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| Section | Objectives |
|---|---|
| Topic 1: WAN and VPN Technologies | - MPLS fundamentals
|
| Topic 2: Network Automation and Programmability | - SDN and automation
|
| Topic 3: Network Security and QoS | - QoS mechanisms
|
| Topic 4: IPv6 and Advanced IP Technologies | - IPv6 deployment
|
| Topic 5: Data Center and Virtualization Technologies | - VXLAN and overlay networks
|
| Topic 6: Routing and Switching Technologies | - IP routing protocols
|
| Topic 7: Enterprise Network Architecture | - Network design principles
|
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NEW QUESTION # 28
As shown in the following figure, R1, R2, R3 establish a neighbor relationship of Level2 The IP routing table for R3 is correct (multiple choice).
Answer: A,B,C,D
NEW QUESTION # 29
Which of the following factors does not need to be considered during the selection of core devices for the enterprise bearer WAN?
Answer: A
Explanation:
When selectingcore devicesfor aWANin enterprise networks, considerations typically include:
Service volume: Ensures the core device can handle expected traffic.
Physical location: Important for latency, redundancy, and network design.
Node quantity: Affects topology, scalability, and routing complexity.
Device naming conventions, however, are purely administrative anddo not affectthe functional selection of core devices.
Correct answer: A. Device naming conventions
NEW QUESTION # 30
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following command needs to be run on the VBDIF interface to enable the VTEP peer to generate BGP EVPN Type 2 routes based on ARP information of the local terminal?
Answer: B
Explanation:
BGP EVPN Type 2 Route (MAC/IP Advertisement Route)
This route carriesMAC and IP address bindingsto inform remote VTEPs about locally learned endpoints.
Why Use arp collect host enable?
Collects ARP entriesof locally connected hosts.
EnablesBGP EVPN Type 2 route generationto distribute the learned ARP information.
Incorrect Answer Explanations:#A. mac-address xxxx-xxxx-xxxx- Manually configures a MAC address butdoes not enable ARP collection for EVPN Type 2 routes.#B. arp-proxy enable- Enables ARP Proxy butdoes not advertise ARP information using BGP EVPN.#D. arp distribute-gateway enable- Used inDistributed Anycast Gateway (DAG) modebutnot for collecting host ARP data.
Reference from Huawei HCIE-Datacom Documentation:
Huawei VXLAN EVPN Configuration Guide - ARP Handling and EVPN Type 2 Routes HCIE-Datacom Training Material - VTEP ARP Advertisement in VXLAN Networks
NEW QUESTION # 31
Which of the following statements about SR-MPLS Policy candidate paths are correct?
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed Explanation:
# SR-MPLS Policy candidate paths are used for flexible path selection and load balancing in Segment Routing (SR-MPLS) networks.
# Correct Statements:# (A) Each candidate path can have multiple segment lists, each with its own weight for load balancing.# (B) Load balancing is supported both between candidate paths and within segment lists.# (C) An SR-MPLS Policy can contain multiple candidate paths, each with a preference value.# (D) The candidate path with the highest preference is selected as the primary path.
# Reference: Huawei HCIE Datacom - SR-MPLS Policy Path Selection
NEW QUESTION # 32
Which of the following statements does not cause the flapping of a VRRP group?
Answer: A
Explanation:
VRRP (Virtual Router Redundancy Protocol) and Flapping
VRRP ensures gateway redundancy by allowing multiple routers to work together as a virtual router. Flapping occurs when the master and backup routers frequently switch roles.
Causes of VRRP Flapping:
โ
A. Too small interval between Advertisement packet transmissions - Can cause flapping If the Advertisement interval is too short, frequent VRRP state changes can occur.
โ
C. Packet loss on an interface of the backup device - Can cause flapping If the backup router loses VRRP packets, it might assume the master is down and initiate an election.
โ
D. Flapping on the link transmitting VRRP Advertisement packets - Can cause flapping If the link used for VRRP experiences instability, packets may be lost, triggering VRRP role changes.
Incorrect Answer
โ B. Inconsistent preemption delay settings - Does NOT cause VRRP flapping Preemption delay only affects when a router takes over as master after recovering from a failure.
It does not directly cause flapping because the role change happens only after a delay, preventing frequent transitions.
Reference from Huawei HCIE-Datacom Documentation:
Huawei VRRP Configuration Guide - Preventing VRRP Flapping
HCIE-Datacom Study Material - VRRP Timers and Stability
NEW QUESTION # 33
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