H12-821_V1.0 DOWNLOAD PDF, H12-821_V1.0 NEW STUDY QUESTIONS

H12-821_V1.0 Download Pdf, H12-821_V1.0 New Study Questions

H12-821_V1.0 Download Pdf, H12-821_V1.0 New Study Questions

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Huawei H12-821_V1.0: HCIP-Datacom-Core Technology V1.0 Exam is an important certification for professionals who work in the field of data communication and networking. HCIP-Datacom-Core Technology V1.0 certification is designed to enhance the skills and knowledge of network engineers, network administrators, and network technicians. H12-821_V1.0 Exam is challenging and covers a wide range of topics related to data communication. HCIP-Datacom-Core Technology V1.0 certification is recognized globally and is highly valued by employers.

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q105-Q110):

NEW QUESTION # 105
An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links.
Which of the following configurations are mandatory?

  • A. Configure the remote discriminator of a BFD session.
  • B. Configure the local discriminator of a BFD session.
  • C. Enable BFD globally.
  • D. Configure a multicast IP address for BFD.

Answer: A,B,C

Explanation:
For single-hop BFD (Bidirectional Forwarding Detection), the configuration must include the local and remote discriminators to uniquely identify the session endpoints. Additionally, enabling BFD globally is a prerequisite for initiating BFD sessions. Configuring multicast IP addresses is unnecessary for single-hop BFD, as it operates over direct links. Huawei's configuration guidelines specify these requirements to ensure effective deployment and operation of BFD.
Understanding BFD (Bidirectional Forwarding Detection):
* BFD is a protocol used to detect link faults quickly between two routers.
* Single-hop BFD operates on directly connected links and is commonly used for fast fault detection in routing protocols like OSPF and BGP.


NEW QUESTION # 106
Which of the following routing protocols support the default route through command configuration?

  • A. OSPF
  • B. BGP
  • C. IS-IS
  • D. ICMP

Answer: A,B,C

Explanation:
BGP, IS-IS, and OSPF support the configuration of default routes through specific command configurations.
For example, BGP uses the default-originate command, IS-IS uses a default-route-advertise method, and OSPF can advertise default routes using default-information originate. ICMP, however, is not a routing protocol and does not support this functionality .


NEW QUESTION # 107
On the campus OSPF network shown in the following figure, the interfaces connecting the five routers are GE interfaces, and their costs are not changed. The import-route command is run on R1. After the network converges, the route to the server at 192.168.1.0/24 is queried on R2. Which of the following is the cost of this route?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: A

Explanation:
Understanding the Network Setup:
* The OSPF network consists of three areas (Area 1, Area 0, and Area 2).
* The server's subnet 192.168.1.0/24 is directly connected to R1 and imported into OSPF using the command:import-route direct type 1 cost 2 The server's subnet 192.168.1.0/24 is directly connected to R1 and imported into OSPF using the command:import-route direct type 1 cost 2 The server's subnet 192.168.1.0/24 is directly connected to R1 and imported into OSPF using the command:import-route direct type 1 cost 2
* The type 1 specifies the route as an OSPF Type 1 external route, meaning both the external cost and the internal OSPF cost will be included when calculating the total cost.
* The external cost specified for the imported route is 2.
* Cost Calculation to R2:
* The interfaces between the routers are GE interfaces, and the default cost for GE interfaces is 1.
* The path from R2 to the server goes through the following hops:
* R2 # R1: Cost = 1 (intra-area link).
* R1 # Server: External cost = 2 (specified in the import-route command).
* Total cost to R2:Intra-area cost (1) + External cost (2) = 3
Total cost to R2:Intra-area cost (1) + External cost (2) = 3
Total cost to R2:Intra-area cost (1) + External cost (2) = 3
* Verification of Each Option:
* Option A (2): Incorrect. This only accounts for the external cost, ignoring the internal OSPF cost.
* Option B (4): Incorrect. This overestimates the cost by adding an extra hop.
* Option C (3): Correct. The total cost is 3 (1 for the intra-area link + 2 for the external cost).
* Option D (1): Incorrect. This ignores the external cost of the imported route.
References:
* HCIA-Datacom Study Guide, Chapter: OSPF Route Types and Cost Calculation
* Huawei OSPF Cost Configuration Details


NEW QUESTION # 108
To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non- backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.

  • A. TRUE
  • B. FALSE

Answer: A

Explanation:
OSPF (Open Shortest Path First) mandates that the backbone area (Area 0) serves as the central area for routing information exchange. To avoid inter-area routing loops, routing information is only exchanged between the backbone area and non-backbone areas, not directly between two non-backbone areas.
Consequently, each Area Border Router (ABR) must connect to the backbone area to facilitate this routing exchange .


NEW QUESTION # 109
Which of the following values is the Reserved/Circuit Type field in the IIH packets sent by a Level-1-2 router on an IS-IS network?

  • A. 0
  • B. 01
  • C. 1
  • D. 00

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
* Intermediate System to Intermediate System (IS-IS) routers send IS-to-IS Hello (IIH) packets to establish neighbor relationships.
* The Reserved/Circuit Type field in IIH packets indicates which level of IS-IS adjacency the router is trying to establish:
* 00 # Level-0 (Not used in IS-IS).
* 01 # Level-1 router.
* 10 # Level-2 router.
* 11 # Level-1-2 router (Both levels supported).
* Since the question asks for the field value in an L1-L2 router's IIH packets, the correct answer is 11 (B).
# Reference: Huawei HCIA-Datacom Study Guide, IS-IS Neighbor Discovery and IIH Packet Format.


NEW QUESTION # 110
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