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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) exam is a comprehensive certification program that is recognized globally. HCIE-Datacom V1.0 certification demonstrates that a candidate has the knowledge, skills, and expertise required to design, implement, maintain, and troubleshoot complex data communication networks. HCIE-Datacom V1.0 certification program is ideal for network engineers, network administrators, and IT professionals who want to enhance their career prospects and advance their skills in the field of data communication.

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Huawei HCIE-Datacom V1.0 Sample Questions (Q153-Q158):

NEW QUESTION # 153
Which of the following statements is incorrect about intranet security design for a large or medium-sized virtualized campus network?

A. Intranet security refers to both wired and wireless network security.
B. In addition to terminal access security, interface security must be considered during wireless network security design.
C. To secure data transmission, the CAPWAP tunnel between the AC and AP supports DTLS encryption.
D. Traffic suppression can be configured on the wired network to block broadcast traffic by shutting down interfaces.

Answer: D

Explanation:
Option A: Correct - both terminal and interface security are important.
Option C: Correct -CAPWAP supports DTLSencryption for secure tunnel communication.
Option D: Correct - intranet security design considersboth wired and wireless.
Option B:Incorrect- traffic suppression (such as broadcast suppression) is implemented usingrate limiting or storm control,not by shutting down interfaces. Shutting down interfaces would disrupt legitimate traffic too.
Correct answer: B

NEW QUESTION # 154
Router RL runs the OSPF protocol and uses the display ip routing-tabe command to view the router RL's routing table , the following information about OSPF in the routing table is described correctly as ?

A. In the routing table, used The 'OSPF' identifier identifies a route table entry that can only pass a Type 1 LSA
B. In the routing table, the routing table entries identified with the 'OSPF identifier' can be learned through the 1/2/3/5 LSA to
C. In the routing table, Route table entries identified with the "O_ASE identifier can only be learned through routing introduction
D. In the routing table, the routing table entries identified by the OSPF identifier can only be learned through the 3 types of LSAs to

Answer: C

NEW QUESTION # 155
The address resolution feature for NDP in the following description is incorrect?

A. are used in the address resolution process, neighbor request and neighbor advertisement Address resolution implements the ability to resolve from IPv6 addresses to link-layer addresses
B. When sending a neighbor request packet, the source address-is set as the link-local address
C. When sending a neighbor request packet, the destination address must be the multicast address of the neighbor's requested node
D. of the local interface Two types of ICMPv6 messages,

Answer: B

NEW QUESTION # 156
As shown in the following figure, R1 and R2 establish a neighbor relationship with LeveL2, and the key configuration is as follows, so is the following route entry for R2 correct?

A. 2021::/64 Routers appear in the IP routing table
B. 0::/64 The router will appear in the IP routing table
C. 2022::/64 Routers appear in the IP routing table
D. 2019::/64 Routers appear in the IP routing table

Answer: B,C,D

NEW QUESTION # 157
As shown in the figure, PE1 establishes an EVPN peer relationship with each of PE2 and PE3. When the network is initialized, CE1 sends an ARP request packet.

Which of the following statements are correct about how a PE processes the packet?

A. PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.
B. PE3 forwards the packet to CE1.
C. When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
D. PE2 forwards the packet to CE1.

Answer: A,B,C

Explanation:
Understanding EVPN (Ethernet VPN) and ARP Request Handling
#What is EVPN?
EVPN (Ethernet VPN) is aBGP-based control plane for VXLANthat improvesLayer 2 & Layer 3 network scalability.
Eliminatesflood-and-learn behaviorusingBGP MAC/IP advertisement routes.
#Why is an ARP Request Sent?
WhenCE1 (192.168.1.1/24) wants to communicate with CE2 (192.168.1.2/24), it sends anARP requestto discover the MAC address of CE2.
#How Does EVPN Process the ARP Request?
1##PE1 receives the ARP request from CE1.
2##PE1 sends a MAC/IP advertisement route (Type 2 EVPN route) to inform PE2 and PE3 of CE1's MAC address.
3##PE1 forwards the ARP request as BUM (Broadcast, Unknown unicast, and Multicast) traffic to PE2 and PE3.
4##PE3 (Designated Forwarder - DF) forwards the packet to CE2.
5##PE2 (Non-DF) does NOT forward the packet to avoid loops.
Analysis of the Answer Choices:
#A. When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
Correct:
BUM (Broadcast, Unknown Unicast, Multicast) traffic in EVPNis encapsulated with aspecial labelassigned by the receiving PE.
PE1adds the BUM traffic label for PE3before sending the ARP request.
#B. PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.
Correct:
EVPN Type 2 MAC/IP advertisement routesare sent to inform other PEs of CE1's MAC/IP binding.
#C. PE2 forwards the packet to CE1.
Incorrect:
PE2 is the Non-Designated Forwarder (Non-DF)anddoes NOT forward BUM trafficto avoid loops.
#D. PE3 forwards the packet to CE1.
Correct:
PE3 is the Designated Forwarder (DF) for this segment, meaning itforwards the ARP request to CE2.
#Reference:Huawei HCIE-Datacom Guide - EVPN BGP MAC/IP Advertisement and BUM Traffic Handling Real-World Application:
Data Center Interconnect (DCI):EVPN prevents excessiveARP floodingacross VXLAN networks.
Enterprise Campus Networks:UsesEVPN VXLAN to scale Layer 2 connectivity across multiple locations.

NEW QUESTION # 158
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