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| Section | Objectives |
|---|---|
| Topic 1: Enterprise Network Architecture | - Network design principles
|
| Topic 2: Network Security and QoS | - QoS mechanisms
|
| Topic 3: WAN and VPN Technologies | - MPLS fundamentals
|
| Topic 4: Data Center and Virtualization Technologies | - VXLAN and overlay networks
|
| Topic 5: IPv6 and Advanced IP Technologies | - IPv6 deployment
|
| Topic 6: Routing and Switching Technologies | - IP routing protocols
|
| Topic 7: Network Automation and Programmability | - SDN and automation
|
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NEW QUESTION # 91
Router HW1 and Router HW2 connect Network A and Network B, respectively. As shown in the figure below, if you want to set up an IPsec VPN between router HWI and router HW. (single selection).
Answer: D
NEW QUESTION # 92
When an SSH client logs in to an SSH server that is configured only with username and password authentication in SSH mode, the key exchange phase is not involved (no key is generated).
Answer: B
Explanation:
Understanding SSH Authentication and Key Exchange
๐น What Happens When an SSH Client Connects to a Server?
1๏ธโฃ Key Exchange Phase (KEX)
Even if only password authentication is used, SSH still performs key exchange.
The server and client negotiate encryption keys using algorithms like Diffie-Hellman (DH).
2๏ธโฃ User Authentication Phase
After encryption keys are exchanged, the user authenticates using a username and password.
Why is the Answer FALSE?
โ Even with password authentication, SSH still performs key exchange to establish an encrypted session.
โ
The SSH session is always encrypted using cryptographic keys generated during KEX.
Real-World Application:
Secure Remote Access: Protects login credentials from MITM (Man-in-the-Middle) attacks.
Cloud & Datacenter Networks: Ensures secure SSH connections across remote infrastructure.
โ
Reference: Huawei HCIE-Datacom Guide - SSH Key Exchange and Authentication
NEW QUESTION # 93
After BGP introduces routes for other protocols, the next hop in the BGP routing table is consistent with the next hop of the introduced routing protocol
Answer: A
NEW QUESTION # 94
Telemetry data must be encoded in GPB binary format. This format reduces the number of bytes in telemetry messages and improves the transmission efficiency compared with messages encoded in JSON format.
Answer: B
Explanation:
Understanding Telemetry Encoding Formats
#What is Telemetry?
Telemetry is a real-time network monitoring methodthat provideshigh-frequency data collection.
Used inAI-driven networks for predictive analytics and automation.
#Common Telemetry Encoding Formats:
#GPB (Google Protocol Buffers)
Highly efficient binary formatthat reducesmessage size and CPU overhead.
Commonly used forhigh-speed, real-time analytics.
#JSON (JavaScript Object Notation)
Human-readable format, widely used inRESTful APIs.
Less efficientthan GPB in high-speed telemetry buteasier to debug.
#Why is the Answer FALSE?
#GPB is not mandatory; JSON can also be used in telemetry.
#Huawei supports both GPB and JSON telemetry encoding formats.
Real-World Application:
Cloud Networking:UsesGPB for fast data collectionandJSON for API-based telemetry visualization.
AI-Driven Networks:High-speedAI analyticsleverageGPB encodingfor efficiency.
#Reference:Huawei HCIE-Datacom Guide - Telemetry Encoding Formats and Data Collection
NEW QUESTION # 95
In SSP packages, Jinja2 templates are used to implement mapping. In the Jinja2 syntax, {% ... %} contains control structures, for example, a 'for' loop.
Answer: A
Explanation:
Understanding Jinja2 Templates in Huawei SSP Packages
# What is Jinja2?
* Jinja2 is a templating engine used in Huawei SSP (Smart Script Package) automation.
* It allows dynamic configuration generation based on variables and logic.
# Jinja2 Syntax Basics:# {% ... %} # Used for control structures like loops and conditions.# {{ ... }} # Used for variable placeholders.
Example of a Jinja2 Template Using {% ... %} for a Loop:
jinja2
CopyEdit
{% for interface in interfaces %}
interface {{ interface.name }}
description {{ interface.description }}
{% endfor %}
# This template dynamically generates interface configurations based on a list of interfaces.
Why is the Answer TRUE?
# {% ... %} is used for control structures in Jinja2 templates (e.g., loops, if-else statements).# Jinja2 templates are widely used in SSP for Huawei network automation.
Real-World Application:
* Automated Network Configuration: Uses Jinja2 in Huawei SSP automation scripts.
* Data Center & SDN Automation: Dynamically generates VXLAN, BGP, and OSPF configurations.
# Reference: Huawei HCIE-Datacom Guide - Jinja2 Templates in SSP Packages
NEW QUESTION # 96
......
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