DOWNLOAD REALVCE HUAWEI H12-821_V1.0 EXAM DUMPS TODAY AND START THIS JOURNEY

Download RealVCE Huawei H12-821_V1.0 Exam Dumps Today and Start this Journey

Download RealVCE Huawei H12-821_V1.0 Exam Dumps Today and Start this Journey

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Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) Certification Exam is a professional-level certification that validates the knowledge and skills of candidates in the area of Datacom-Core Technology. H12-821_V1.0 exam is designed to test the candidate's ability to configure and troubleshoot complex network infrastructures, as well as to understand advanced concepts related to network design and implementation. It is a highly sought-after certification for professionals who want to demonstrate their expertise in the field of Datacom-Core Technology.

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q228-Q233):

NEW QUESTION # 228
A filter named si is configured on a device using the as-path-filter command and is applied to a specified BGP peer. The detailed configurations are as follows:
csharp
Copy
[SW1] ip as-path-filter si permit _65500$
[SW1] bgp 65100
[SW1-bgp] ipv4-family unicast
[SW1-bgp-af-ipv4] peer 10.1.1.2 as-path-filter si import
After the configuration is complete, which of the following statements is true about the way the local device processes the routes received from the peer?

  • A. It accepts only the routes whose AS_Path contains AS 65500.
  • B. It accepts only the routes originated from AS 65500.
  • C. It accepts only the routes forwarded by AS 65500.
  • D. It accepts only the routes that last pass through AS 65500.

Answer: D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Understanding the AS-Path Filter:
* The as-path-filter command is used in BGP to filter routes based on the AS_PATH attribute.
* In this configuration:
* The filter si is defined with the regular expression _65500$.
* The _65500$ expression specifies that the AS_PATH must end with 65500, meaning that the route's last hop must have passed through AS 65500.
2. Option Analysis:
Option A: It accepts only the routes whose AS_Path contains AS 65500.
* Incorrect.
* The _65500$ filter specifically matches routes where AS 65500 is the last AS in the AS_PATH. A route may contain AS 65500 somewhere in the middle of the AS_PATH but will not match this filter unless it is the last AS.
Option B: It accepts only the routes originated from AS 65500.
* Incorrect.
* Routes that originate from AS 65500 have an AS_PATH that starts with 65500. However, the filter
_65500$ only matches routes where AS 65500 is the last AS, not the first AS.
Option C: It accepts only the routes that last pass through AS 65500.
* Correct.
* The _65500$ filter ensures that the AS_PATH ends with 65500. This means that the route must have last passed through AS 65500 before being received by the local BGP router.
Option D: It accepts only the routes forwarded by AS 65500.
* Incorrect.
* While AS 65500 may forward the route, this is not what the filter _65500$ specifically checks for. It only ensures that AS 65500 is the last AS in the AS_PATH.
3. Summary:
* The as-path-filter with _65500$ accepts only the routes where AS 65500 is the last AS in the AS_PATH.


NEW QUESTION # 229
ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?

  • A. If the firewall security policy permits packets to pass, the session table is created.
  • B. By default, when status detection is disabled and the permit policy is configured packets can pass.
  • C. If the firewall security policy permits packets to pass, the packets can pass the firewall.
  • D. Packets must pass the firewall, and a session table is established.

Answer: C

Explanation:
In a stateful inspection firewall, if the status detection mechanism is enabled, it tracks and validates the state of connections using the session table. If there is no session table and a SYN+ACK packet reaches the firewall, it checks the security policy. If the policy explicitly permits the packet, it will pass through the firewall, but no session table will be created without the initial SYN packet. The other options are either incorrect or misrepresent the behavior of stateful inspection .


NEW QUESTION # 230
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 # 231
On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2. In this case, which of the following routing entries may exist in the routing table of R2?

  • A. 10.1.1.0/24
  • B. 10.1.4.0/24
  • C. 10.1.3.0/24
  • D. 10.1.2.0/24

Answer: B,C,D

Explanation:
Configuration Analysis:
* On R2, the following configuration has been applied:
acl 200
rule deny source 10.1.0.0 0.0.3.0
rule permit
#
ospf 1
filter-policy 2000 import
* This configuration uses ACL 200 to filter routes during import into the OSPF routing table on R2.
* Rule deny source 10.1.0.0 0.0.3.0: Blocks routes in the range 10.1.0.0/24 to 10.1.3.0/24 (inclusive).
* Rule permit: Allows all other routes to be imported.
* Impact of ACL 200 on Route Import:
* 10.1.0.0/24 to 10.1.3.0/24: These subnets are explicitly denied by ACL 200 and will not appear in R2's routing table.
* 10.1.4.0/24 and beyond: These subnets are permitted by the rule permit statement and will be imported into R2's routing table.
* Routing Table Entries on R2:
* Option A (10.1.4.0/24): Exists in R2's routing table because it is permitted.
* Option B (10.1.3.0/24): Does not exist because it is denied by ACL 200.
* Option C (10.1.2.0/24): Does not exist because it is denied by ACL 200.
* Option D (10.1.1.0/24): Does not exist because it is denied by ACL 200.
* A (10.1.4.0/24)
Correct Options:References:
* HCIA-Datacom Study Guide, Chapter: OSPF Route Filtering
* Huawei ACL Configuration for Route Policies


NEW QUESTION # 232
Four routers run IS-IS and have established adjacencies. The area IDs and router levels are marked in the following figure. Which of the following statements is true?

  • A. The LSDB of R2 does not contain the LSP of R4.
  • B. The LSDB of R2 does not contain the LSP of R3.
  • C. The LSDB of R3 does not contain the LSP of R4.
  • D. The LSDB of R1 does not contain the LSP of R4.

Answer: D

Explanation:
R1 is a Level-1 router in Area 49.0001, while R4 is in Area 49.0004. Level-1 routers only maintain LSDBs for their own area and do not contain LSPs from other areas, such as R4's LSP.
R2 is a Level-1-2 router, so it maintains LSDBs for both Area 49.0001 (Level-1) and Level-2 domains, which include LSPs from R4.
R3 and R4, as Level-2 routers, exchange LSPs with each other within the Level-2 domain.
Thus, the LSDB of R1 does not include R4's LSP .


NEW QUESTION # 233
......

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