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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Automation Technologies and Practice | 17% | - Huawei Automation Solutions
|
| Topic 2: Advanced Routing and Switching Technologies | 37% | - Advanced Switching Technologies
|
| Topic 3: Bearer WAN Planning and Deployment | 15% | - High-level Technology Deployment
|
| Topic 4: WAN Interconnection Network Planning and Deployment | 8% | - WAN Service Optimization
|
| Topic 5: Campus Network Planning and Deployment | 23% | - Campus Network Service Deployment
|
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NEW QUESTION # 226
A network administrator runs the display telemetry subscription command on a device to check telemetry subscription information. The command output is as follows. Which of the following statements is incorrect?
[~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 20030 RESOLVED - GRPC
Sub state : PASSIVE
Total subscription number is : 1
Answer: B
Explanation:
A). The device sends sampled data every second#Correct, since sample interval is 1000ms = 1 second.
B). The subscription mode is static subscription#Correct, as shown by Sub state: PASSIVE. Passive indicates astatic subscription.
C). The IP address of the device is 192.168.56.1#Incorrect- this IP address is thedestination (telemetry collector),notthe device's own IP.
D). The subscription name is Sub1#Correct, as per Sub name : Sub1.
Correct answer: C. The IP address of the device is 192.168.56.1- this is incorrect because it ' s actually the collector's IP, not the device ' s.
Reference:Huawei HCIE-Datacom V1.0 Study Guide -Chapter: Telemetry and Network VisibilitySection:
Displaying Subscription Information
NEW QUESTION # 227
A VGMP packet is encapsulated with a UDP header and a VGMP header. By default, a VGMP packet uses UDP port _____.
Answer:
Explanation:
512
Explanation:
Understanding VGMP (Virtual Gateway Management Protocol)
# What is VGMP?
* VGMP (Virtual Gateway Management Protocol) is used in Huawei firewalls to manage hot standby (HRP - Hot Standby Routing Protocol).
* Ensures that the active and standby firewalls synchronize their states for high availability.
# How Does VGMP Work?
* The Active and Standby firewalls exchange VGMP packets to maintain state synchronization.
* These packets are encapsulated within UDP for transport.
* The default UDP port for VGMP is 512.
Why is the Answer 512?
# Huawei firewalls use UDP port 512 by default for VGMP communication.# This ensures that VGMP heartbeats and synchronization messages are correctly processed.
Real-World Application:
* Enterprise Firewalls: VGMP ensures failover between active and standby firewalls.
* Carrier-Grade Firewalls: Uses VGMP with HRP to achieve zero-downtime firewall redundancy.
# Reference: Huawei HCIE-Datacom Guide - VGMP and HRP High Availability Mechanisms
NEW QUESTION # 228
What are the three ways to send IPv4 messages?
Answer: A,B,D
NEW QUESTION # 229
Huawei Open Programmability System (OPS) uses standard HTTP methods to access managed objects to manage network devices. Which of the following HTTP methods is used to configure the value of a network device ' s managed object?
Answer: B
Explanation:
Huawei Open Programmability System (OPS) is a programmable network architecture that uses RESTful APIs. In RESTful operations:
GET # Retrieve data
PUT # Configure/replace the value of a managed object
POST # Create new resources or perform non-idempotent operations
PATCH # Partially update a resource
When configuring or updating the value of a managed object (fully replacing it), PUT is the correct method.
Exact Extract - Huawei OPS and RESTful API Guide:
"The PUT method is used to configure the value of a managed object, replacing the entire object if it exists." Reference:
Huawei OPS Programming Guide
HCIE-Datacom Study Guide - Programmability and APIs Module
NEW QUESTION # 230
K company has two types of network services: UDP-based real-time video streaming services and TCP-based FTP download services. The company's network administrator often receives complaints that the FTP download speed is slow or unstable. What are the possible causes?
Answer: A,C
Explanation:
Comprehensive and Detailed Explanation:
Key Factors Affecting FTP Performance:
Tail Drop and TCP Synchronization (A)#
Tail Dropcauses TCPglobal synchronization, reducing FTP speeds drastically when congestion occurs.
Since FTP isTCP-based, packet loss due to tail drop forcesTCP retransmissions, further degrading performance.
Priority Preemption by Video Traffic (D)#
UDP-based real-time video trafficis often prioritized overTCP-based trafficto avoid jitter and packet loss.
If video traffic hashigher QoS priority, FTP bandwidth may bepreempted, leading toslow speeds.
Incorrect Options:
#Option B:PQ scheduling typically prioritizes latency-sensitive traffic (VoIP), but this scenario does not mention priority queuing for FTP.
#Option C:No information about an explicitrate limiton FTP traffic.
#Reference:Huawei HCIE Datacom - QoS and Congestion Control
NEW QUESTION # 231
......
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