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| Section | Weight | Objectives |
|---|---|---|
| Campus Network Planning and Deployment | 23% | - Campus Network Service Deployment
|
| Advanced Routing and Switching Technologies | 37% | - Advanced Routing Protocols
|
| Network Automation Technologies and Practice | 17% | - Automation Foundation
|
| WAN Interconnection Network Planning and Deployment | 8% | - WAN Service Optimization
|
| Bearer WAN Planning and Deployment | 15% | - Bearer Network Architecture
|
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NEW QUESTION # 32
AH is an IP-based transport-layer protocol. The protocol number is _____. (Enter only digits.)
Answer:
Explanation:
51AH (Authentication Header)is part of theIPsec protocol suite, used to provideintegrity and authenticationfor IP packets.It is defined byRFC 4302and uses itsown protocol numberwithin the IP header.The protocol number for AH is officially assigned byIANA (Internet Assigned Numbers Authority).According to the IANA registry:Protocol Number for AH = 51This protocol number is used in the IP header's"Protocol"field to indicate the next protocol isAH.Correct answer: 51 Reference:
IANA IP Protocol Numbers: https://www.iana.org/assignments/protocol-numbers Huawei HCIE-Datacom V1.0 Study GuideChapter:IPsec FundamentalsSection:AH and ESP Protocol Details
NEW QUESTION # 33
In order to configure M4, you first need to define a RADIUS server, which is defined as follows:
Huawei]radius-server template EXAM
[Huawei-radius-EXAM]radius-servershared-key cipher HUAwei123(Huawei-radius-EXAM]radus-server authentication 10766661812(Huawei-radius- EXAM]radius-server authorization 1076666
1812[Huawei-radius-EXAM]radius-server accounting 10766661813 (Huawei-radius EXAM]radius-server retransmit 2
Answer: A
NEW QUESTION # 34
As shown in the figure, R1, R2, R3, and R4 reside in the same MPLS domain, and LDP (Label Distribution Protocol) is used to distribute MPLS labels.
R4 is the egress LSR (Label Switching Router) for the FEC (Forwarding Equivalence Class) 4.4.4.0/24.
To make R4 aware of QoS forwarding priority of a packet sent from R1 and destined for 4.4.4.0/24, Without looking up R4's label forwarding information base, The outgoing label of the FEC on R3 should be _____ (Enter an Arabic numeral without symbols).
Answer:
Explanation:
0
Explanation:
Understanding MPLS LDP and PHP (Penultimate Hop Popping):
#Label Distribution in MPLS LDP:
LDP assignslabels to FECsso that routers can forward packets based on labels rather than IP lookup.
Labels areadvertised downstream(from R4 to R3, R3 to R2, and so on).
#Penultimate Hop Popping (PHP) Concept:
Theegress LSR (R4)doesnot require an incoming labelfor 4.4.4.0/24.
Instead,R3 (Penultimate LSR) removes the labelbefore forwarding the packet to R4.
R3 forwards the packet as an IP packet, not an MPLS packet, toavoid an unnecessary label lookup at R4.
InMPLS LDP, the label " 0 " is used to indicate an implicit NULL label (PHP operation).
Why the Answer is " 0 " (Implicit NULL Label)?
#Since R4 is the egress LSR, it does not need a label for 4.4.4.0/24.
#R3 assigns the outgoing label as " 0 " (Implicit NULL Label)to indicate that the label should be removed before sending to R4.
#R4 receives the packet as a pure IP packet (no MPLS label).
Why Other Answers Are Incorrect?
#Any value other than " 0 "
If R3 assigns a label (e.g., 100), R4 would need to perform anunnecessary MPLS lookup, which is inefficient.
Using " 0 " ensures PHP occurs, optimizing the forwarding process.
Final answer: 0
# Reference:Huawei HCIE Datacom - MPLS LDP and Penultimate Hop Popping (PHP)
NEW QUESTION # 35
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following fields is not carried in BGP EVPN Type 2 routes?
Answer: B
Explanation:
BGP EVPN Route Types in VXLAN:
* BGP EVPN Type 2 Route (MAC/IP Advertisement Route)
* Used for host reachability advertisement.
* Carries MAC and IP address information of endpoints.
* Does not carry an IP Prefix field (Type 5 routes handle prefixes).
* Correct Explanation of Answer Choices:# IP Address (B) is included - Used for host mobility and reachability.# L3VNI (C) is included - Used for Layer 3 VXLAN routing.# L2VNI (D) is included - Used for Layer 2 VXLAN bridging.# IP Prefix (A) is not included in Type 2 routes - It is part of EVPN Type 5 routes for prefix advertisement.
Reference from Huawei HCIE-Datacom Documentation:
* Huawei VXLAN BGP EVPN Configuration Guide - Type 2 vs. Type 5 Routes
* HCIE-Datacom Training Material - VXLAN Overlay Networks and BGP EVPN
NEW QUESTION # 36 
Answer: D
NEW QUESTION # 37
......
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