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Excellent Standard H12-821_V1.0 Answers & Leader in Qualification Exams & Trusted Huawei HCIP-Datacom-Core Technology V1.0

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Huawei H12-821_V1.0 exam is intended for individuals with a solid foundation in data communications and a strong understanding of network protocols and technologies. It is an intermediate-level certification that requires candidates to have prior experience in the field of data communications. 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.

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q304-Q309):

NEW QUESTION # 304
When deploying a VRRP network, an enterprise administrator sets the virtual IP address to 192.168.1.254 and VRID to 1. Which of the following is the virtual MAC address after the network becomes stable?

A. 0000-5e00-0254
B. 0000-5e00-0101
C. 0000-5e01-0101
D. 0000-5e01-0254

Answer: B

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
VRRP Virtual MAC Address Format:
The VRRP virtual MAC address is generated using the format:0000-5e00-01XX, whereXXrepresents the VRID in hexadecimal.
Calculation:
VRID = 1 # Hexadecimal =01.
Virtual MAC =0000-5e00-0101.
Correct Option:
C (0000-5e00-0101).
References:
HCIA-Datacom Study Guide, Chapter: VRRP MAC Address Format
Huawei VRRP Configuration Guidelines
Let me continue with the next set of questions!

NEW QUESTION # 305
To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non-backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.

A. FALSE
B. TRUE

Answer: B

NEW QUESTION # 306
During routine operation and maintenance, an engineer checks the IGMP configuration on RTA. The configuration is as follows:
Interface information of VPN-Instance: public net
GigabitEthernet0/0/1 (192.168.1.1):
IGMP is enabled
Current IGMP version is 2
IGMP state: up
IGMP group policy: none
IGMP limit: -
Value of query interval for IGMP (negotiated): -
Value of query interval for IGMP (configured): 60 s
Value of other querier timeout for IGMP: 0 s
Value of maximum query response time for IGMP: 10 s
Querier for IGMP: 192.168.1.1 (this router)
Given this, which of the following statements is false?

A. The maximum response time to Query messages is 10s.
B. The IP address of the interface is 192.168.1.1.
C. The IGMP version is IGMPv2.
D. The interval for sending Group-Specific Query messages is 60s.

Answer: D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Understanding IGMP (Internet Group Management Protocol):
* IGMP is used in multicast networking to manage membership of devices in multicast groups.
* Key parameters in the configuration provided:
* Interface IP Address: 192.168.1.1
* IGMP Version: 2
* Query Interval (Configured): 60 seconds
* Maximum Query Response Time: 10 seconds
* Querier Address: 192.168.1.1
2. Analysis of Each Statement:
Option A: The IP address of the interface is 192.168.1.1.
* Correct (True Statement).
* The configuration clearly shows that the IP address of the interface is 192.168.1.1.
Option B: The maximum response time to Query messages is 10s.
* Correct (True Statement).
* The configuration explicitly mentions: Value of maximum query response time for IGMP: 10 s.
Option C: The interval for sending Group-Specific Query messages is 60s.
* Incorrect (False Statement).
* The 60-second value refers to the query interval, which is the time interval between general queries sent by the querier.
* The interval for group-specific queries is not specified in this configuration. It is determined dynamically based on the multicast environment and is usually shorter than the general query interval.
Option D: The IGMP version is IGMPv2.
* Correct (True Statement).
* The configuration specifies: Current IGMP version is 2.
3. Why Option C is False:
* The 60-second value is for general query interval, not group-specific query interval.
* The statement misinterprets the configuration, making it false.
4. Summary:
* Correct answer: C (The interval for sending Group-Specific Query messages is 60s).

NEW QUESTION # 307
A route-policy can have multiple nodes, and each node can have multiple if-match and apply clauses. Which of the following statements are false?

A. The operator between if-match clauses under a node is OR.
B. The operator between if-match clauses under a node is AND.
C. The operator between nodes is AND.
D. The operator between nodes is OR.

Answer: A,C

Explanation:
The operator between if-match clauses under a node is AND, meaning all conditions must be satisfied.
However, the operator between nodes is OR, meaning a route matching any node will pass the route-policy .

NEW QUESTION # 308
Depending on the type of algorithms used, routing protocols are classified into distance-vector protocols and link-state protocols. Which of the following routing protocols are link-state protocols?

A. IS-IS
B. RIP
C. BGP
D. OSPF

Answer: A,D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Distance-Vector Protocols:
* Distance-vector protocols determine the best path based on the distance to a destination and periodically share the entire routing table with neighbors.
* Example: RIP is a distance-vector protocol.
* Link-State Protocols:
* Link-state protocols share information about directly connected links, enabling routers to build a complete map of the network.
* OSPF (Open Shortest Path First) and IS-IS (Intermediate System to Intermediate System) are link-state protocols that use Dijkstra's algorithm to calculate the shortest path.
* Border Gateway Protocol (BGP):
* BGP is neither a distance-vector nor a link-state protocol. Instead, it is classified as a path-vector protocol that selects the best path based on attributes such as AS-path, next-hop, and local preference.
References:
* HCIA-Datacom Study Guide, Chapter: Routing Protocol Basics
Huawei Networking Fundamentals, Section: Classification of Routing Protocols

NEW QUESTION # 309
......

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