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| Section | Weight | Objectives |
|---|---|---|
| Network Security | 8% | - Attack defense and security policy - AAA authentication - ACL and packet filtering |
| BGP Fundamentals | 17% | - BGP configuration and policy application - BGP route attributes and selection - BGP characteristics and working principles |
| Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| Multicast Technologies | 9% | - Multicast basic concepts - IGMP protocol - PIM protocol |
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| Routing and Traffic Control | 10% | - Route import and redistribution - Policy-based routing - Routing policy and filtering |
| Ethernet Switching Technologies | 7% | - Link aggregation and stack technology - Spanning Tree Protocol - VLAN principles and configuration |
| Network Reliability | 7% | - VRRP protocol - Device redundancy and link backup - BFD technology |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting - OSPF configuration and optimization |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
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NEW QUESTION # 380
On an OSPF network, LSDBs are used to store LSAs. Common LSAs include router LSAs and network LSAs. Which of the following items is not included in the 3-tuple that is used to uniquely identify an LSA?
Answer: C
Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:
In OSPF,Link State Advertisements (LSAs)are used to exchange routing and topology information. Each LSA in the OSPF network is uniquely identified using a3-tuple identifier, which consists of:
Link State ID:
The Link State ID uniquely identifies the LSA within the OSPF area. Its value depends on the LSA type. For example, for a Router LSA, the Link State ID is the originating router's Router ID.
Advertising Router:
This is the Router ID of the router that generated the LSA. It identifies which router is responsible for creating and advertising this LSA.
LSType:
This field identifies the type of LSA (e.g., Router LSA, Network LSA, Summary LSA, AS-External LSA, etc.). It is crucial for interpreting the purpose and content of the LSA.
TheLS Sequence Numberis not part of the 3-tuple that uniquely identifies the LSA. Instead, it is used to determine the most recent version of the LSA in case there are multiple instances of the same LSA.
References:
Huawei HCIA-Datacom Study Guide, Chapter on "OSPF LSAs and LSDBs".
RFC 2328 - OSPF Version 2 (Section 12.1.6).
NEW QUESTION # 381
Huawei modular devices have multiple hardware modules that provide different functions. Match the following hardware modules with their functions.
Answer:
Explanation:
Explanation:
The hardware modules of Huawei modular devices and their functions are:
* Main Processing Unit (MPU): Provides control and management planes for the entire system, responsible for protocol processing, system security, and software upgrades.
* Switch Fabric Unit (SFU): Provides the data plane, enabling high-speed data switching between service modules.
* Line Processing Unit (LPU): Manages data forwarding, offering various interfaces (optical and electrical) for data access.
NEW QUESTION # 382
The linkage between BFD and OSPF uses BFD's rapid sensing of link failures to speed up the OSPF protocol's response to network topology changes, which can increase the OSPF convergence speed from seconds to milliseconds.
Answer: B
NEW QUESTION # 383
This configuration is part of RTA configuration.
[RTA] ospf 100
[RTA-ospf-100] silent-interface GigabitEthernet 1/0/0
Which of the following statements regarding the configuration are true?
Answer: A,B,D
Explanation:
The silent-interface command disables the sending of OSPF packets, including Hello packets, on the specified interface, which prevents the establishment of OSPF neighbor relationships. However, the interface can still advertise directly connected routes through other interfaces, making Option C incorrect.
NEW QUESTION # 384
On the VRP platform, when we introduce IS-IS routing into the OSPF protocol, if COST is not specified, the cost value will be set to 20 by default.
Answer: B
NEW QUESTION # 385
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