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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q223-Q228):

NEW QUESTION # 223
Regarding the route-policy set-cost configuration below, which of the following statements is true?

A. The cost of all routes is set to 200.
B. All the routes that are not permitted by node 10 will be denied.
C. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
D. The route 11.1.0.0/16 will continue to match node 20 after permitted by node 10, and (he final cost is set to 200.

Answer: C

Explanation:
The route-policy configuration specifies that node 10 matches the IP prefix 11.1.0.0/16 and applies a cost of
300 to this route. Once a route matches a node, it is no longer processed by subsequent nodes, making option D incorrect. Option B is also incorrect because only specific matching routes have their costs changed .

NEW QUESTION # 224
In a route-policy, which of the following BGP attributes can be used in apply clauses?

A. MED
B. Tag
C. Local-Preference
D. AS_Path

Answer: A,C,D

NEW QUESTION # 225
On an OSPF network, interfaces are classified into four types based on link layer protocols. Which of the following types can interfaces on an IS-IS network be classified into based on physical links?

A. P2MP
B. NBMA
C. P2P
D. Broadcast

Answer: C,D

Explanation:
IS-IS Interface Types
* IS-IS interfaces are categorized based on physical link characteristics:
* Point-to-Point (P2P): Direct connections between two routers.
* Broadcast: Shared medium networks where multiple routers communicate.
Incorrect Options
* C. P2MP and D. NBMA are not standard interface classifications in IS-IS.
HCIP-Datacom-Core Reference
* IS-IS physical link classifications are elaborated in IS-IS link configuration sections.

NEW QUESTION # 226
Which of the following statements is true about BGP?

A. Open messages carry only the BGP header.
B. IGP routes can be converted into BGP routes only through the network command.
C. A router cannot be configured with multiple BGP processes.
D. If the export routing policy applied to a BGP peer changes, manual intervention is required so that the device resends Update messages to the peer.

Answer: D

Explanation:
Export Routing Policy Changes
* When an export routing policy is modified, BGP does not automatically resend affected routes. Manual intervention, such as a clear ip bgp command, is required to resend Update messages reflecting the new policy.
Incorrect Options
* B. IGP routes can also be advertised into BGP using redistribution, not just the network command.
* C. A router can be configured with multiple BGP processes using different AS numbers (multi-instance BGP).
* D. Open messages carry additional parameters such as AS number, Hold Time, and Router ID, not just the header.
HCIP-Datacom-Core Reference
* BGP policy and update behavior are detailed in the route control and redistribution chapters.

NEW QUESTION # 227
The BFD Echo function checks the connectivity of the forwarding link by looping back packets. Which of the following statements are true about this function?

A. If URPF is enabled on the peer end, BFD packets may be incorrectly discarded on the peer end.
B. In the BFD Echo function, the device uses the IP address of the outbound interface as the source IP address by default.
C. When configuring a BFD session supporting the BFD echo function, you need to configure both the local and remote discriminators.
D. The BFD Echo function applies only to single-hop BFD sessions.

Answer: A,B

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is the BFD Echo Function?
BFD (Bidirectional Forwarding Detection) is used to detect link failures.
TheEcho functionis an optional feature that tests link connectivity by looping back packets sent from the local device through the forwarding path.
2. Analysis of Each Statement:
Option A: If URPF is enabled on the peer end, BFD packets may be incorrectly discarded on the peer end.
Correct.
URPF (Unicast Reverse Path Forwarding) checks whether the source IP address of an incoming packet is reachable via the interface it was received on. Since the Echo function uses loopback packets, this can conflict with URPF, causing the packets to be dropped.
Option B: In the BFD Echo function, the device uses the IP address of the outbound interface as the source IP address by default.
Correct.
By default, the outbound interface's IP address is used as the source address for BFD Echo packets.
Option C: The BFD Echo function applies only to single-hop BFD sessions.
Incorrect.
The BFD Echo function can be used for both single-hop and multi-hop BFD sessions.
Option D: When configuring a BFD session supporting the BFD Echo function, you need to configure both the local and remote discriminators.
Incorrect.
The BFD Echo function is locally configured and does not require setting remote discriminators. The function operates independently of the remote device's configuration.
3. Summary:
The correct statements areAandB.
Reference:
Huawei HCIA-Datacom Study Guide, Chapter "BFD Echo Function Configuration."

NEW QUESTION # 228
......

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James Walker James Walker

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