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Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) exam is a certification exam offered by Huawei to test the knowledge and skills of IT professionals in the field of data communication core technology. H12-821_V1.0 Exam is designed for individuals who have experience in the planning, design, implementation, and maintenance of data communication networks.
NEW QUESTION # 322
To prevent the system from misjudging roaming with the same VLAN ID but in different subnets as Layer 2 roaming, you need to use the roaming domain to determine whether the devices are in the same subnet. If they are the same, it is Layer 2 roaming, and vice versa. layer roaming.
Answer: B
NEW QUESTION # 323
On a broadcast IS-IS network, a DIS needs to be elected to create and update pseudonodes. Which of the following values is the default DIS priority of an IS-IS interface?
Answer: D
Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:In an Intermediate System to Intermediate System (IS-IS) network, a Designated Intermediate System (DIS) is elected on broadcast networks to perform the following functions:
* Represent the broadcast network as a pseudonode.
* Generate and update the Link State Protocol Data Units (LSPs) for the pseudonode.
The DIS is elected based on the DIS priority value, which is configured on IS-IS interfaces. If two routers have the same priority, the router with the higher MAC address becomes the DIS.
The default DIS priority for IS-IS interfaces is 64, which can be modified depending on the network requirements.
* Option A (200): Incorrect. This is not the default value.
* Option B (64): Correct. This is the default DIS priority value.
* Option C (1): Incorrect. This is not the default value.
* Option D (100): Incorrect. This is not the default value.
References:
* Huawei HCIA-Datacom Study Guide, Chapter on "IS-IS Basics".
* RFC 1195 - Use of OSI IS-IS for Routing in TCP/IP and Dual Environments.
NEW QUESTION # 324
Regarding the command of OSPF route aggregation, which description is correct? (Multiple choice)
Answer: A,B,C
NEW QUESTION # 325
In inter-AC roaming scenarios, an AC can function as the mobility server of multiple mobility groups, but can be added only to one mobility group.
Answer: B
Explanation:
In inter-AC roaming scenarios, an AC (Access Controller) can serve as the mobility server for multiple mobility groups, enabling it to manage roaming among multiple groups. However, an AC can only belong to one specific mobility group. This constraint ensures that mobility management remains streamlined and avoids conflicts. Huawei WLAN mobility configuration guides validate this setup .
NEW QUESTION # 326
OSPF networks are classified into four types of networks by link layer protocol. Drag the following link layer protocols to the corresponding network types.(Token is reusable)
Answer:
Explanation:
Network Types and Corresponding Link Layer Protocols
Broadcast: Ethernet
Point-to-Point (P2P): PPP, HDLC
Point-to-Multipoint (P2MP): PPP
Non-Broadcast Multi-Access (NBMA): Frame Relay
OSPF Network Types:
OSPF classifies networks based on link layer protocols into the following types:
Broadcast: This type assumes that all routers on the network can communicate directly with one another using multicast or broadcast frames. Ethernet networks are typical examples.
Point-to-Point (P2P): This type is used for links that connect two routers directly. Common protocols include PPP (Point-to-Point Protocol) and HDLC.
Point-to-Multipoint (P2MP): This type simulates multiple point-to-point connections over a single physical network, often used in WAN scenarios where PPP is employed.
Non-Broadcast Multi-Access (NBMA): These networks connect multiple devices but lack native broadcast capability, such as Frame Relay.
Reference: HCIP-Datacom-Core Technology Training Material (OSPF Network Types).
Explanation of Matches:
Broadcast - Ethernet: Ethernet supports broadcast and multicast communication, making it a suitable example of a broadcast OSPF network.
P2P - PPP, HDLC: Both PPP and HDLC are designed for direct communication between two nodes, fitting the P2P category.
P2MP - PPP: In WANs, PPP often operates in a point-to-multipoint configuration, simulating separate connections for each endpoint.
NBMA - Frame Relay: Frame Relay is a classic NBMA technology where direct communication between devices requires manual configuration, as there is no inherent broadcast capability.
Conclusion:This classification ensures that OSPF operates efficiently over different network types by adapting neighbor discovery and LSA propagation mechanisms to the underlying link layer technology.
NEW QUESTION # 327
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