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Free PDF Quiz Useful Huawei - H12-821_V1.0 - Valid HCIP-Datacom-Core Technology V1.0 Exam Guide

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Huawei H12-821_V1.0 Certification Exam is intended for professionals who have experience working with Huawei data communication products and solutions. H12-821_V1.0 exam is designed to test candidates' understanding of the latest technologies and trends in the field of data communication, and their ability to apply this knowledge to real-world scenarios. HCIP-Datacom-Core Technology V1.0 certification is suitable for network engineers, network architects, and other IT professionals who are responsible for designing and managing data communication networks in their organizations. It is a valuable credential that can help IT professionals advance their careers and increase their earning potential.

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q294-Q299):

NEW QUESTION # 294
BGP is a distance-vector protocol that implements route reachability between ASs and selects optimal routes.
Which of the following statements are true about this protocol?

A. BGP supports automatic peer discovery.
B. BGP provides various routing policies.
C. BGP uses TCP as the transport layer protocol.
D. BGP does not support authentication. Therefore, it cannot ensure network security.

Answer: B,C

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Overview of BGP:
BGP (Border Gateway Protocol) is an Exterior Gateway Protocol (EGP) designed to exchange routing information between different Autonomous Systems (ASs) on the internet. Unlike traditional distance-vector protocols (like RIP), BGP is considered a path-vector protocol, as it not only determines reachability but also ensures policy-based routing decisions and advanced path selection mechanisms.
2. Analysis of Each Option:
Option A: BGP does not support authentication. Therefore, it cannot ensure network security.
* This statement is incorrect.
* BGP supports authentication using mechanisms such as TCP MD5 (Message Digest 5) and TCP-AO (Authentication Option). These authentication mechanisms ensure that BGP messages are not tampered with or intercepted during transmission, enhancing network security.

NEW QUESTION # 295
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. 0000-5e01-0101
B. 0000-5e01-0254
C. 0000-5e00-0101
D. 0000-5e00-0254

Answer: C

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 # 296
The Interface P address and VRRP virtual IP address can be the same.

A. FALSE
B. TRUE

Answer: B

NEW QUESTION # 297
In BGP, the AS_Path attribute records the numbers of all ASs that a route passes through from the local end to the destination in the vector order.
Which of the following statements is false about the attribute change during route transmission?

A. When advertising the route to an IBGP peer, the BGP speaker creates an empty AS_Path in the Update message.
B. When advertising the route to an EBGP peer, the BGP speaker adds the local AS number to the end of the AS_Path.
C. When advertising the route to an IBGP peer, the BGP speaker does not change the AS_Path attribute of the route.
D. When advertising the route to an EBGP peer, the BGP speaker creates an AS_Path carrying the local AS number in the Update message.

Answer: A

Explanation:
OptionA is false. When advertising a route to an IBGP peer, theBGP speaker does not modifythe AS_Path. It simply advertises the routeas-is, preserving the AS_Path learned from EBGP.
Clarification of the options:
Bis correct: When a route is sent to an EBGP peer, the local AS is prepended to the AS_Path.
Cis correct: The AS_Path begins with the local AS when a new route is advertised to an EBGP neighbor.
Dis correct: IBGP doesnotmodify AS_Path when passing routes within the same AS.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"BGP speakers prepend their AS number to the AS_Path only when advertising to EBGP peers. IBGP peers do not alter the AS_Path." (Chapter: BGP Path Attributes - Section: AS_Path)

NEW QUESTION # 298
An edge port is a new port role added to RSTP to overcome the disadvantages of STP. Which of the following statements is false about this port role?

A. The Up and Down states of the port do not cause network topology changes.
B. After receiving a configuration BPDU, the port is still in the Forwarding state.
C. The port does not participate in RSTP calculation.
D. The port can directly enter the Forwarding state from the Discarding state.

Answer: B

Explanation:
Edge Port Behavior
* An edge port transitions directly to the Forwarding state but reverts to participating in RSTP calculations if it receives a valid configuration BPDU. Thus, statement C is false.
HCIP-Datacom-Core Reference
* The behavior of edge ports and their transitions are discussed in the RSTP enhancement sections.

NEW QUESTION # 299
......

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