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We provide the Huawei H12-891_V1.0 exam questions in a variety of formats, including a web-based practice test, desktop practice exam software, and downloadable PDF files. PracticeDump provides proprietary preparation guides for the certification exam offered by the H12-891_V1.0 Exam Dumps. In addition to containing numerous questions similar to the H12-891_V1.0 exam, the HCIE-Datacom V1.0 (H12-891_V1.0) exam questions are a great way to prepare for the Huawei H12-891_V1.0 exam dumps.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Exam is a certification exam designed to test individuals' knowledge and skills in data communication technologies. H12-891_V1.0 exam is intended for professionals who are seeking to advance their careers in the field of data communication and networking. HCIE-Datacom V1.0 certification is offered by Huawei Technologies Co., Ltd, a leading global provider of information and communication technology (ICT) solutions.

Huawei HCIE-Datacom V1.0 Sample Questions (Q68-Q73):

NEW QUESTION # 68
On a CloudCampus virtualized campus network, service data enters different VNs from physical networks through edge nodes, and the VN that the data will enter is determined by the VLANs to which users belong. Which of the following statements about dynamic VLAN authorization is incorrect?

A. When wired users pass MAC address authentication, they join the authorization VLANs delivered to edge nodes.
B. When wired users pass 802.1X authentication, they join the authorization VLANs delivered to edge nodes.
C. When wireless users pass 802.1X authentication, they join the authorization VLANs delivered to edge nodes.
D. When wireless users pass Portal authentication, they join the authorization VLANs delivered to edge nodes.

Answer: D

Explanation:
Dynamic VLAN Authorization in Huawei CloudCampus
Dynamic VLAN assignment allows users to be placed into specific VLANs based on authentication methods, ensuring security and network segmentation.
Correct Explanations:
# A. Wired users using 802.1X authentication receive VLAN assignments dynamically.
* After authentication, the access control system (e.g., iMaster NCE-Campus) assigns VLANs dynamically.
# C. Wireless users using 802.1X authentication also receive VLAN assignments.
* Similar to wired users, wireless 802.1X authentication allows dynamic VLAN assignment via the RADIUS server.
# D. Wired users using MAC authentication can receive VLAN assignments.
* If a user does not support 802.1X, MAC authentication can still be used to assign VLANs dynamically.
Incorrect Statement Explanation:
# B. When wireless users pass Portal authentication, they join the authorization VLANs delivered to edge nodes.
* Wrong! In Portal authentication, VLAN assignment is not dynamically delivered because Portal authentication typically applies access policies, not VLAN changes.
* Dynamic VLAN assignment is mainly used with 802.1X or MAC authentication.
Reference from Huawei HCIE-Datacom Documentation:
* Huawei CloudCampus Configuration Guide - Dynamic VLAN Assignment and Authentication
* HCIE-Datacom Training Material - VLAN Authorization in Virtualized Campus Networks

NEW QUESTION # 69
Which of the following is the type of northbound API used by iMaster NCE-WAN?

A. SNMP
B. CLI
C. NETCONF
D. RESTful

Answer: D

Explanation:
Comprehensive and Detailed Explanation:
# iMaster NCE-WAN provides a RESTful API for integration with third-party applications and network automation platforms.
# Why RESTful API?
* Uses HTTP/HTTPS for communication.
* Supports JSON and XML data formats.
* Enables orchestration, monitoring, and automation.
# Why Not Other Options?# (A) NETCONF # Used for device-level configuration, not northbound APIs.
# (B) SNMP # Used for network monitoring, not northbound integration.# (C) CLI # Used for manual command execution, not API communication.
# Reference: Huawei HCIE Datacom - iMaster NCE-WAN Northbound API

NEW QUESTION # 70
In a VXLAN scenario, which of the following features can be enabled to reduce ARP packet flooding between VTEPs?

A. Port isolation
B. Host information collection
C. Local proxy ARP
D. ARP broadcast suppression

Answer: B,C,D

Explanation:
VXLAN networks suffer from ARP flooding because ARP requests are broadcasted across all VTEPs in a Layer 2 domain. To reduce ARP flooding, the following mechanisms can be enabled:
# A. Local Proxy ARP
* Allows the local VTEP to respond to ARP requests without forwarding them across the VXLAN network.
* The VTEP caches MAC-IP mappings and replies directly to ARP requests, reducing unnecessary flooding.
# B. ARP Broadcast Suppression
* Converts ARP broadcast packets into unicast or multicast packets to minimize network-wide flooding.
# C. Host Information Collection
* Collects and stores MAC-IP bindings of endpoints, which can be used by proxy ARP to reduce flooding.
# D. Port Isolation
* Port isolation prevents communication between devices within the same VLAN but does not help reduce ARP flooding between VTEPs.
Reference from Huawei HCIE-Datacom Documentation:
* Huawei VXLAN Configuration Guide - ARP Optimization Techniques
* HCIE-Datacom Training Material - Reducing ARP Broadcasts in VXLAN Networks

NEW QUESTION # 71
An engineer needs to download the configuration file vrpcfg.cfg to a local device through SFTP, rename the configuration file to backup.cfg, and upload it to the default directory of the device.
The configuration file is located at /vrpcfg.cfg (default directory of the remote device), and the local directory is C:.
Which of the following Python Paramiko code lines can implement the required operations?

A. sftp.get('/vrpcfg.cfg', r'C:')
sftp.put(r'C:ackup.cfg', '/')
B. sftp.get('/vrpcfg.cfg', r'C:ackup.cfg')
sftp.put(r'C:ackup.cfg', '/')
C. sftp.get('/vrpcfg.cfg', r'C:rpcfg.cfg')
sftp.put('/backup.cfg', r'C:rpcfg.cfg')
D. sftp.get('/vrpcfg.cfg', r'C:ackup.cfg')
sftp.put(r'C:ackup.cfg', '/backup.cfg')

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
# The correct sequence of operations:
* Download the file from remote device (/vrpcfg.cfg) # Store as C:ackup.cfg.
* Upload the renamed file (backup.cfg) back to the remote device.
# Breaking Down the Correct Option (B):# sftp.get('/vrpcfg.cfg', r'C:ackup.cfg') # Downloads vrpcfg.
cfg from the remote device and renames it backup.cfg in C:.# sftp.put(r'C:ackup.cfg', '/') # Uploads backup.cfg back to the remote device.
# Reference: Huawei HCIE Datacom - Python SFTP File Transfer Using Paramiko

NEW QUESTION # 72
Regarding the mpLS handling mode of TTL, is the following description correct?

A. Unifore style, when an IP packet passes through the MPLS network, the IPTTL of the incoming node is minus l. The MPLS TTL field is a fixed value.
B. The TTL in the MPLS label has the same meaning as the TTL field in the head. TTL prevents mpLS networks from developing bad routing.
C. In MPLSVPI, if you need to hide the structure of the MPLS backbone network, you can use Uniform mode on Ingress for private network messages .
D. Pipe mode. When an IP message passes through the MPLS network, the IPTTL minus 1 is mapped to the WLSTTL field at the incoming node.

Answer: B

NEW QUESTION # 73
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Huawei H12-891_V1.0 Dumps PDF To Gain Brilliant Result (2025)

H12-891_V1.0 Certified, Valid H12-891_V1.0 Test Preparation

Huawei HCIE-Datacom V1.0 Sample Questions (Q68-Q73):