DOWNLOAD the newest RealExamFree H12-891_V1.0 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=11FtA-TvOCpgcWBLfasJ067YXwj9mYB0X
You only need 20-30 hours to learn our H12-891_V1.0 test braindumps and then you can attend the exam and you have a very high possibility to pass the exam. For many people whether they are the in-service staff or the students they are busy in their job, family lives and other things. But you buy our H12-891_V1.0 prep torrent you can mainly spend your time energy and time on your job, the learning or family lives and spare little time every day to learn our HCIE-Datacom V1.0 exam torrent. Our answers and questions are compiled elaborately and easy to be mastered. Because our H12-891_V1.0 Test Braindumps are highly efficient and the passing rate is very high you can pass the exam fluently and easily with little time and energy needed.
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Bearer WAN Planning and Deployment | 15% | - Bearer Network Architecture
|
| Topic 2: Campus Network Planning and Deployment | 23% | - Campus Network Architecture Design
|
| Topic 3: Network Automation Technologies and Practice | 17% | - Huawei Automation Solutions
|
| Topic 4: WAN Interconnection Network Planning and Deployment | 8% | - WAN Interconnection Technologies
|
| Topic 5: Advanced Routing and Switching Technologies | 37% | - Advanced Switching Technologies
|
You can easily download these formats of Huawei H12-891_V1.0 actual dumps and use them to prepare for the Huawei H12-891_V1.0 certification test. You do not need to enroll yourself in expensive H12-891_V1.0 Exam Training classes. With the Huawei H12-891_V1.0 valid dumps, you can easily prepare well for the actual HCIE-Datacom V1.0 exam at home.
NEW QUESTION # 79
MQC, like PBR-can only be called under the device's Layer 3 interface.
Answer: A
NEW QUESTION # 80
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 # 81
VLAN-based MAC address flapping detection is configured. If MAC address flapping occurs, actions to be taken on an interface can be configured as required. Which of the following actions cannot be configured?
Answer: D
Explanation:
When VLAN-based MAC address flapping detection is configured, the following actions can be taken:
Alarm sending (generates logs or SNMP traps)
MAC address blocking (blocks specific flapping MAC addresses)
Interface blocking (shuts down or disables the interface temporarily)
Traffic filtering, however, is not an action option directly supported as a response to MAC flapping. Traffic filtering is part of ACL or QoS, not a built-in flapping response.
Exact Extract - Huawei Switching Configuration Guide - MAC Address Management:
"Actions that can be configured upon detection of MAC address flapping include sending alarms, blocking MAC addresses, and blocking interfaces. Traffic filtering is not supported as a direct action." Reference:
HCIE-Datacom Study Guide - Switching and MAC Security
Huawei S Series Switch Configuration Guide - MAC Flapping Handling
NEW QUESTION # 82
Network Quality Analysis (NQA) is a real-time network performance detection and measurement technology.
It monitors the performance of multiple protocols running on a network. Which of the following protocols can be monitored by NQA?
Answer: B
Explanation:
Huawei'sNQA (Network Quality Analysis)provides tools to test and monitor network performance such as latency, jitter, and packet loss. The supported test types include:
ICMP- For reachability and round-trip time testing.
UDP,TCP,HTTP,FTP, etc.
DNS,VoIP,DHCP(limited to simulation, not monitoring protocol status itself) Protocols likeSNMPandOSPFarenot directly monitored by NQA, as these aremanagement or control plane protocols, not data-path or performance-measurable protocols.
Correct answer: C. ICMP
NEW QUESTION # 83
Fill in Blank
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 assigns labels to FECs so that routers can forward packets based on labels rather than IP lookup.
Labels are advertised downstream (from R4 to R3, R3 to R2, and so on).
✔ Penultimate Hop Popping (PHP) Concept:
The egress LSR (R4) does not require an incoming label for 4.4.4.0/24.
Instead, R3 (Penultimate LSR) removes the label before forwarding the packet to R4.
R3 forwards the packet as an IP packet, not an MPLS packet, to avoid an unnecessary label lookup at R4.
In MPLS 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 an unnecessary MPLS lookup, which is inefficient.
Using "0" ensures PHP occurs, optimizing the forwarding process.
📖 Reference: Huawei HCIE Datacom - MPLS LDP and Penultimate Hop Popping (PHP)
NEW QUESTION # 84
......
Perhaps you worry about the quality of our H12-891_V1.0 exam questions. We can make solemn commitment that our H12-891_V1.0 study materials have no mistakes. All contents are passing rigid inspection. You will never find small mistakes such as spelling mistakes and typographical errors in our H12-891_V1.0 learning guide. No one is willing to buy a defective product. And our H12-891_V1.0 practice braindumps are easy to understand for all the candidates.
H12-891_V1.0 Real Questions: https://www.realexamfree.com/H12-891_V1.0-real-exam-dumps.html
P.S. Free 2026 Huawei H12-891_V1.0 dumps are available on Google Drive shared by RealExamFree: https://drive.google.com/open?id=11FtA-TvOCpgcWBLfasJ067YXwj9mYB0X