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H3C GB0-391 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Secure VPN Technologies	25%	- Data security fundamentals: encryption, integrity, PKI - IPSec VPN architecture, principle and configuration - SSL VPN architecture and application scenarios
Topic 2: BGP/MPLS VPN	15%	- BGP/MPLS VPN architecture and deployment - MPLS basic concepts and label operation - MPLS LDP protocol
Topic 3: WAN Optimization and QoS	15%	- QoS models and service classification - Congestion management and avoidance - Traffic policing and shaping
Topic 4: Broadband Access Technologies	15%	- ADSL/ADSL2+ access technology - EPON/GPON technology and deployment - PPPoE principle and configuration
Topic 5: Overview of Secure and Optimized WAN	10%	- Remote network connection requirements - Key technologies for secure and optimized WAN
Topic 6: Traditional VPN Technologies	20%	- L2TP VPN principle and configuration - VPN basic concepts and classification - GRE VPN principle and configuration

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question #1

respect to common data stream, a voice stream is more sensitive to delay and jitter, in order to give priority to ensure the forwarding of voice data, the following technique may be employed queue scheduling ____

Reveal Solution Discussion 0

Correct Answer:

Question #2

Which of the following codes has the lowest bandwidth requirement?

A. G.723
B. G.729
C. G.726
D. G.711

Reveal Solution Discussion 0

Correct Answer: A 🗳️

Question #3

Which of the following descriptions of the traditional telephone system is correct is ______ .

A. electrically telephone subscriber loop access through the PBX or central office switches, are connected to the telephone subscriber loop and the PBX a line between the pair comprising TiP and Ring , wherein TiP ground, Ring then PBX negative electrode.
B. electrically telephone ringing tone by the remote PBX providing a voltage or central office switches completed, the dial tone is provided by the telephone set voltage accomplished.
C. electrical telephones and facsimile machines belong to the FXS ordinary telephone devices can be connected to a central office switch via an ordinary telephone line FXO interface.

Reveal Solution Discussion 0

Correct Answer: A 🗳️

Question #4

The VPI/VCI parameters of ADSL connection are negotiated and determined in ____ .