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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Core Technology V1.0 |
| Exam Number: | H12-821_V1.0 |
| Exam Format: | True or false, Short response, Drag and drop, Single-answer questions, Multiple-answer questions |
| Available Languages: | English, Chinese |
| Certificate Validity Period: | 3 years |
| Related Certifications: | HCIA-Datacom HCIP-Datacom Certification HCIE-Datacom |
| Real Exam Qty: | 60-70 |
| Exam Price: | USD180 |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Sample Questions: | Huawei H12-821_V1.0 Sample Questions |
| Exam Way: | Pearson VUE test center or online proctored written examination |
| Pre Condition: | Huawei recommends having HCIA-Datacom level knowledge before taking this exam. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/ |
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Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) Certification Exam is an advanced level certification designed for professionals who want to enhance their skills and knowledge in data communication technology. HCIP-Datacom-Core Technology V1.0 certification is designed by Huawei Technologies Co. Ltd, a leading global provider of information and communications technology (ICT) infrastructure and smart devices. HCIP-Datacom-Core Technology V1.0 certification exam focuses on the core technologies used in data communication and aims to equip professionals with the skills needed to design, deploy and maintain data communication networks.
Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) exam is a certification test designed for IT professionals who want to showcase their knowledge and skills in data communication and networking technologies. H12-821_V1.0 exam is a part of the Huawei HCIP certification path, which is a widely recognized certification program in the IT industry. Passing the H12-821_V1.0 exam validates the candidate's expertise in core data communication technologies.
NEW QUESTION # 127
As shown in the figure, router R has static routes to three network segments of Site A, Site B, and Site C respectively. The administrator needs to configure to import the routes of Site A and Site B into the OSPF Domain. Please set the commands for configuring RE are completed below.
1: ______
2: ______
3: ______
Answer:
Explanation:
permit | permit | if-match
NEW QUESTION # 128
On an OSPF network, if the network type isNBMA, a router unicasts all protocol packets; if the network type isbroadcast, a router multicasts all protocol packets.
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
OSPF network typesaffect how protocol packets (Hello, LSA updates) are transmitted:
NBMA (Non-Broadcast Multi-Access)networks (e.g., Frame Relay) donot support multicast, so routers mustunicastOSPF packets to neighbors.
Broadcast networks(e.g., Ethernet) supportmulticastand use224.0.0.5 for Hello packetsand224.0.0.6 for DR
/BDR communication.
The statement isfalsebecause:
NBMA does not unicast all packets-only Hello packets must bemanually configuredto be unicast.
LSAs and routing updates can still be multicastif an NBMA network is configured aspoint-to-multipoint.
#Reference:Huawei HCIA-Datacom Study Guide, OSPF Network Types and Packet Transmission.
NEW QUESTION # 129
Which of the following descriptions about Network-Summary-LSA is correct? (Multiple choice)
Answer: A,B,D
NEW QUESTION # 130
On an office network of an enterprise, OSPF is enabled on two directly connected routers. During adjacency establishment, the state machine stays in the 2-way state. Which of the following statements are not possible causes?
Answer: B,D
Explanation:
OSPF State Machine:
OSPF adjacency progresses through several states: Down > Init > 2-Way > ExStart > Exchange > Loading > Full.
The 2-Way state indicates that routers have exchanged Hello packets but are not forming full adjacencies.
Possible Causes for Staying in the 2-Way State:
Hello Time Values Are Different (A): Mismatched Hello/Dead intervals prevent adjacency establishment.
Area IDs Are Different (B): OSPF routers must belong to the same area to establish adjacency.
Router IDs Conflict (C): While Router ID conflicts cause other issues, they do not result in the 2-Way state.
N-bit and E-bit Are the Same (D): Matching N-bit/E-bit values are normal and do not cause problems.
NEW QUESTION # 131
GRE is a VPN technology that can implement packet transmission over heterogeneous networks. Which of the following statements are true about GRE?
Answer: B,C
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is GRE (Generic Routing Encapsulation)?
* GRE is a tunneling protocol that allows the encapsulation of various types of packets (e.g., IPv4, IPv6, multicast, etc.) to be transmitted over another protocol (e.g., IP).
* GRE is used to create point-to-point connections over heterogeneous networks.
2. Analysis of Each Option:
Option A: GRE is a Layer 2 VPN encapsulation technology.
* Incorrect.
* GRE operates at Layer 3 (Network Layer) and encapsulates Layer 3 packets. It is not a Layer 2 VPN encapsulation technology like MPLS or Ethernet-over-IP.
Option B: GRE enables encapsulated data packets to be transmitted over another network layer protocol, but cannot encapsulate multicast data.
* Incorrect.
* GRE supports the encapsulation and transmission of multicast data packets. This is one of its key features, making it suitable for protocols like OSPF and multicast applications.
Option C: GRE tunnels can work with IPsec to ensure the security of multicast services such as voice and video.
* Correct.
* GRE by itself does not provide encryption or security. However, GRE can work with IPsec to secure the encapsulated traffic, including multicast data, for services like voice and video.
Option D: GRE tunnels can extend the working range of network protocols with hop limits.
* Correct.
* GRE encapsulates packets, effectively resetting their hop limits and allowing protocols with limited hop counts (e.g., RIP) to work over larger networks.
3. Summary:
* The correct options are C and D.
NEW QUESTION # 132
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