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| Section | Weight | Objectives |
|---|---|---|
| Ethernet Switching Technologies | 7% | - Spanning Tree Protocol - VLAN principles and configuration - Link aggregation and stack technology |
| Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| 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 |
| IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| OSPF Fundamentals | 16% | - OSPF special applications and troubleshooting - OSPF configuration and optimization - OSPF principles and operation mechanisms |
| Routing and Traffic Control | 10% | - Route import and redistribution - Routing policy and filtering - Policy-based routing |
| Network Security | 8% | - ACL and packet filtering - Attack defense and security policy - AAA authentication |
| Multicast Technologies | 9% | - IGMP protocol - Multicast basic concepts - PIM protocol |
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| BGP Fundamentals | 17% | - BGP configuration and policy application - BGP route attributes and selection - BGP characteristics and working principles |
| Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
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NEW QUESTION # 106
Which of the following descriptions of the Preferred-Value attribute in BGP are correct? (Multiple choice)
Answer: A,D
NEW QUESTION # 107
Which of the following are the necessary configurations of the firewall? (Multiple choice)
Answer: A,D
NEW QUESTION # 108
On the OSPF network shown in the figure, R1, R2, and R3 run OSPF, and R1 advertises four VPN routes to OSPF. A filter-policy needs to achieve the following goal: R1's and R3's routing tables contain the routes to 192.168.3.0/24, but R2's routing table does not.
Which of the following filter-policies cannot meet this requirement?
Answer: B
NEW QUESTION # 109
An enterprise uses Huawei routers to deploy an IS-IS network for network-wide communication. An engineer wants to change the interface cost to control route selection. By default, which of the following values is the maximum cost that can be configured?
Answer: B
Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:In IS-IS, the interface cost is a metric used to determine the best path to a destination. Lower-cost paths are preferred over higher-cost paths. By default, IS-IS interface costs can range from 1 to 63.
* Default Cost Range:
* IS-IS allows the configuration of interface costs within the range of 1-63 by default. This range is sufficient for most networks.
* Maximum Configurable Cost:
* The maximum value that can be configured by default is 63. If there is a requirement for a higher cost range, the metric-style can be changed to wide, which allows the cost range to extend beyond 63.
* Option A (67): Incorrect. 67 is not the maximum default value.
* Option B (63): Correct. This is the maximum default cost value.
* Option C (64): Incorrect. This is beyond the default range.
* Option D (68): Incorrect. This is beyond the default range.
References:
* Huawei HCIA-Datacom Study Guide, Chapter on "IS-IS Cost and Route Selection".
* RFC 5308 - Routing IPv6 with IS-IS.
NEW QUESTION # 110
When multiple ASBRs introduce the same external route into the same OSPF domain, use the external route type with metric-type 2 to avoid suboptimal paths.
Answer: A
NEW QUESTION # 111
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