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| Section | Weight | Objectives |
|---|---|---|
| Routing and Traffic Control | 10% | - Routing policy and filtering - Policy-based routing - Route import and redistribution |
| BGP Fundamentals | 17% | - BGP configuration and policy application - BGP characteristics and working principles - BGP route attributes and selection |
| Network Reliability | 7% | - VRRP protocol - Device redundancy and link backup - BFD technology |
| Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| Ethernet Switching Technologies | 7% | - Spanning Tree Protocol - VLAN principles and configuration - Link aggregation and stack technology |
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| Network Security | 8% | - Attack defense and security policy - AAA authentication - ACL and packet filtering |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| OSPF Fundamentals | 16% | - OSPF special applications and troubleshooting - OSPF principles and operation mechanisms - OSPF configuration and optimization |
| Multicast Technologies | 9% | - IGMP protocol - PIM protocol - Multicast basic concepts |
| IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
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NEW QUESTION # 368
L2TP does not provide security encryption. Therefore, other security measures, such as IPsec, are required to ensure the security of the entire tunnel for data transmission.
Answer: B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is L2TP (Layer 2 Tunneling Protocol)?
L2TP is a tunneling protocol used to transport Layer 2 frames over IP networks.
It is commonly used to establish VPNs but does not provide built-in encryption or security for the transmitted data.
2. Why L2TP Requires Additional Security Measures:
Since L2TP does not encrypt traffic, it is vulnerable to eavesdropping and tampering.
To secure L2TP tunnels, it is often paired with IPsec, which provides strong encryption and authentication.
The combination of L2TP and IPsec is known asL2TP/IPsec.
3. Why the Statement is TRUE:
The statement accurately describes the limitation of L2TP (lack of encryption) and the need for additional security measures like IPsec.
Reference:
Huawei HCIA-Datacom Study Guide, Chapter "L2TP Tunnel Configuration and Security." RFC 2661: Layer Two Tunneling Protocol (L2TP).
NEW QUESTION # 369
On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2.
In this case, which of the following routing entries may exist in the routing table of R2?
Answer: B,C,D
NEW QUESTION # 370
In the network shown in the figure, all switches run the RSTP protocol. If the E1 interface of SWB fails, the RSTP processing process: (Multiple choice)
Answer: B,C,D
NEW QUESTION # 371
On an RSTP network, if a port receives an RST BPDU and finds that its buffered RST BPDU is superior to the received RST BPDU, the port discards the received RST BPDU without responding.
Answer: B
Explanation:
RST BPDU Handling
On an RSTP network, if a port receives an RST BPDU and determines its own buffered BPDU is superior, it discards the received BPDU without responding. This ensures stability and proper convergence in the network.
NEW QUESTION # 372
As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state.
At this time, which of the following processes will the network go through to achieve stability?
Answer: B
NEW QUESTION # 373
......
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