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NEW QUESTION # 16
On an OSPF network, if two indirectly connected routers with the same router ID run in the same area, Type 1 LSA calculation fails.
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
* Type 1 LSAs (Router LSAs) are generated by every OSPF router to describe its directly connected links and their states.
* The Router ID (RID) must be unique in an OSPF domain; otherwise, OSPF calculations will fail due to ambiguous paths.
* If two routers in the same area have the same Router ID, OSPF will fail to calculate Shortest Path First (SPF) correctly, leading to routing inconsistencies.
* To prevent this, Huawei routers automatically detect duplicate Router IDs and prevent OSPF from functioning properly until the issue is resolved.
# Reference: Huawei HCIA-Datacom Study Guide, Chapter on OSPF LSAs and Router ID Uniqueness.
NEW QUESTION # 17
On an enterprise WLAN where Portal authentication is deployed, an AC functions as an access device and communicates with a Portal server using the Portal protocol. Which of the following statements are true about the Portal protocol?
Answer: A,B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Portal Authentication:
* Portal authentication uses a web-based mechanism where clients are redirected to a login page.
* Communication between the access device and Portal server uses HTTP or HTTPS protocols.
* Correct Statements:
* Option A: HTTP or HTTPS is used for Portal authentication.
* Option D: Portal protocol packets are transmitted over TCP for reliable communication.
* Incorrect Statements:
* Option B: Port 2000 is not the default for processing Portal packets.
* Option C: The default destination port for communication with the Portal server is not 50100.
References:
* HCIA-Datacom Study Guide, Chapter: WLAN Portal Authentication
Huawei WLAN Authentication Protocols
NEW QUESTION # 18
On an enterprise network, the directly connected interfaces of two OSPF routers are on different network segments and have different masks. To establish an OSPF neighbor relationship between the two interfaces, you can change their network types to which of the following?
Answer: B
Explanation:
When OSPF routers have interfaces on different network segments with different subnet masks, the network type can be adjusted to establish adjacency. A point-to-point (P2P) network type eliminates the requirement for matching subnet masks by treating the link as directly connected without intermediate devices.
* P2P Network Characteristics
* OSPF treats the link as a direct connection between two routers.
* No DR/BDR election occurs, simplifying adjacency establishment.
* Subnet mask differences do not hinder neighbor relationships as the link is viewed as a logical tunnel.
* HCIP-Datacom-Core Reference
* The OSPF configuration section explicitly mentions P2P as a suitable network type for resolving adjacency issues caused by mismatched subnet masks.
NEW QUESTION # 19
The VRID of the VRRP virtual router is 3 and the virtual IP address is 100.1.1.10. What is the virtual MAC address?
Answer: A
Explanation:
The virtual MAC address for a VRRP virtual router is determined by the formula 00-00-5E-00-01-[VRID in hexadecimal]. For VRID 3, the hexadecimal equivalent is 03. Thus, the virtual MAC address is 00-00-5E-00-
01-03 .
NEW QUESTION # 20
On an STP network, only the designated port processes inferior BPDUs. On an RSTP network, a port with any role processes inferior BPDUs.
Answer: A
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* STP and RSTP Behavior:
* STP: Only the designated port processes inferior BPDUs. Inferior BPDUs are received from downstream switches and typically indicate topology changes.
* RSTP: All ports, regardless of role (root, designated, or alternate), process inferior BPDUs to ensure faster convergence.
* Behavior Difference:
* RSTP improves convergence by allowing any port to process inferior BPDUs, unlike STP, which restricts this function to designated ports.
References:
* HCIA-Datacom Study Guide, Chapter: STP vs RSTP
Huawei STP and RSTP Configuration Comparison
NEW QUESTION # 21
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