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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: WAN Interconnection Network Planning and Deployment | 8% | - WAN Service Optimization
|
| Topic 2: Network Automation Technologies and Practice | 17% | - Huawei Automation Solutions
|
| Topic 3: Advanced Routing and Switching Technologies | 37% | - Network Quality and Optimization
|
| Topic 4: Bearer WAN Planning and Deployment | 15% | - Bearer Network Architecture
|
| Topic 5: Campus Network Planning and Deployment | 23% | - Campus Network Service Deployment
|
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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
OSPF is deployed on a campus network to implement network interconnection. An engineer configures R2 as shown in the figure. Which of the following statements is incorrect about LSAs on the OSPF network?
Answer: B
Explanation:
#Analyze the Configuration:
[R2] acl 2000
[R2-acl-basic-2000] rule deny
[R2] ospf
[R2-ospf-1] area 1
[R2-ospf-1-area-0.0.0.1] filter 2000 import
[R2-ospf-1-area-0.0.0.1] quit
[R2-ospf-1] default-route-advertise always
#Understanding Key Concepts:
Type 3 LSAs (Inter-Area Routes):
Generated by ABRs to advertisesummary routesbetween areas.
Filtering Type 3 LSAsis possible using import filters (like in Area 1).
Type 5 LSAs (External Routes):
Flooded only within the same ASbutdo not enter stub or NSSA areas.
#Breakdown of the Options:
A: Type 5 LSAs are flooded in Area 1##Incorrect
If Area 1 is astub or NSSA, thenType 5 LSAs are not allowed.
Although the diagram does not explicitly say Area 1 is a stub/NSSA,real deployments often use stub areas at the edge (like Area 1).
More importantly,the filter is applied to Area 1, and there isno redistributionof external routes into Area 1 in the config.
Therefore, Type 5 LSAs wouldnot be floodedthere.
B: Type 3 LSAs are not flooded in Area 1##Correct
The command filter 2000 import with ACL rule deny meansType 3 LSAs are filtered from Area 0 into Area 1.
C: Type 3 LSAs are not flooded in Area 2##Correct
There isno filter applied to Area 2, so thiscould be false,butsince the question asks for the incorrect statement, this is not the answer.
D: Type 5 LSAs are flooded in Area 2##Correct
Area 2 is not shown to be stub or NSSA, and there's no filter or restriction configured.
Hence,Type 5 LSAs are allowedandflooded in Area 2.
#A. Type 5 LSAs are flooded in Area 1.
NEW QUESTION # 169
IPsec uses an asymmetric encryption algorithm to encrypt the symmetric algorithm key, which it uses to encrypt/decrypt data, ensuring security and performance.
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
# IPsec uses a hybrid encryption approach:
* Asymmetric encryption (e.g., RSA, DH) secures the symmetric key exchange.
* Symmetric encryption (e.g., AES, 3DES) is then used to encrypt actual data.
# Why This is Secure?
* Asymmetric encryption ensures key confidentiality between peers.
* Symmetric encryption ensures high-performance encryption for bulk data.
# Reference: Huawei HCIE Datacom - IPsec Encryption Mechanisms
NEW QUESTION # 170
To obtain the token ID of iMaster NCE, you need to send an HTTP request using the following Python code to invoke an iMaster NCE RESTful API:
Which of the following statements is incorrect?
Answer: B
Explanation:
Comprehensive and Detailed
✔ Breakdown of the Python Code:
✅ (A) Correct → The function r.json() can be used to display the server response (token details).
✅ (B) Correct → The token request URL is correct.
✅ (D) Correct → The request body is in JSON format (json={"userName": nbi_name, "password": nbi_pwd"}).
❌ (C) Incorrect → The request uses POST, not GET (requests.post() is explicitly called).
📖 Reference: Huawei HCIE Datacom - iMaster NCE RESTful API Authentication
NEW QUESTION # 171
As shown in the figure, when PE1 receives an ARP request packet, it forwards the packet to PE4. The packet then carries two labels. The label value 201 is carried by the EVPN Type ____ route. (Enter only digits.)
Answer:
Explanation:
3
Explanation:
Understanding EVPN (Ethernet VPN) Label Allocation and ARP Handling
#What Happens in This Scenario?
1##CE1 (192.168.1.1) sends an ARP request to discover the MAC address of CE2 (192.168.1.2).
2##PE1 receives the ARP request and needs to forward it over the EVPN fabric.
3##To send the broadcast ARP request across the EVPN network, PE1 forwards the packet to PE4 using BUM (Broadcast, Unknown unicast, and Multicast) forwarding.
4##PE4, as the Designated Forwarder (DF), forwards the ARP request to CE2.
Role of Labels in EVPN VXLAN/MPLS Networks
#EVPN uses BGP to distribute MAC/IP reachability information using different route types.
#EVPN Type 2 Route (MAC/IP Advertisement Route):
Used forMAC-to-IP address mappingannouncements.
Ensuresremote VTEPs (PE routers) learn MAC-to-IP bindingsdynamically.
#EVPN Type 3 Route (Inclusive Multicast Route):
Used forBUM traffic (Broadcast, Unknown Unicast, Multicast).
Assigns a multicast label (e.g., 201) to be used for forwarding broadcast packets like ARP requests.
#In this case:
Thelabel 201is used forBUM traffic forwarding.
BUM traffic is handled using an EVPN Type 3 route.
Why is the Answer 3?
#EVPN Type 3 routes carry labels for BUM traffic, which includes ARP requests.
#Label 201 is used for multicast distribution, which is managed by Type 3 routes.
Real-World Application:
VXLAN Data Centers:UsesEVPN Type 3 routes to control BUM traffic efficiently.
Campus Networks:Preventsunnecessary flooding of ARP requests across VXLAN domains.
#Reference:Huawei HCIE-Datacom Guide - EVPN BGP Route Types and Multicast Labeling
NEW QUESTION # 172
......
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