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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.
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Huawei H12-821_V1.0 Certification Exam is an important certification for IT professionals who are looking to enhance their career in the field of datacom core technology. HCIP-Datacom-Core Technology V1.0 certification provides the candidate with the knowledge and skills required to design, implement, and maintain large-scale datacom networks. HCIP-Datacom-Core Technology V1.0 certification also helps the candidate to stay updated with the latest trends and technologies in the field of datacom core technology.
NEW QUESTION # 248
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,C
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
OSPF State Machine:
OSPF adjacency progresses through several states:Down > Init > 2-Way > ExStart > Exchange > Loading > Full.
The2-Way stateindicates 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.
References:
HCIA-Datacom Study Guide, Chapter: OSPF Adjacency Establishment
Huawei OSPF Neighbor State Analysis
NEW QUESTION # 249
What is the default sending interval of BFD packets?
Answer: B
Explanation:
The default sending interval for BFD (Bidirectional Forwarding Detection) control packets is 100 milliseconds. This interval ensures rapid detection of link faults, providing fast failover and minimizing downtime in network operations .
NEW QUESTION # 250
There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
Answer:
Explanation:
SPT
Explanation:
Routing Entries in PIM
(S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
(S, G) entries are used in both PIM-DM and PIM-SM modes.
PIM-DM and PIM-SM Modes
InPIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist.
(S, G) entries represent source-specific paths created after the flooding stage.
InPIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
HCIP-Datacom-Core Reference
The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
NEW QUESTION # 251
Four routers run ISIS and have established adjacencies. The area IDs and router levels are marked in the following figure. If route leaking is configured on R3, which of the following is the cost of the route from R4 to 10.0.2.2/32?
Answer: D
Explanation:
In the given topology, the route from R4 to 10.0.2.2/32 traverses R3, which performs route leaking from Level-2 to Level-1. The cost is calculated as follows: R4 to R3 (40) + R3 to R2 (10) + R2 to the destination (30), resulting in a total cost of 80 .
NEW QUESTION # 252
In an MST region, MSTP independently calculates an MSTI for each VLAN based on mappings between VLANs and MSTIs.
Which of the following statements is false about the characteristics of MSTIs?
Answer: B
Explanation:
A is false- Ports in MSTP can havedifferent roles and statesin different MSTIs. Each MSTI can independently elect a root and compute its own topology, which results indifferent port states per MSTI.
B is true- MSTIs use thesame spanning tree algorithm as STP (and RSTP)for calculating the spanning tree topology.
C is true- Each MSTI may have adifferent root bridgeand separate topology, depending on VLAN mappings.
D is true- MSTIs do not independently send BPDUs;only MSTI 0 (CIST)actually sends BPDUs, and information about other MSTIs is encapsulated within it. So thestatement is worded to test conceptual understanding, but not incorrect in MSTP context as framed.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"MSTP allows different MSTIs to have different topologies. A port may be forwarding in MSTI 1 but blocking in MSTI 2. This independence improves VLAN-based traffic engineering." (Chapter: MSTP Concepts - Section: MSTI Behavior and Port Roles)
NEW QUESTION # 253
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