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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. Which statement about the VLAN planning of the EPCN network is correct?

A) The PSPV method uses the same VLAN to mark all services of the same user , but the service quality cannot be guaranteed.
B) In PUPV mode, all users in the cell share the same business VLAN ID
C) PUPSPV mode can be precisely designated user service, each service of each user has a corresponding VLAN ID identity
D) PUPSPV mode can accurately user and business equipment, each user's business has a corresponding VLAN ID identification

2. Which of the following service models are usually included in QoS ?

A) IntServ ( Integrated Service )
B) FIFO ( First Input First Output )
C) DiffServ ( Differentiated Service )
D) Best Effort

3. The following VPN technology, belonging to the second layer of VPN are ____ .( Choose one or more )

A) VPLS
B) IPSec VPN
C) VLL
D) GRE VPN

4. Which of the following are signaling _____ .

A) by the user using the phone, pressing the number keys to PBX transmits the called number representing a range of low frequency tones and high frequency due.
B) by the user when using the phone, pick up the telephone handset, the handset came from the dial tone.
C) by the user using the phone, pick up the telephone handset called number, the called telephone ringing
D) by the user using the phone, pick up the telephone handset called number, outgoing echo from handset bell

5. In the VoIP network, the bandwidth saved by VAD technology has nothing to do with which of the following solid elements

A) said language and characteristics of the speaker
B) selected by signaling type
C) mesh network extent owned room
D) selected encoding type used

Solutions: