H12-811_V1.0 Exam Dumps - Huawei HCIA-Datacom Questions and Answers

Detailed Explanation:

Option B: OSPF supports triggered updates, allowing routing tables to be updated only when changes occur, conserving bandwidth.

Option D: OSPF supports area division, which is essential for optimizing large networks and limiting the scope of link-state advertisements.

Option A is incorrect because OSPF calculates the shortest path based on cost, not hop count.

Option C is incorrect; OSPF prevents routing loops by maintaining a loop-free topology through its link-state database.

(Reference: HCIA-Datacom Training Material, OSPF Features)

Comprehensive Explanation: In Telnet sessions, different privilege levels determine what actions a user is allowed to perform. If users are not able to configure the IP address, it is likely that their privilege level is set incorrectly. The administrator must ensure that the Telnet users are assigned the correct privilege level (typically level 15 for full administrative rights) to allow configuration changes, including IP address modifications.

Detailed Explanation:APs can be added to an AC using multiple methods. You can add them when they are online, offline, or allow the AC to automatically discover them. Additionally, unauthorized APs can be manually confirmed for security​.

The wildcard mask 0.0.254.255 means:

The first and third octets are checked exactly.

The second and fourth octets can vary.

This results in a match for IPs in the range 10.0.2.0 - 10.0.2.255.

Only option D (10.0.2.1) falls within this range.

Thus, the correct answer is D (10.0.2.1).

In OSPF (Open Shortest Path First), routers exchange database information in multiple stages.

ExStart State (Correct Answer):

The Master/Slave relationship is determined in this phase.

The router with the higher Router ID becomes the Master, and the other becomes the Slave.

The Master initiates the exchange of Database Description (DD) packets.

2-way State (Incorrect): This state is reached when two routers recognize each other as neighbors but have not started database exchange.

Exchange State (Incorrect): The actual exchange of DD packets happens in this state, but the Master/Slave roles are already established in ExStart.

Full State (Incorrect): This is the final state where routers have synchronized their link-state databases.

Thus, the correct answer is D (ExStart).

Routing Table and Equal-Cost Routes:When multiple routes to the same destination network have the same cost (e.g., metric or administrative distance), they are referred to as " equal-cost routes. " Routers use load balancing to distribute traffic across these routes​​.

Analysis of Options:

Option A: " Sub-optimal routes " are routes that are not preferred due to higher cost or less desirable metrics.

Option B: " Multipath routes " is a general term but does not specify equal cost, making it less precise.

Option C: " Equal-cost routes " is correct as the scenario specifies the same destination network with the same cost.

Option D: " Default routes " are used when no specific route matches the destination, which is unrelated to the given scenario​.

Correct Answer:The routes are C (Equal-cost routes).