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, PrepPDF 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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  • Exam Code: GB0-391
  • Exam Name: Constructing Secure optimized WANs v2.0
  • Certification Provider: H3C
  • Corresponding Certification: H3CSE-Routing & Switching
  • Updated: Aug 29, 2026
  • No. of Questions: 468 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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H3C GB0-391 Exam Syllabus Topics:

SectionObjectives
Topic 1: BGP/MPLS VPN- BGP/MPLS VPN implementation and troubleshooting
- MPLS core concepts and label forwarding
Topic 2: Enhanced Network Security- Network security management methods
- Threats and secure network best practices
Topic 3: Secure VPN Technologies- IPSec VPN architecture and security basics
- SSL VPN principles and configuration basics
Topic 4: Secure Optimized WAN Overview- Enterprise secure WAN fundamental concepts
- WAN architecture and requirements
Topic 5: Quality of Service (QoS)- Link efficiency and compression technologies
- Traffic policing, shaping and congestion techniques
Topic 6: Broadband Access Technologies- Broadband access principles (IPoE, EPON etc.)
- WAN access configuration methods
Topic 7: Conventional VPN Technologies- L2TP VPN concepts and applications
- GRE VPN principles and configuration

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question 1

Configure the CA ( Authoritative Certification Authority ) trusted by the PK domain as 3HCCA , and configure the URL of the registration server as ca , and the commands for h3c.com are respectively

A. In PKI domain view, configure certificate url ca.h3c.com
B. In PKI domain view, configure the ca identifier H3CCA
C. In PKI domain view, configure certificate request url ca.h3c.com
D. In the PKI domain view, configure the certificate identifier H3CCA


Question 2

Which description is correct about L2TP VPN and SSL VPN?

A. All need to install and maintain the client
B. Both support Web access
C. are based on UDP encapsulation
D. All support lP access mode


Question 3

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


Question 4

Which of the following descriptions of traditional telephone systems are correct?

A. electrically telephone user connected to the ring down PBX or central office switches, are connected by a telephone subscriber loop and PBX a line between a pair comprising a TIP and Ring , wherein Qing ground, TIP access PBX negative electrode
B. electrically telephone dial tone and positive tone, as there are peer PBX or central office switch provides complete voltage
C. pass the real machine is FXS ordinary telephone device, via an ordinary telephone connected to a central office switch dialing FXO interface


Question 5

In the private network routing table of the PE equipment, the next hop of the remote user's private network route is ______ .

A. distal end CE of the loopback interface address
B. distal end of the PE and CE interface address connected
C. present P E of loopbac K interface address
D. distal end PE of the loopback interface address


Solutions:

Question 1
Answer: B,C
Question 2
Answer: D
Question 3
Answer: B,C
Question 4
Answer: B
Question 5
Answer: D

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