation failed.
- C. The mandatory attribute in the route update packet is missing.
- D. The wrong BGP packet was received.
Answer: B
NEW QUESTION # 228
SNMPv3 defines which security features
- A. Domain checking
- B. Privacy
- C. Authentication
- D. Accounting
Answer: B,C
NEW QUESTION # 229
Which of the following routing tools is unique to BGP?
- A. IP-prefix
- B. AS-path-filter
- C. ACL
- D. Route-policy
Answer: B
NEW QUESTION # 230
Based on the configuration shown in the figure below, it can be known that R4 has () interfaces advertised into IS-IS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 231
In the IS-IS broadcast network type, when establishing an adjacency relationship, if the router interface priority is set to 0, it will not participate in the dis election
- A. True
- B. False
Answer: B
NEW QUESTION # 232
Regarding the cross-domain VPN-OptionB scenario, what is the following description incorrect?
- A. The outer layer label is exchanged between two ASBRs to VPNv4 routes.
- B. scheme is not limited by the number of interconnection links between ASBRs
- C. Cross-domain VPN An Option
- D. In the process of packet forwarding, the private network LSP of the VPN should be exchanged once on the two ASBRs An EBGP neighbor relationship.
Answer: A
NEW QUESTION # 233
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Huawei H12-891_V1.0-ENU Exam is a challenging certification program that requires candidates to have extensive knowledge and experience in data communication. HCIE-Datacom V1.0 certification is ideal for IT professionals who are looking to advance their careers in data communication and network engineering. The HCIE-Datacom V1.0 certification is recognized by major IT companies and is highly valued by employers. Candidates who pass the exam can expect to have a competitive advantage in the job market and can expect to earn higher salaries compared to their non-certified counterparts.
Huawei H12-891_V1.0-ENU (HCIE-Datacom V1.0) Certification Exam covers a wide range of topics, including network architecture and design, routing and switching technologies, network security, IP multicast, Quality of Service (QoS), MPLS VPN, and network optimization. H12-891_V1.0-ENU exam is designed to test the knowledge and skills of the candidates in these areas, making it an excellent choice for professionals who want to validate their knowledge and skills in data communication technologies. With this certification, professionals can demonstrate their expertise in the field and enhance their career prospects in the industry.
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