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Last Updated: Sep 26, 2026
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Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Ethernet Switching Technology | - Switching Fundamentals
|
| Topic 2: Routing Basics | - IP Routing Fundamentals
|
| Topic 3: WLAN | - Wireless Networking
|
| Topic 4: Network Solutions | - Enterprise Network Solutions
|
| Topic 5: IPv6 | - IPv6 Fundamentals
|
| Topic 6: OSPF | - OSPF Fundamentals
|
| Topic 7: Network Service and Management | - O&M Technologies
|
| Topic 8: Routing and Traffic Control | - Traffic Management
|
| Topic 9: IS-IS | - IS-IS Fundamentals
|
| Topic 10: Network Reliability | - Reliability Technologies
|
| Topic 11: Multicast | - IP Multicast Technologies
|
| Topic 12: BGP | - BGP Technologies
|
| Topic 13: Network Security | - Security Technologies
|
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
Based on IGMP snooping, IGMP snooping proxy enables a switch to act as a substitute for an upstream Layer
3 device to send IGMP Query messages to downstream hosts, and also to act as a substitute for downstream hosts to send IGMP Report/Leave messages to an upstream device. As such, this function conserves bandwidth between the upstream device and the local device.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
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STP ensures a loop-free network but has a slow network topology convergence speed, affecting communication quality. RSTP has made some improvements based on STP. Which of the following improvements is not included?
- A. RSTP deletes three port states and adds two port roles.
- B. The non-root switch running RSTP sends configuration BPDUs at the interval specified by the Hello timer, which is performed independently by each device.
- C. RSTP reduces five port states to three port states based on user traffic forwarding and MAC address learning.
- D. If a port does not receive configuration BPDUs from the upstream device within four Hello intervals, the switch considers that the negotiation with the neighbor fails.
Correct Answer: D 🗳️
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In BGP, the Origin attribute is used to identify the origin of a route. Which of the following statements are true about the Origin attribute?
- A. If a route is learned through EGP, the Origin attribute of this BGP route is displayed as ? in the BGP routing table.
- B. If multiple routes carry the same destination address but different Origin attributes and all other route selection conditions are the same, BGP selects the optimal route according to the Origin attribute in the following order: IGP > EGP > Incomplete.
- C. If a route is imported to BGP by the originator using the network command, the Origin attribute of the BGP route is displayed as i in the BGP routing table.
- D. This attribute is a well-known mandatory attribute.
Correct Answer: B,C,D 🗳️
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In addition to numerous normal service packets, the CPUs of devices on a network may also receive large numbers of attack packets. To ensure that the CPUs can properly respond to normal services, the devices provide the local attack defense function.
Which of the following statements are true about this function? (Select all that apply)
- A. Regardless of the packet type, the same rate limit must be set to reduce the number of packets sent to the CPU.
- B. To ensure that session-based application-layer data runs properly during an attack, you can configure the dynamic link protection function.
- C. The device can schedule the protocol packets to be sent to the CPU in the attack defense policy based on the protocol priorities so that the packets with higher priorities are processed preferentially.
- D. CPU attack defense can also take effect on the management interface of the device.
Correct Answer: B,C,D 🗳️
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BGP is a distance-vector protocol that implements route reachability between ASs and selects optimal routes.
Which of the following statements are true about this protocol?
- A. BGP uses TCP as the transport layer protocol.
- B. BGP supports automatic peer discovery.
- C. BGP does not support authentication. Therefore, it cannot ensure network security.
- D. BGP provides various routing policies.
Correct Answer: A,D 🗳️
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