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100% Pass Huawei - H12-891_V1.0 - Reliable HCIE-Datacom V1.0 Exam Collection Pdf

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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam is a professional-level certification exam designed to test the skills and knowledge of networking professionals who work with data communication networks. H12-891_V1.0 Exam is intended for individuals who have a deep understanding of data communication technologies, including routing and switching, TCP/IP protocols, MPLS, and VPNs.

Huawei HCIE-Datacom V1.0 Sample Questions (Q137-Q142):

NEW QUESTION # 137
Which of the following statements about BGP EVPN principles are correct in a scenario where a VXLAN tunnel is dynamically established through BGP EVPN?

A. Several BGP EVPN routes are defined through BGP extension.
B. MP_REACH_NLRI is used to carry the RD.
C. MP_REACH_NLRI is used to carry routing information.
D. MP_REACH_NLRI is used to carry the RT.

Answer: A,C,D

Explanation:
BGP EVPN in VXLAN Tunneling
#A. MP_REACH_NLRI is used to carry routing information.
MP_REACH_NLRI (Multiprotocol Reachable Network Layer Reachability Information)is used inBGP updatesto carryVXLAN reachability information.
#B. Several BGP EVPN routes are defined through BGP extension.
BGP EVPN introduces multiple route types, such asType 2 (MAC/IP Advertisement), Type 3 (Inclusive Multicast), and Type 5 (IP Prefix Advertisement).
#D. MP_REACH_NLRI is used to carry the RT.
RT (Route Target) defines route import/export policies in VPN environments.
MP_REACH_NLRI carries the RT attributein BGP EVPN updates.
#Incorrect answer:
#C. MP_REACH_NLRI is used to carry the RD.
Wrong!TheRoute Distinguisher (RD)is carriedinside BGP attributes, but not in MP_REACH_NLRI.
Reference from Huawei HCIE-Datacom Documentation:
Huawei VXLAN BGP EVPN Configuration Guide - BGP EVPN Route Types
HCIE-Datacom Training Material - VXLAN Dynamic Tunnel Establishment

NEW QUESTION # 138
A network administrator runs thedisplay telemetry subscriptioncommand on a device to check telemetry subscription information. The command output is as follows:
[~CE] display telemetry subscription
Sub-name : Sub1
Sensor group:
Sensor-name Sample-interval(ms) State
Sensor1 1000 RESOLVED
Destination group:
Dest-name Dest-IP Dest-port State Vpn-name Protocol
Dest1 192.168.56.1 20000 RESOLVED - GRPC
Sub-state : PASSIVE
Total subscription number is : 1
Which of the following statements is incorrect?

A. The IP address of the device is 192.168.56.1.
B. The subscription mode is static subscription.
C. The subscription name is Sub1.
D. The device sends sampled data every second.

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
Analyzing the output:
A: The device sends sampled data every second:Correct. Thesample interval is 1000 ms (1 second).
B: The subscription name is Sub1:Correct. Thesubscription nameis clearly shown asSub1.
C: The subscription mode is static subscription:Correct. Since theSub-stateisPASSIVE, it indicates astatic subscription.
D: The IP address of the device is 192.168.56.1:Incorrect. The IP address192.168.56.1shown in the output is thedestination IPwhere the telemetry data is sent, not the IP address of the device itself.

NEW QUESTION # 139
BGP authentication can prevent illegal routers from establishing neighbors with BGP routers, BGP authentication can be divided into MD5 authentication and Keychain authentication, please ask which BGP messages will be carried below BGPKeychain authentication information?( Multiple select).

A. Notification
B. Keeplive
C. Open
D. Update

Answer: A,B,C,D

NEW QUESTION # 140
In the admission design for large- and medium-sized campus networks, which of the following authentication modes can be used for PCs connected to IP phones?

A. Multi-mode authentication
B. 802.1X authentication
C. Portal authentication
D. MAC address authentication

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
In large- and medium-sized campus networks,Multi-mode authenticationis commonly used for PCs connected to IP phones. This is because multi-mode authentication allows:
Multiple authentication methods on the same interface,such as MAC address authentication for the IP phone and802.1X authentication for the PC.
This setup is ideal for scenarios where both devices share a single network port but require different authentication mechanisms.
MAC address authentication (A)and802.1X authentication (B)individually cannot accommodate both devices efficiently.
Portal authentication (D)is mainly used for guest access and is not practical for IP phone and PC connections.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei Campus Network Admission Control Guide

NEW QUESTION # 141
The following description of the TTL in the MPLS Header is correct:

A. To control label distribution
B. Limit LSR
C. Control of upstream devices for label distribution
D. A TTL that acts like an IP header and is used to prevent message loops

Answer: D

NEW QUESTION # 142
......

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