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Updated: Aug 07, 2026
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H3C GB0-391 certification exam covers a range of topics related to WAN design, including WAN optimization techniques, security best practices, and network virtualization. It also covers advanced topics such as Quality of Service (QoS) and traffic engineering, which are essential for building high-performance WANs.
H3C GB0-391 exam is a challenging certification that requires a lot of preparation and study. However, it is also an important certification that can help you advance your career in the IT field. With this certification, you can demonstrate your expertise in WAN design and security and increase your value to your employers.
H3C GB0-391 exam is designed to test a candidate's knowledge and skills in deploying security solutions that are optimized for WAN environments. GB0-391 exam measures the candidate's ability to design, configure, and troubleshoot secure WANs, including enterprise-wide virtual private networks (VPNs). Candidates must demonstrate their knowledge of various WAN optimization techniques, including traffic shaping, queuing, and compression. They must also be familiar with the latest security technologies, such as firewalls, intrusion prevention systems (IPS), and virtual private network (VPN) technologies.
H3C GB0-391 Exam Overview:
| Certification Vendor: | H3C |
| Exam Name: | Constructing Secure Optimized WANs v2.0 |
| Exam Number: | GB0-391 |
| Available Languages: | English, Chinese |
| Real Exam Qty: | 50 |
| Exam Price: | USD 135 (approx.) |
| Exam Duration: | 60 minutes |
| Passing Score: | 600/1000 (60%) |
| Certificate Validity Period: | 3 years (part of H3CSE Routing & Switching certification validity) |
| Exam Format: | Single choice, Multiple choice, True/False, Gap fill (varies by item set) |
| Related Certifications: | GB0-371 Building H3C High-Performance Campus Network V2.0 GB0-381 H3C Large-Scale Network Routing Technology V2.0 |
| Sample Questions: | H3C GB0-391 Sample Questions |
| Exam Way: | Proctored exam arranged by PROMETRIC, available at testing centres or via approved delivery partners. |
| Pre Condition: | Recommended to hold H3CNE certificate and fundamental networking knowledge; part of H3CSE Routing & Switching certification track (requires GB0-371 and GB0-381). |
| Official Syllabus URL: | https://www.h3c.com/en/Training_Certification/Technical_training___certification/Certification_Project/H3CSE/ |
H3C GB0-391 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Quality of Service (QoS) | - Traffic policing, shaping and congestion techniques - Link efficiency and compression technologies |
| Broadband Access Technologies | - Broadband access principles (IPoE, EPON etc.) - WAN access configuration methods |
| Secure Optimized WAN Overview | - Enterprise secure WAN fundamental concepts - WAN architecture and requirements |
| Conventional VPN Technologies | - L2TP VPN concepts and applications - GRE VPN principles and configuration |
| Secure VPN Technologies | - IPSec VPN architecture and security basics - SSL VPN principles and configuration basics |
| BGP/MPLS VPN | - BGP/MPLS VPN implementation and troubleshooting - MPLS core concepts and label forwarding |
| Enhanced Network Security | - Network security management methods - Threats and secure network best practices |
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