Constructing Secure optimized WANs v2.0: GB0-391 Exam

"Constructing Secure optimized WANs v2.0", also known as GB0-391 exam, is a H3C Certification. With the complete collection of questions and answers, UpdateDumps has assembled to take you through 468 Q&As to your GB0-391 Exam preparation. In the GB0-391 exam resources, you will cover every field and category in H3CSE-Routing & Switching Certification helping to ready you for your successful H3C Certification.

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  • Updated on: Aug 10, 2026
  • No. of Questions: 468 Questions & Answers

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  • Updated on: Aug 10, 2026
  • No. of Questions: 468 Questions & Answers

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H3C GB0-391 Exam Syllabus Topics:

SectionObjectives
Secure VPN Technologies- IPSec VPN architecture and security basics
- SSL VPN principles and configuration basics
Secure Optimized WAN Overview- WAN architecture and requirements
- Enterprise secure WAN fundamental concepts
BGP/MPLS VPN- MPLS core concepts and label forwarding
- BGP/MPLS VPN implementation and troubleshooting
Quality of Service (QoS)- Traffic policing, shaping and congestion techniques
- Link efficiency and compression technologies
Enhanced Network Security- Threats and secure network best practices
- Network security management methods
Broadband Access Technologies- WAN access configuration methods
- Broadband access principles (IPoE, EPON etc.)
Conventional VPN Technologies- GRE VPN principles and configuration
- L2TP VPN concepts and applications

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. Execute the command on the MSR router and output the following information:
Execute the command on the MSR router and output the following information:
Interface: GigabitEthernet0/1
Output queue: (Urgent queuing: Size/Length/Discards ) 0/100/0
Output queue: (Protocol queuing: Size/Length/Discards ) 0/500/0
Output queue: (Priorit queuing: PQL 1 Size/Length/Discards)
Top: 3/20/42878 Middle: 10/40/0 Normal: 60/60/259195 Bottom: 80/80/344297
Then the correct statement is

A) PQ queue scheduling does not take effect , Top traffic has no packet loss
B) PQ queue scheduling takes effect , no packet loss for Top traffic
C) PQ queue scheduling takes effect , and Top traffic has no packet loss
D) PQ queue scheduling does not take effect , and Middle traffic has no packet loss
E) PQ queue scheduling does not take effect , Top traffic has packet loss
F) PQ queue scheduling takes effect , Top traffic has packet loss


2. Among the control messages defined by the MPCP protocol, the one sent by the OLT is ______ .( Choose one or more )

A) Register
B) GATE
C) Register_Req
D) Register_Ack
E) Report


3. Which of the following statements about SSL VPN deployment is correct is ______ .

A) If only part of the network traffic in the intranet needs to be protected, a dual-arm deployment method is required
B) In order to avoid a single point of failure of SSL VPN from affecting network connectivity, dual-arm deployment is required
C) If the internal network needs to be fully protected, a dual-arm deployment method is required
D) Double arm deployment is used in SSL VPN gateway with firewall integrated networking


4. xz company requires to build its network based on modular enterprise network architecture. Z company in Shenzhen and Xi'an with 1 R & D base, with an office in Beijing and Shanghai ; at 23 with more than capital cities 50 person office ; the 200 has no more than smaller cities 8 people in a small office j There are usually more than 200 market and technical personnel on business trips at any given time .Due to environmental and cost issues, some offices cannot access the headquarters through dedicated lines or packet-switched wide area network connections.According to these circumstances, the network module that Z company should have is ____ .

A) Large type branch network
B) far away / distributed office network
C) dedicated line / packet switched access
D) VPN access into


5. Among the control messages defined by the MPCP protocol, the one sent by the ONU is

A) Reporter
B) Reporter Req
C) Reporter ALXK
D) GATE
E) Report


Solutions:

Question # 1
Answer: D,F
Question # 2
Answer: A,B
Question # 3
Answer: C,D
Question # 4
Answer: C,D
Question # 5
Answer: B,C,E

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