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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: BGP Fundamentals | 17% | - BGP route attributes and selection - BGP characteristics and working principles - BGP configuration and policy application |
| Topic 2: IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| Topic 3: Network Reliability | 7% | - VRRP protocol - BFD technology - Device redundancy and link backup |
| Topic 4: Network Solutions and Design | 5% | - Enterprise network design principles - Typical network architecture and solution |
| Topic 5: Routing and Traffic Control | 10% | - Policy-based routing - Route import and redistribution - Routing policy and filtering |
| Topic 6: WLAN Basics | 2% | - WLAN technology principles - WLAN deployment and optimization |
| Topic 7: Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| Topic 8: IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| Topic 9: Multicast Technologies | 9% | - IGMP protocol - Multicast basic concepts - PIM protocol |
| Topic 10: OSPF Fundamentals | 16% | - OSPF configuration and optimization - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting |
| Topic 11: Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| Topic 12: Ethernet Switching Technologies | 7% | - Link aggregation and stack technology - VLAN principles and configuration - Spanning Tree Protocol |
| Topic 13: Network Security | 8% | - AAA authentication - Attack defense and security policy - ACL and packet filtering |
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NEW QUESTION # 404
On a broadcast IS-IS network shown in the following figure, a DIS needs to be elected to create and update pseudonodes. Which of the following routers is elected as the DIS?
Answer: A
Explanation:
* Understanding DIS Election in IS-IS:
* On an IS-IS broadcast network, a Designated Intermediate System (DIS) is elected to create and update pseudonodes for efficient communication.
* The election is based on the following criteria:
* DIS Priority: The router with the highest priority is elected as the DIS.
* Router ID (tie-breaker): If priorities are equal, the router with the highest Router ID is elected.
* Analyzing the DIS Priorities and Router IDs:
* R1: Priority = 64, Router ID = 1.1.1.1
* R2: Priority = 1, Router ID = 2.2.2.2
* R3: Priority = 127, Router ID = 3.3.3.3
* R4: Priority = 10, Router ID = 4.4.4.4
* Among the routers, R3 has the highest DIS priority (127), making it the DIS.
* Correct Option:
* Option B (R3): Correct, as R3 has the highest priority.
* Option A (R1): Incorrect, as its priority is lower (64).
* Option C (R4): Incorrect, as its priority is lower (10).
* Option D (R2): Incorrect, as its priority is the lowest (1).
References:
* HCIA-Datacom Study Guide, Chapter: IS-IS DIS Election
* Huawei IS-IS Configuration and DIS Role Details
NEW QUESTION # 405
A company has a stack consisting of three switches that are running properly. The master switch restarts due to a fault. Given this, which of the following statements are true?
Answer: A,B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Switch Stack Overview:
* In a switch stack, roles are assigned as master, standby, and slave.
* The master handles configuration and control, while the standby serves as the backup master.
* Behavior During Master Restart:
* D: If the master switch restarts, the standby switch immediately takes over as the new master.
* B: After the original master switch restarts, it becomes the master again (default behavior).
* Incorrect Options:
* A: The slave switch is not promoted to standby before the master switch restart completes.
* C: The original standby switch remains the master after the restart.
References:
* HCIA-Datacom Study Guide, Chapter: Switch Stack Management
* Huawei Switch Stack Role Transition Rules
NEW QUESTION # 406
Deploy BFD and OSPF association on the direct link. If the physical link is disconnected, please arrange the BFD processing process in order.
Answer:
Explanation:
NEW QUESTION # 407
The Neighbor Discovery Protocol (NDP) is an important basic protocol in the IPv6 protocol suite and plays an important role. Which of the following functions and features does it support?
Answer: A,B,C,D
Explanation:
Neighbor Discovery Protocol (NDP):
* NDP is a key protocol in the IPv6 protocol suite, replacing ARP (Address Resolution Protocol) in IPv4.
* It operates using ICMPv6 (Internet Control Message Protocol for IPv6) and is critical for managing interactions between IPv6 nodes on the same link.
NEW QUESTION # 408
After VRRP election is complete, a device assumes the Master or Backup role. Which of the following events can be processed only by the device of the Master role?
Answer: A,B,C
NEW QUESTION # 409
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