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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. 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) selected encoding type used
D) mesh network extent owned room

2. In the PPPoE application of ADSL , when the CPE side uses MSR router + ADSL Modem for networking, and the CO side DSLAM uses ATM for uplink, which interfaces need to be configured on the router on the CPE side ?

A) Virtual-Ethernet
B) dial number Interface
C) Yi Tai Ethernet port
D) DSL interface
E) Virtua l-Template

3. Among the packets encapsulated by the GRE protocol, the negotiation protocol is - protocol, and the encapsulation order of the packet from the link layer to the payload data is

A) link path layer -> IPX -> IP -> payload data
B) link path layer -> GRE -> IPX -> IP -> payload data
C) link path layer -> GRE -> IP -> IPX -> payload data
D) link path layer -> IP -> IPX -> payload data

4. The following options belong to the co- side equipment is ____ .

A) access into the switch
B) machine top box
C) DSLAM
D) access the server
E) cable modem

5. Which of the following statements about EPCN are correct?

A) EPCN is an active EoC technology, and the user terminal is an active device, thus avoiding the limitation of the network topology without passive EoC technology.
B) EPCN is a passive EoC technology.The user terminal is a passive device, and the system transmission loss tolerance is low, which limits its application scope to a certain extent.
C) EPCN conforms to HFC- based broadband access specifications such as DOCSIS 1.0/1.1/2.013.0 .
D) EPCN system main memory deployment coaxial cable distribution network portion of the network, the HFC backbone mainly EPON technology fit therewith.

Solutions: