RELIABLE HUAWEI - NEW H12-821_V1.0 EXAM CAMP

Reliable Huawei - New H12-821_V1.0 Exam Camp

Reliable Huawei - New H12-821_V1.0 Exam Camp

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Huawei H12-821_V1.0 exam is intended for professionals who have a basic understanding of data communication and networking. HCIP-Datacom-Core Technology V1.0 certification is ideal for individuals who are looking to advance their career in the field of data communication, as it demonstrates their knowledge and expertise in this area. Additionally, the certification is highly valued by employers, which can lead to better job opportunities and higher salaries.

Huawei H12-821_V1.0 exam is an important certification for professionals who want to enhance their knowledge and expertise in the field of data communication. Passing H12-821_V1.0 exam can open up new career opportunities and boost your earning potential in the industry. With proper preparation and a solid understanding of the exam objectives, candidates can successfully Pass H12-821_V1.0 Exam and earn the HCIP-Datacom-Core Technology V1.0 certification.

Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) Exam is a certification exam designed to test the knowledge and skills of professionals in the field of data communications. It is an intermediate-level certification that covers a wide range of topics related to network architecture, protocols, and technologies. H12-821_V1.0 exam is intended to validate the knowledge and skills of professionals who are responsible for the design, implementation, and maintenance of data communication networks.

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q301-Q306):

NEW QUESTION # 301
On a P2P IS-IS network, after a neighbor relationship is established between R1 and R2, R2 finds that its LSDB is not synchronized. Then, R2 requests corresponding LSPs from R1 for LSDB synchronization. The following figure shows the synchronization process. Drag the following packet types to the steps in which they are used.(Token is reusable)

Answer:

Explanation:
Explanation of IS-IS Packet Types and Synchronization Process:
In the given scenario, R2 requests LSPs from R1 to synchronize its Link State Database (LSDB). The following IS-IS packet types are involved in this synchronization process:
1. P2P IIH (Point-to-Point IS-IS Hello):
* Purpose: Establishes and maintains IS-IS neighbor relationships.
* Step: This packet is exchanged initially to detect and maintain the adjacency between R1 and R2.
2. PSNP (Partial Sequence Number PDU):
* Purpose: Requests missing or outdated LSPs (Link State PDUs) from a neighbor to synchronize the LSDB.
* Step: In this case, R2 sends a PSNP to R1 to request the missing or outdated LSP.
3. LSP (Link State PDU):
* Purpose: Contains routing information and is used to update the LSDB.
* Step: R1 sends the requested LSPs to R2 for synchronization.
4. CSNP (Complete Sequence Number PDU):
* Purpose: Lists all LSPs in the sender's LSDB to help neighbors verify and request missing LSPs.
* Step: R1 sends a CSNP during retransmission timeout to notify R2 of its LSPs.


NEW QUESTION # 302
Which of the following statements is true about BGP?

  • A. Open messages carry only the BGP header.
  • B. 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.
  • C. IGP routes can be converted into BGP routes only through the network command.
  • D. A router cannot be configured with multiple BGP processes.

Answer: B

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 # 303
As shown in the figure, R1 imports the direct route 10.1.1.0/24 to OSPF. An engineer enables bidirectional route re-advertisement on R2 and R3, and configures the following commands on R3. After the network becomes stable, which of the following is thePrevalue of the route 10.1.1.0/24 in the routing table of R4?

[R3]acl 2000
[R3-acl-basic-2000] rule permit source 10.1.1.0 0
[R3-acl-basic-2000] quit
[R3]route-policy hcip permit node 10
[R3-route-policy-10] if-match acl 2000
[R3-route-policy-10] apply preference 14
[R3-route-policy-10] quit
[R3]ospf 1
[R3-ospf-1] preference ase route-policy hcip

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: D

Explanation:
Let's analyze the process step-by-step:
R1redistributes thedirect route 10.1.1.0/24intoOSPF.
This OSPF route reachesR2andR3.
R2 and R3 are in an environment that usesIS-IStowardsR4.
BothR2 and R3 re-advertisethis OSPF route into IS-IS toward R4 (bidirectional route redistribution).
OnR3, aroute-policy named hcipis applied to controlASE (Autonomous System External) route preference.
The ACL matches the route10.1.1.0/24.
The route-policy sets thepreferenceof this ASE route to14.
InHuawei VRP, if a route-policy applied via preference ase route-policy matches a route, itmodifies the preferencevalue of the redistributed route when it is advertised.
By default:
OSPF ASE routeshave apreference of 150.
But in this case, due to the policy applied, the preference is explicitly changed to14on R3 before re- advertising to R4.
So,R4will install the route10.1.1.0/24from R3 withpreference 14, assuming R2 doesn't provide a better preference.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"You can control the preference of OSPF ASE routes by using a route-policy and applying it with the command preference ase route-policy. When the policy matches, the specified preference is used instead of the default (150)." (Chapter: OSPF Advanced Features - Section: Route Control and Inter-AS Route Redistribution)


NEW QUESTION # 304
Which of the following statements is false about the default processing of the next hop address when a BGP device advertises a route?

  • A. When advertising a non-labeled route received from an EBGP peer to an IBGP peer, a BGP device changes the next hop address to the IP address of its interface connected to the IBGP peer.
  • B. When advertising a route to an EBGP peer, a BGP device sets the next hop address to the IP address of its interface connected to the peer.
  • C. A BGP device does not change the next hop address of a route if the route is received from an IBGP peer and is to be sent to another IBGP peer.
  • D. When advertising a locally originated route to an IBGP peer, a BGP device sets the next hop address to the IP address of its interface connected to the peer.

Answer: A

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Default Next Hop Behavior in BGP:
* Locally Originated Routes (A): The next hop is set to the advertising router's interface IP address.
* Routes Received from EBGP (B): The next hop is not changed when these routes are advertised to IBGP peers. (This makes Option B false.)
* Routes Advertised to EBGP (C): The next hop is set to the interface IP address of the advertising router.
* Routes Advertised Between IBGP Peers (D): The next hop is not modified by default.
* Incorrect Statement:
* Option B is incorrect because the next hop of a non-labeled route received from an EBGP peer is not changed when it is advertised to IBGP peers.
References:
* HCIA-Datacom Study Guide, Chapter: BGP Next Hop Behavior
Huawei BGP Routing Principles


NEW QUESTION # 305
ICMPv6 messages are classified as error or informational messages.

  • A. TRUE
  • B. FALSE

Answer: A

Explanation:
ICMPv6 messages are classified into two types: error messages (e.g., Destination Unreachable, Time Exceeded) and informational messages (e.g., Echo Request, Echo Reply). This classification is fundamental to ICMPv6's operation .


NEW QUESTION # 306
......

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