Free Access H3C.GB0-391.v2022-05-05.q128 Practice Test (Page 25)

Question 116

Which of the following statements about the access network is correct is _____

A.access into generally refers to the connection between the user and the network operator of the network close to the user central office

B.Compared with backbone network, access network is often the bottleneck of network transmission speed

C.access network typically includes a user transmission system, terminal multiplexers or network,

D.The access network can also be Ethernet

Question 117

Which of the following descriptions of traditional telephone systems are correct?

A.electrically telephone dial tone and positive tone, as there are peer PBX or central office switch provides complete voltage

B.pass the real machine is FXS ordinary telephone device, via an ordinary telephone connected to a central office switch dialing FXO interface

C.electrically telephone user connected to the ring down PBX or central office switches, are connected by a telephone subscriber loop and PBX a line between a pair comprising a TIP and Ring , wherein Qing ground, TIP access PBX negative electrode

Question 118

Among the control messages defined by the MPCP protocol, the one sent by the OLT is ______ .( Choose one or more )

A.Register_Req

B.Register

C.Register_Ack

D.GATE

E.Report

Question 119

The information displayed on the MSR router is as follows:
Sstem Defined Behavior Information:
Behavior: ef
Expedited Forwarding:
Bandwidth 20 (% ) Cbs-ratio 25
Behavior: af
Assured Forwarding:
Bandwidth 20 (%)
Discard Method: Tail
Behavior: be
-none-
Then the following statement is correct _____

A.explicit information indicating the behavior of a user-defined

B.use can change the percentage of the bandwidth occupied by the queue user behavior

C.which is defined in the EF queue and AF queues, bandwidth is reserved bandwidth occupied respectively 20%

D.significant information is shown the behavior of the system defined

Question 120

In the SIP network, which of the following devices belong to UA?

A.SIP server

B.connected to a common voice on the gateway PSTN phone

C.lP phone

D.language voice gateway

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