Huawei H12-821_V1.0-ENU Certification Exam Dumps with 966 Practice Test Questions
New H12-821_V1.0-ENU Exam Dumps with High Passing Rate
Huawei H12-821_V1.0-ENU (HCIP-Datacom-Core Technology V1.0) certification exam is a professional-level certification that tests the knowledge and skills of candidates in the field of data communication. HCIP-Datacom-Core Technology V1.0 certification exam is designed for candidates who want to demonstrate their expertise in data communication core technologies and their ability to design, implement, and troubleshoot data communication networks.
To be eligible to take the Huawei H12-821_V1.0-ENU certification exam, candidates must have a strong understanding of data communication and core network technology. This includes knowledge of routing and switching protocols, network architecture, network security, and network management. It is recommended that candidates have at least three years of experience in the field of data communication before taking this certification exam.
NEW QUESTION # 291
RSTP provides different protection functions in different scenarios. Which of the following is wrong?
- A. The designated port with root protection function enabled, its port role can only be maintained as the designated port
- B. Start the designated port of root protection. When the port receives a better RSTBPDU, the port will enter the Discarding state and no longer forward packets. If the port does not receive a better RST BPDU within a period of time, it will automatically return to the normal Forwarding state
- C. After the BPDU protection function is enabled on the switching device, if the edge port receives the RST BPDU, the edge port will be set as a non-edge port, and the spanning tree calculation will be performed again
- D. After the anti-TC-BPDU packet attack function is enabled, the number of times the switching device processes TC BPDU packets in a unit time can be configured
Answer: C
NEW QUESTION # 292
Which of the following descriptions about the Options field in the DHCP message are correct?
(Multiple choice)
- A. Option 82 is called the relay agent information option, which records the VLAN ID of the switch port connected to the DHCP client
- B. Option 82 does not contain the MAC address of the relay device
- C. Option 82 can contain up to 256 Sub-Options
- D. The Options field consists of three parts: Type, Length and Value
Answer: A,D
NEW QUESTION # 293
In RSTP, you can use the stp root primary command to configure the current device as the root bridge.
After configuration, the device priority is automatically ( ), and the device priority cannot be changed.
(Please fill in the Arabic numerals)
Answer:
Explanation:
0
NEW QUESTION # 294
OSPF can support multiple types of networks. Which of the following types of networks need to elect DR and BDR? (Multiple choice)
- A. P2MP
- B. NBMA
- C. P2P
- D. BROADCAST
Answer: B,D
NEW QUESTION # 295
On Huawei equipment, which of the following commands can realize the linkage between BFD and the static default route?
- A. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track session 1
- B. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 bfd-session 1
- C. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track bfd-session 1
- D. ip route-static 0.0.0.0 0.0.0.0 10.0.12.2 track 1
Answer: C
NEW QUESTION # 296
Which of the following descriptions about 0SPF packet authentication is wrong? (Multiple choice)
- A. The authentication modes supported by Huawei routers can be divided into Null, Simple., MD5, and HMAC-MD5 according to different encryption algorithms. Some devices also support HMAC-SHA256
- B. In the same OSPF process on the same router, if Area 0 uses MD5 authentication, other areas must also use MD5 authentication, but the authentication keys in different areas can be different
- C. Huawei routers support two authentication methods: area authentication and interface authentication
- D. The OSPF neighbor authentication process is completed by exchanging Hello packets
Answer: B,D
NEW QUESTION # 297
Regarding the warning
message "0SPF/2/IFAUTFAIL (OID) [1.3.6.1.2.1.14.16.2.6]:Apacketisreceivedonanon-virtual Interface from a muter whos eauthentication key Or authentication type conflicts with the local authentication key Or authentication type. (IflpAddress=[ipaddress]AddressLesslf=(interflce-index] Processld=[process-id]Routerld=(muter-id)]PacketSrc=[source-ip-address] ConfigErrorType= (error-type) ] PacketType=[packettypel] InstanceName=[linstancename] ) " Which of the following description is wrong?
- A. It may be an error caused by a mismatch in the area code
- B. Errors that may be caused by the HELLO time interval
- C. An error may be caused by a subnet mask mismatch
- D. It may be caused by interface verification and coordination errors
Answer: D
NEW QUESTION # 298
Which of the following statements about the OSPF protocol is wrong?
- A. OSPF is a link state based exterior gateway protocol
- B. The OSPF protocol supports area division
- C. OSPF supports load balancing for equal-cost routes
- D. OSPF packets are encapsulated in IP packets and can be sent in the form of unicast or multicast
Answer: A
NEW QUESTION # 299
Stacking: refers to connecting two or more switches to each other through a dedicated connection cable. For example, to connect two switches, you can directly connect the UP-stacking port of one stacking switch to the DOWN stacking of another stacking switch. ports to expand the number of ports on a single switch.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 300
Which of the following are multi-channel protocols? (Multiple choice)
- A. SMTP
- B. H.323
- C. Telnet
- D. FTP
Answer: B,D
NEW QUESTION # 301
Which of the following descriptions are correct about two-tier roaming and three-tier roaming? (Multiple choice)
- A. Three-tier roaming means that the client roams between different subnets
- B. The VLANs on the AP service set associated with the STA before and after Layer 3 roaming must be the same
- C. Layer 2 roaming means that the client roams in the same subnet
- D. If the VLAN ID associated before and after the STA is the same when roaming, it must belong to Layer 2 roaming
Answer: A,B
NEW QUESTION # 302
Which of the following fields is not included in the LS Request message?
- A. Advertising Router
- B. Link state type
- C. Link State ID
- D. Database Description Sequence Number
Answer: D
NEW QUESTION # 303
Which of the following descriptions about BGP are correct? (Multiple choice)
- A. BGP uses TCP port 179 for communication.
- B. BGP uses Keepalive messages to keep the TCP connection valid. The default Keepalive sending period is 60 seconds.
- C. When BGP establishes a neighbor relationship, it must first complete the TCP three-way handshake.
Otherwise, the neighbor relationship cannot be established. - D. When BGP establishes a neighbor relationship, the necessary parameters are negotiated through Notification messages.
Answer: A,B,C
NEW QUESTION # 304
In the inter-domain report filtering, which option of the following is in the outbound direction?
- A. trust-local
- B. untrust-trust
- C. trust-untrust
- D. untrust-dmz
Answer: C
NEW QUESTION # 305
As shown in the figure, SW1 is the general root in the MSTP network, please configure the following switches with the IST domain root and main bridge.
Answer:
Explanation:
NEW QUESTION # 306
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Huawei H12-821_V1.0-ENU exam is a challenging test of knowledge and skills in data communication core technology. Candidates who pass the exam earn the HCIP-Datacom-Core Technology V1.0 certification, which demonstrates their expertise in this area. HCIP-Datacom-Core Technology V1.0 certification opens up new career opportunities and helps professionals stand out in a highly competitive job market.
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