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HCIP-Datacom-Core Technology V1.0: H12-821_V1.0 Exam
"HCIP-Datacom-Core Technology V1.0", also known as H12-821_V1.0 exam, is a Huawei Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 378 Q&As to your H12-821_V1.0 Exam preparation. In the H12-821_V1.0 exam resources, you will cover every field and category in HCIP-Datacom Certification helping to ready you for your successful Huawei Certification.
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Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| Topic 2: IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| Topic 3: Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| Topic 4: Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Spanning Tree Protocol - Link aggregation and stack technology |
| Topic 5: Network Reliability | 7% | - BFD technology - Device redundancy and link backup - VRRP protocol |
| Topic 6: OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting - OSPF configuration and optimization |
| Topic 7: IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
| Topic 8: Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| Topic 9: Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| Topic 10: Network Security | 8% | - ACL and packet filtering - Attack defense and security policy - AAA authentication |
| Topic 11: BGP Fundamentals | 17% | - BGP configuration and policy application - BGP route attributes and selection - BGP characteristics and working principles |
| Topic 12: Routing and Traffic Control | 10% | - Route import and redistribution - Routing policy and filtering - Policy-based routing |
| Topic 13: Multicast Technologies | 9% | - IGMP protocol - PIM protocol - Multicast basic concepts |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
Compared with OSPF, IS-IS has higher scalability because IS-IS uses the______structure to construct packets. (Enter the acronym in uppercase.)
Reveal Solution Discussion 0Correct Answer:
TLV
See the following figure. All routers on the network run IS-IS and are in area 49.0001. By referring to the LSDB of R1, the Level-2 DIS is. (Enter the device name, for example, R1.)
Reveal Solution Discussion 0Correct Answer:
R3
* Understanding the LSDB and Level-2 DIS Election in IS-IS :
* In IS-IS, the Designated Intermediate System (DIS) is elected for both Level-1 and Level-2 on broadcast networks to manage the link-state database (LSDB) and reduce the number of LSAs exchanged.
* The election of the DIS is based on the highest priority . If the priority is the same, the router with the highest System ID becomes the DIS.
* HCIP-Datacom-Core Technology Training Material (IS-IS DIS Election) .
Analyzing the LSDB :
From the LSDB of R1 , the Level-2 link-state database includes the following entries:
LSPID 0100.0000.3003.00-00 : This is R3, and it is present in the Level-2 LSDB with the sequence number and checksum details.
Other routers (R1, R2, R4) are present but do not have the characteristics of the Level-2 DIS in this topology.
Based on the System IDs, R3 (0100.0000.3003) has the highest System ID, making it the Level-2 DIS .
Conclusion :
The Level-2 DIS on the network is R3 , based on the election rules and the LSDB information shown in the figure.
Which command is used to configure the VRRP preemption delay?
- A. vrrp vrid 1 preempt-timer 20
- B. vrrp vrid 1 timer delay 20
- C. vrrp vrid 1 preempt-mode timer delay 20
- D. vrrp vrid 1 preempt-delay 20
Correct Answer: D 🗳️
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Which of the following statements regarding the OSPF protocol is false?
- A. Router-LSA describes four connection types: P2P, TransNet, SubNet, and virtual link.
- B. Routing information can be advertised only between backbone and non-backbone areas and cannot be advertised directly between non-backbone areas.
- C. Each OSPF router uses only one Router-LSA to describe the local active connection status of an area.
- D. Link State ID in a Type 3 LSA indicates the router ID of an ABR.
Correct Answer: D 🗳️
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Which of the following statements about BFD operating modes are true?
- A. In demand mode, once a BFD session is set up, the system no longer periodically sends BFD Control packets.
- B. Asynchronous mode is the primary BFD operating mode.
- C. Asynchronous mode does not support the Echo function.
- D. In asynchronous mode, two systems periodically exchange BFD Control packets at the negotiated interval. If one system does not receive any BFD Control packets from the other within the detection time, the BFD session is declared down.
Correct Answer: A,B,D 🗳️
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