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| Section | Weight | Objectives |
|---|---|---|
| IPv6 Technologies | 3% | - IPv6 address structure and configuration - IPv6 routing protocols |
| Network Security | 8% | - ACL and packet filtering - Attack defense and security policy - AAA authentication |
| Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| Ethernet Switching Technologies | 7% | - Link aggregation and stack technology - VLAN principles and configuration - Spanning Tree Protocol |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| BGP Fundamentals | 17% | - BGP characteristics and working principles - BGP configuration and policy application - BGP route attributes and selection |
| Multicast Technologies | 9% | - PIM protocol - IGMP protocol - Multicast basic concepts |
| Routing and Traffic Control | 10% | - Policy-based routing - Routing policy and filtering - Route import and redistribution |
| Network Reliability | 7% | - VRRP protocol - BFD technology - Device redundancy and link backup |
| WLAN Basics | 2% | - WLAN technology principles - WLAN deployment and optimization |
| Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting - OSPF configuration and optimization |
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NEW QUESTION # 331
An ACL can be used to match routes or data, but cannot be used to match both the IP address prefix length and mask length.
Answer: B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* ACL Capabilities:
* ACLs are versatile tools that can match:
* Data packets: Using IP addresses, protocols, ports, etc.
* Routes: ACLs can be used in route filtering, matching both IP prefix length and mask length.
* Correct Statement:
* ACLs can match both the IP address prefix length and mask length in route filtering applications.
References:
* HCIA-Datacom Study Guide, Chapter: ACL Applications
* Huawei Route Filtering Using ACLs
NEW QUESTION # 332
In BGP routing rules, which of the following options is used to determine the priority of the Origin attribute?
Answer: B
NEW QUESTION # 333
BGP is generally applied to complex networks where routes change frequently. Frequent route flapping consumes a large number of bandwidth and CPU resources, and even affects the normal operation of the network. This is an unavoidable problem that cannot be solved in BGP.
Answer: B
Explanation:
BGP Route Flapping and Mitigation
While route flapping is a concern in large-scale networks, BGP employs mechanisms such as Route Dampening to mitigate its impact. Route dampening suppresses frequently flapping routes for a period of time to reduce resource consumption and network instability. Therefore, it is incorrect to state that the issue cannot be resolved in BGP.
NEW QUESTION # 334
All routers in a network run IS-IS and are all in Area 49.0001. The LSDB of R1 is as shown in the figure. Based on this, the Level of the four routers can be determined.
Answer:
Explanation:
NEW QUESTION # 335
As a next-generation wireless technology, Wi-Fi 6 greatly improves bandwidth rate and performance. Which of the following statements isfalseabout the features of Wi-Fi 6?
Answer: C
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Features of Wi-Fi 6:
Wi-Fi 6 (802.11ax) introduces several new technologies to improve network efficiency, reduce latency, and optimize power usage:
OFDMA (Orthogonal Frequency Division Multiple Access):Allows multiple devices to transmit simultaneously, improving concurrency.
TWT (Target Wake Time):Reduces power consumption by scheduling communication times for devices.
High Bandwidth:Supports up to 9.6 Gbps, significantly faster than Wi-Fi 5.
2. Why Zero Latency is Incorrect:
While Wi-Fi 6 reduces latency compared to earlier standards,zero latencyis not achievable due to inherent delays in network communication.
The statement "Realizes zero latency" is misleading and technically inaccurate.
3. Analysis of Each Option:
Option A: Uses OFDMA technology to achieve high concurrency.
Correct (True Statement).
OFDMA is a core feature of Wi-Fi 6 that improves concurrent communication.
Option B: Realizes zero latency, ensuring efficient service running.
Incorrect (False Statement).
Wi-Fi 6 reduces latency but cannot eliminate it entirely.
Option C: Provides high bandwidth, up to 9.6 Gbps.
Correct (True Statement).
Wi-Fi 6 supports a theoretical maximum bandwidth of 9.6 Gbps.
Option D: Uses TWT technology to reduce terminal power consumption.
Correct (True Statement).
TWT schedules communication times, allowing devices to enter low-power states and conserve battery life.
4. Summary:
Thefalsestatement isB, as Wi-Fi 6 does not achieve zero latency.
Reference:
Huawei HCIA-Datacom Study Guide, Chapter "Wi-Fi 6 Technology."
IEEE 802.11ax Standard Documentation.
NEW QUESTION # 336
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