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| Section | Weight | Objectives |
|---|---|---|
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| BGP Fundamentals | 17% | - BGP route attributes and selection - BGP configuration and policy application - BGP characteristics and working principles |
| Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| Network Reliability | 7% | - Device redundancy and link backup - VRRP protocol - BFD technology |
| OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF configuration and optimization - OSPF special applications and troubleshooting |
| Network Security | 8% | - AAA authentication - ACL and packet filtering - Attack defense and security policy |
| Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Link aggregation and stack technology - Spanning Tree Protocol |
| Multicast Technologies | 9% | - PIM protocol - IGMP protocol - Multicast basic concepts |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| Routing and Traffic Control | 10% | - Routing policy and filtering - Policy-based routing - Route import and redistribution |
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NEW QUESTION # 239
OSPF routers exchange Hello packets to establish neighbor relationships. The Hello packet sending modes vary by network type. On which of the following types of networks are Hello packets multicast?
Answer: C,D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
* OSPF uses Hello packets to establish and maintain neighbor relationships. The method of sending Hello packets depends on the network type:
* Broadcast networks (e.g., Ethernet) use multicast (224.0.0.5) to discover and maintain OSPF neighbors.
* Point-to-Point (P2P) networks (e.g., PPP links) also use multicast (224.0.0.5) for Hello packet exchange.
* Non-Broadcast Multi-Access (NBMA) networks (e.g., Frame Relay) require manual neighbor configuration and use unicast Hello packets instead of multicast.
* Point-to-Multipoint (P2MP) networks can send Hello packets either unicast or multicast, but it depends on configuration.
# Reference: Huawei HCIA-Datacom Study Guide, OSPF Neighbor Discovery and Hello Packet Mechanism.
NEW QUESTION # 240
On an IS-IS network, the area address and router ID of a router are 49.0001 and 10.10.1.1, respectively. For easier management, you are advised to configure a system ID based on the router ID. In this case, the corresponding NET is______. (Enter digits only and separate them with periods).
Answer:
Explanation:
49.0001.0100.1000.1001.00
NEW QUESTION # 241
Which of the following routing protocols support publishing default routes through command configuration? (Multiple choice)
Answer: B,C,D
NEW QUESTION # 242
Which of the following statements about routing tools is incorrect? (Multiple choice)
Answer: A,D
NEW QUESTION # 243
On an OSPF network, one router with P2P as the network type is directly connected to another router with P2MP as the network type. If the Hello intervals on the two routers are changed to be the same, neighbor relationship establishment and LSDB synchronization are not affected.
Answer: A
NEW QUESTION # 244
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