Exam Name: HCIP-Datacom-Core Technology V1.0
Certification Provider: Huawei
Corresponding Certification: HCIP-Datacom
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Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Security | 8% | - ACL and packet filtering - Attack defense and security policy - AAA authentication |
| Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Link aggregation and stack technology - Spanning Tree Protocol |
| Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| WLAN Basics | 2% | - WLAN technology principles - WLAN deployment and optimization |
| BGP Fundamentals | 17% | - BGP route attributes and selection - BGP configuration and policy application - BGP characteristics and working principles |
| OSPF Fundamentals | 16% | - OSPF configuration and optimization - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting |
| Network Reliability | 7% | - VRRP protocol - BFD technology - Device redundancy and link backup |
| Network Solutions and Design | 5% | - Enterprise network design principles - Typical network architecture and solution |
| Multicast Technologies | 9% | - IGMP protocol - Multicast basic concepts - PIM protocol |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| Routing and Traffic Control | 10% | - Routing policy and filtering - Route import and redistribution - Policy-based routing |
| IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
An OSPF AS-external LSA describes a route to an AS external network. When the field in the LSA is 0.0.0.0, the traffic destined for the external network is sent to the ASBR that imports this external route. (Enter the acronym in uppercase.)
Reveal Solution Discussion 0Correct Answer:
NSSA
Explanation:
An OSPF AS-external LSA is used to describe routes to networks that are external to the OSPF Autonomous System (AS). This external route information is typically imported into OSPF by an Autonomous System Boundary Router (ASBR) .
If the Forwarding Address field in the AS-external LSA is set to 0.0.0.0, this indicates that traffic destined for the external network should be forwarded directly to the ASBR that advertised the external route.
The specific context mentioned here relates to the Not-So-Stubby Area (NSSA) , a type of OSPF area designed to handle AS-external routes in a more controlled way. In NSSAs:
* Type 7 LSAs are used to describe AS-external routes.
* The ASBR within the NSSA converts the Type 7 LSA to a Type 5 LSA before advertising it to the backbone area.
Hence, the correct acronym for the described functionality is NSSA .
References:
Huawei HCIA-Datacom Study Guide, Chapter on " OSPF Area Types " .
RFC 3101 - OSPF Not-So-Stubby Area (NSSA) Option.
On an enterprise WLAN where Portal authentication is deployed, an AC functions as an access device and communicates with a Portal server using the Portal protocol. Which of the following statements are true about the Portal protocol?
- A. The HTTP or HTTPS protocol can be used as the Portal access or authentication protocol.
- B. Portal protocol packets are transmitted over TCP.
- C. By default, the device uses the destination port number 50100 to proactively send packets to the Portal server.
- D. By default, the access device processes Portal protocol packets through port 2000.
Correct Answer: A,B 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
During the initial formation of a spanning tree in STP, all STP switches consider themselves as the root bridge. Therefore, by default, they generate and send configuration BPDUs periodically (every______seconds). (Enter only digits.)
Reveal Solution Discussion 0Correct Answer:
2
A BGP device receives a route carrying an unknown attribute from a peer but does not know whether other devices need the attribute. In this case, the BGP device retains this attribute when advertising the route to other peers. Which of the following attributes is of this type?
- A. Community
- B. OriginatorID
- C. AS.Path
- D. MED
Correct Answer: A 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Compared with RSTP, which of the following port roles are added to MSTP?
- A. Backup port
- B. Edge port
- C. Master port
- D. Regional edge port
Correct Answer: C,D 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
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