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| Section | Weight | Objectives |
|---|---|---|
| Routing and Traffic Control | 10% | - Routing policy and filtering - Policy-based routing - Route import and redistribution |
| Ethernet Switching Technologies | 7% | - Spanning Tree Protocol - VLAN principles and configuration - Link aggregation and stack technology |
| Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| OSPF Fundamentals | 16% | - OSPF special applications and troubleshooting - OSPF principles and operation mechanisms - OSPF configuration and optimization |
| Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| 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 |
| Network Security | 8% | - ACL and packet filtering - Attack defense and security policy - AAA authentication |
| Multicast Technologies | 9% | - Multicast basic concepts - PIM protocol - IGMP protocol |
| Network Reliability | 7% | - Device redundancy and link backup - BFD technology - VRRP protocol |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| BGP Fundamentals | 17% | - BGP characteristics and working principles - BGP configuration and policy application - BGP route attributes and selection |
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問題 #81
In inter-domain packet filtering, which of the following options belongs to the outbound direction?
答案：B
問題 #82
The IP prefix list configuration on a Huawei router is shown below. Which of the following routes can match the IP prefix list and be permitted?
ip ip-prefix huawei index 10 deny 10.1.1.0 24
ip ip-prefix huawei index 20 permit 10.1.1.1 32
ip ip-prefix huawei index 30 permit 10.1.2.0 24 less-equal 32
答案：D
問題 #83
On an STP network, the root bridge, root port, and designated port are elected in sequence. The election rules of these ports are different. List the steps for electing the root port in sequence.
答案：
解題說明：
A screenshot of a computer Description automatically generated
Explanation of Root Port Election in STP:
In a Spanning Tree Protocol (STP) network, the Root Port is selected on each switch (except the Root Bridge). The Root Port is the port with the lowest path cost to the Root Bridge. If there is a tie in path cost, the following criteria are used in sequence to break the tie:
Steps for Root Port Election in Sequence:
* RPC Comparison (Root Path Cost):
* The port with the lowest Root Path Cost is preferred.
* Root Path Cost is the cumulative cost of the path to the Root Bridge.
* Peer BID (Bridge ID) Comparison:
* If the Root Path Costs are equal, the Bridge ID of the connected switch (peer) is compared.
* The port connecting to the switch with the lower Bridge ID is preferred.
* Peer PID (Port ID) Comparison:
* If the Bridge IDs are equal, the Port ID of the peer's sending port is compared.
* The port connecting to the lower Port ID is preferred.
* Local PID (Port ID) Comparison:
* If all else is equal, the Local Port ID of the switch is used.
* The port with the lower Local Port ID is selected.
問題 #84
In route-policy, what are the BGP attributes that can be used in the apply clause? (Multiple choice)
答案：A,B,D
問題 #85
When receiving a packet, a Huawei router matches the packet against ACL rules. The default ACL matching order used by the Huawei router is.
答案：
解題說明：
Sequential
Explanation:
ACL Matching in Huawei Routers:
Access Control Lists (ACLs) are used to filter packets based on specific criteria, such as source/destination IP, ports, or protocols.
When a packet arrives, the Huawei router processes it against the configured ACL rules to decide whether to permit or deny the packet.
問題 #86
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