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H3C GB0-391 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: WAN Optimization and QoS | 15% | - QoS models and service classification - Congestion management and avoidance - Traffic policing and shaping |
| Topic 2: BGP/MPLS VPN | 15% | - MPLS basic concepts and label operation - BGP/MPLS VPN architecture and deployment - MPLS LDP protocol |
| Topic 3: Overview of Secure and Optimized WAN | 10% | - Key technologies for secure and optimized WAN - Remote network connection requirements |
| Topic 4: Traditional VPN Technologies | 20% | - L2TP VPN principle and configuration - VPN basic concepts and classification - GRE VPN principle and configuration |
| Topic 5: Secure VPN Technologies | 25% | - Data security fundamentals: encryption, integrity, PKI - IPSec VPN architecture, principle and configuration - SSL VPN architecture and application scenarios |
| Topic 6: Broadband Access Technologies | 15% | - PPPoE principle and configuration - EPON/GPON technology and deployment - ADSL/ADSL2+ access technology |
H3C Constructing Secure optimized WANs v2.0 Sample Questions:
The correct statement about malformed message defense is ______ .
- A. abnormal shaped TCP packet attack by TCP attacks flag is set to a specific value of the packets
- B. Teardrop attacks use the loopholes of overlapping movement during UDP packet reassembly to attack
- C. To defend against malformed message attacks, it is necessary to conduct targeted defense against the characteristics of each attack
- D. The ping of death attack uses oversized packets to attack
Correct Answer: A,B,C,D 🗳️
In the EPCN network as shown in the figure , when sending data from CLT to users 1 , 2 , 3 , which of the following statements is correct?
- A. terminating end user 1 will only receive the packet 1
- B. terminating end user 1 receives packet 1 , 2 , 3 , but it accepts only the packet 1 , the packet is discarded 2 and packages 3
- C. CNU1 will receive packages 1 , 2 , and 3 and send them all to the end user 1
- D. CNU1 will receive packets 1 , 2 , and 3 , but it will only send packet 1 to end user 1 , and discard packets 2 and 3
- E. CNU1 will only receive package 1
Correct Answer: A,D 🗳️
In the GRE Tunnel interface view, the complete command to configure the tunnel encapsulation mode to GRE is
- A. tunnel gre
- B. protocol gre
- C. t unnel-protocol gre
- D. tunnel protocol gre
Correct Answer: C 🗳️
In the PE build configuration set up a VPN , the following statements is correct _______ .
- A. with the need for each user VPN users, planning a unique private label value
- B. The value of RT is related to the mutual visit relationship between VPN users, but the attribute value of Impert target and Export target must be the same
- C. On a PE , an independent RD value needs to be planned for each VPN
- D. The name of the VPN is set by the user according to the needs of easy understanding and viewing.Different VPN names cannot be the same
Correct Answer: C,D 🗳️
Which of the following descriptions about the structure of SIP messages are correct ?
- A. elimination main message body content of the message is a description of the session to be set up, some special SIP message without the message body
- B. Since the start line, the message header, the message body is a SIP basic components message lacks any part of the SIP message is illegal cancellation message
- C. There are some special SIP response messages without a start line
- D. The some SIP message contains one or more message header, used to identify the type of message
Correct Answer: A 🗳️
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