Prepare with H3C GB0-391 exam practice material, pass for sure
Updated: Aug 01, 2026
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H3C GB0-391 Exam Overview:
| Certification Vendor: | H3C |
| Exam Name: | Constructing Secure optimized WANs v2.0 |
| Exam Number: | GB0-391 |
| Related Certifications: | GB0-371 Building H3C High-Performance Campus Network v2.0 GB0-381 H3C Large-Scale Network Routing Technology v2.0 |
| Passing Score: | 600/1000 |
| Exam Price: | $135 USD |
| Exam Duration: | 60 minutes |
| Exam Format: | Multiple Choice, Single Choice, Fill-in-the-blank |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 50 |
| Available Languages: | English, Simplified Chinese |
| Recommended Training: | Constructing Secure Optimized WANs v2.0 Official Training |
| Exam Registration: | Prometric Registration |
| Sample Questions: | H3C GB0-391 Sample Questions |
| Exam Way: | Online proctored or onsite testing center |
| Pre Condition: | Valid H3CNE-RS certification recommended |
| Official Syllabus URL: | https://www.h3c.com/en/Training_Certification/ |
H3C GB0-391 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Overview of Secure and Optimized WAN | 10% | - Key technologies for secure and optimized WAN - Remote network connection requirements |
| Topic 2: Secure VPN Technologies | 25% | - SSL VPN architecture and application scenarios - Data security fundamentals: encryption, integrity, PKI - IPSec VPN architecture, principle and configuration |
| Topic 3: Traditional VPN Technologies | 20% | - VPN basic concepts and classification - GRE VPN principle and configuration - L2TP VPN principle and configuration |
| Topic 4: BGP/MPLS VPN | 15% | - BGP/MPLS VPN architecture and deployment - MPLS basic concepts and label operation - MPLS LDP protocol |
| Topic 5: WAN Optimization and QoS | 15% | - Traffic policing and shaping - QoS models and service classification - Congestion management and avoidance |
| Topic 6: Broadband Access Technologies | 15% | - EPON/GPON technology and deployment - PPPoE principle and configuration - ADSL/ADSL2+ access technology |
H3C Constructing Secure optimized WANs v2.0 Sample Questions:
1. The correct statement about asymmetric encryption algorithm is ____ .
A) Non- symmetric encryption algorithm points for each user a key pair and a private key of a public key date
B) Non high efficiency symmetric encryption algorithm
C) Non- symmetric encryption algorithm suitable for a large amount of data transfer environment
D) Non- symmetric encryption algorithm has the RAS , DH , etc.
2. When the user uses the phone, after picking up the phone handle and inputting the called number, which of the following signaling is the ring back tone from the receiver?
A) Call call signaling
B) monitoring tube signaling
C) letter information signaling
D) to address signaling
3. A VoIP network using the H.323 protocol is interconnected with the PSTN network.Which of the following components must be included in the VoIP network to ensure that users can make local calls from the VoIP network
A) Shou
B) MCU
C) terminating end
D) net off
4. When deploying a BGP MPLS VPN network, in order to be able to establish an end-to-end MPLS tunnel between PEs , _______ is required .
A) not polymerizable PE of Loopback interface address routing
B) PEs need to learn from each other the precise route of the 32 -bit mask of the Loopback interface address of the peer PE
C) PE cannot aggregate private network routes learned from CE
D) no polymerizable address routing interconnect the public network interface
5. QoS can determine which specific behavior set a packet belongs to by _____ .( Choose one or more )
A) match with IP Precedence
B) matching with 802.1x
C) matched with IP addresses , the MAC address , the VLAN number, protocol type, port number of the transport layer
D) match with COS
E) Configure the trusted port priority or packet priority on the interface
F) match with DSCP
Solutions:
| Question # 1 Answer: A,D | Question # 2 Answer: C | Question # 3 Answer: C,D | Question # 4 Answer: A,B | Question # 5 Answer: F |
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