Free Access H3C.GB0-391.v2022-05-05.q128 Practice Test (Page 22)

Question 101

There are a large number of two-way video and voice communication needs between branches and headquarters of a company, if you want to choose a broadband access to connect branch offices and headquarters, the following options are the most ideal of a _____ .

A.ADSL

B.EPON

C.APON/BOPN

Question 102

The factors that affect VoIP voice quality include ____ .

A.back sound

B.Packet loss on IP network

C.selected encoding type used

D.selected by signaling type

Question 103

Which of the following statements about SSL VPN access control is correct?

A.static state authorized authentication including local and external authentication certification in two ways

B.dynamic state authorization is not required to create a security policy

C.dynamic state authorization authorization and security policy is still the intersection of authorization

D.dynamic state does not require authorization client terminal installs

Question 104

The key indicators used to measure network transmission capacity are

A.When the delay ( Dela )

B.wide band ( Bandwidth )

C.swallow spit amount ( Throughput )

D.shaking motion ( the Jitter )

Question 105

Regarding the echo in the VoIP telephone system, which of the following descriptions are correct ?

A.speech voice gateway device when performing analog to digital conversion may introduce echo, an echo suppression function but can be configured to reduce the impact on the voice gateway.

B.In VoIP networks, echo is related to the choice of encoding.The greater the compression ratio, the greater the relative echo in the network.

C.language voice gateway equipment itself does not bring new echo, but the IP network to bring network latency, increasing the echo time delay, leading to the original feel of the echo in VoIP become energy network The echo of being felt.

D.back sound into electrical echo and acoustic echo, electrical echo conventional telephone systems is mainly due to two, four-wire transducer impedance mismatch caused by

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