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Huawei HCIE-Datacom V1.0 Sample Questions (Q165-Q170):
NEW QUESTION # 165
Which of the following statements aboutOPS (Open Programmability System) application scenariosisincorrect?
Answer: B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
A: Correct:OPS can use themaintenance assistantto triggerPython scriptsperiodically or based on events.
B: Correct:OPS supportsautomatic deploymentusing Python scripts to download software and configuration files.
C: Incorrect:OPS doesnot inherently provide local storagefor temporarily saving execution results when the network is disconnected. This would require additional programming logic in the script itself, which is not a built-in feature of OPS.
D: Correct:OPS can run scripts toautomatically check device healthand report the status.
Therefore, the incorrect statement isC.
NEW QUESTION # 166
In addition to indicating priority, the DSCP value can also indicate the drop probability. Which of the following DSCP values is set with the highest drop probability?
Answer: D
Explanation:
Understanding DSCP & Assured Forwarding (AF) Classes
* DSCP (Differentiated Services Code Point) is used for QoS (Quality of Service) classification in IP packet headers.
* Assured Forwarding (AF) classes provide four traffic classes (AF1x, AF2x, AF3x, AF4x).
* Each AF class has three drop precedence levels (Low = 1, Medium = 2, High = 3).
A screenshot of a computer AI-generated content may be incorrect.
Analysis of Options:
* AF43 (Answer A) # Class 4, High Drop (Highest priority, highest drop probability) #
* AF10 (Answer B) # Class 1, Low Drop (Lowest priority, lowest drop probability) #
* AF12 (Answer C) # Class 1, Medium Drop Probability #
* AF11 (Answer D) # Class 1, Low Drop Probability #
Why AF43?
* Highest priority traffic within AF Class 4.
* Highest drop probability (x3) means packets are dropped first under congestion.
* Used for premium but non-essential services (e.g., bulk data transfer, backups).
# Reference: Huawei HCIE-Datacom Guide - QoS & DSCP Marking
NEW QUESTION # 167
Network Admission Control (NAC) needs to be deployed on the network shown in the figure. Drag a proper authentication mode to each authentication point.
Answer:
Explanation:
Explanation:
Correct Matching of Authentication Methods:
1# 802.1X authentication # PC (GE0/0/2 on SW3)2# MAC address authentication # IP Phone (GE0/0/3 on SW3)3## Portal authentication # Wireless Clients (Connected via SW2/AP) Understanding Network Admission Control (NAC) Authentication Methods
# Network Admission Control (NAC) enforces security policies before allowing devices onto the network
.# Different types of devices require different authentication methods based on capabilities and security requirements.
Analysis of Each Authentication Type:
# 1## 802.1X Authentication (Used for PC on GE0/0/2 of SW3)
* Best for devices that support user authentication (e.g., PCs, Laptops).
* Requires supplicant software (e.g., Windows or macOS built-in 802.1X client).
* Provides strong security using EAP (Extensible Authentication Protocol) over RADIUS.
# 2## MAC Address Authentication (Used for IP Phone on GE0/0/3 of SW3)
* Best for devices that do not support username/password authentication (e.g., IP Phones, IoT devices).
* Uses MAC addresses as identity credentials.
* Suitable for VoIP networks, industrial IoT, and surveillance cameras.
# 3## Portal Authentication (Used for Wireless Clients on SW2/AP)
* Best for guests or mobile users accessing Wi-Fi networks.
* Redirects users to a web-based login page before granting access.
* Used in public hotspots, campus Wi-Fi, and enterprise guest networks.
Why These Assignments Are Correct?
1## 802.1X for PC:
* PCs support 802.1X authentication via supplicants (EAP-MD5, PEAP, etc.).
* Ensures high security by verifying user credentials.
2## MAC Address Authentication for IP Phone:
* IP Phones lack a username/password interface, so authentication is done via MAC addresses.
* Simplifies authentication while maintaining security.
3## Portal Authentication for Wireless Clients:
* Wireless users do not use 802.1X authentication directly; instead, they are redirected to a web login page.
* Common in enterprise guest Wi-Fi and public hotspots.
Real-World Application:
* Enterprise NAC Deployment: Ensures only authorized users and devices access the corporate network.
* Campus & Hotel Wi-Fi Security: Uses Portal Authentication for guests, 802.1X for employees, and MAC-based for VoIP.
# Reference: Huawei HCIE-Datacom Guide - NAC Authentication Methods & Best Practices
NEW QUESTION # 168
The LSA of type certainly does not exist in the 2
Answer: A,C,D
NEW QUESTION # 169
When you deploy BGP/MPLSIPVPN, when two VPNs have a common site, the common site must not use overlapping address spaces with the other sites of the two VPNs.
Answer: C,F
NEW QUESTION # 170
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