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Prepare for the Huawei HCIP-Datacom-Core Technology V1.0 exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
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The questions for H12-821_V1.0 were last updated on Feb 18, 2025.
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Which of the following statements regarding multicast MAC addresses are false?
One multicast MAC address maps to 32 multicast IP addresses due to the limited number of bits used in the mapping process. Specifically, the lower 23 bits of the MAC address map to the lower 23 bits of the multicast IP address, while the high 24 bits of the MAC address are fixed as 0x01005E. Thus, Option B is false .
In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.
Notification Message Purpose
BGP Notification messages are used to report errors or terminate a connection. They do not request peers to resend routing information after routing policies are changed.
Routing updates following policy changes require manual resynchronization, not Notification messages.
HCIP-Datacom-Core Reference
The purpose and usage of Notification messages are discussed in the BGP operation chapters.
On a network, some switches are enabled with RSTP and some switches are enabled with STP. What will happen?
When STP and RSTP coexist in a network, RSTP switches will downgrade their operation to STP to ensure compatibility. However, this disables RSTP's rapid convergence features, as the protocol behaves like STP to maintain interoperability .
STAs stay on different subnets before and after Layer 3 roaming. To enable the STAs to access the original network after roaming, network engineers need to configure user traffic to be forwarded to the original subnet over a CAPWAP tunnel.
In Layer 3 roaming scenarios, STAs (stations) remain on different subnets before and after roaming. To ensure that user traffic reaches the original subnet, it must be tunneled back over a CAPWAP tunnel. This technique prevents disruptions in communication and enables seamless roaming. Huawei's Layer 3 roaming design guidelines emphasize the use of CAPWAP tunnels for user traffic forwarding .
Which of the following statement regarding the display ospf peer command output is true?
The command output indicates that the OSPF neighbor state is Full and that the neighbor relationship has been established. The statement confirms that the negotiation process during the exchange of DD (Database Description) packets has determined the role of the router, with the local device becoming the slave in the Master-Slave relationship, which is critical for LSA synchronization. The other options do not align with the output or OSPF principles
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