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[主观题]

During network congestion, PTN devices provide QoS bandwidth for high advanced servic

e type by different queue scheduling policies. Currently, PTN devices adopt two scheduling modes simultaneously, which are()and().

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更多“During network congestion, PTN…”相关的问题

第1题

●Flow control is a function that prevents network congestion by ensuring that （71) do not

●Flow control is a function that prevents network congestion by ensuring that (71) do not overwhelm (72) with datA．There are three commonly used methods for handling network congestion ． (73) is used by network devices to temporarily store bursts of excess data in memory until they can be processed． (74) are used by receiving devices to help prevent their buffers from overflowing ． (75) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted．

(71)~(72)A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

(73)~(75) A．Buffer

B．Source-quench messages

C．Buffering

D．Windowing

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第2题

For an IP service network, its QoS control mechanism usually includes two kinds of mod

els，()and()。hey represent two distinct QoS control techniques. One is to reserve resources to avoid congestion while the other to differentiate services during congestion. Ethernet always adopts the latter.

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第3题

Flow control is a function that prevents network congestion by ensuring that（71)do not ove

Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data. There are three commonly used methods for handling network congestion.(73)is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (74)are used by receiving devices to help prevent their buffers from overflowing.(75)is a flow -control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

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第4题

Flow control is a function that prevents network congestion by ensuring that（66)do not ove

Flow control is a function that prevents network congestion by ensuring that(66)do not over-whelm(67)with data. There are three commonly used methods for handling network congestion.(68)is used by network devices to temporarily store bursts of excess data in memory until they can be processed.(69)are used by receiving devices to help prevent their buffers from overflowing.(70)is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

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第5题

Flow control is a function that prevents network congestion by ensuring that（71)do not ove

Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data.

There are three commonly used methods for handling network congestion.(73)is used by network devices to temporarily store bursts of excess data in memory until they can be processed(74)are used by receiving devices to help prevent their buffers from overflowing.(75)is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

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第6题

Which two benefits does VoFR provide？（）

A. bandwidth efficiency

B. cell-switching

C. congestion notification

D. heterogeneous network

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第7题

Which of the following clock functions are supported by our PTN devices? ()

A. provide BITS external clock input/output interface functio

B.support GPS interface function; provide 1PPS+TOD signal

C.support sync Ethernet interface function; support sync Ethernet clock source

D.support network clock sync via E1 interface; provide clock signal as required by ITU-T G.813

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第8题

Which of the following does ring network protection of PTN devices include？（)

A．A.device protection

B．B.wrapping protection

C．C.link protection

D．D.steering protection

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第9题

Flow control is a function that prevents network congestion by ensuring that _（）_ do not

overwhelm_（）_ with data．There are three commonly used methods for handling network congestion．_（）_is used by network devices to temporarily store bursts of excess data in memory until they can be processed．_（）_ are used by receiving devices to help prevent their buffers from overflowing．_（）_ is a flow－control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted．

A.transmitting devices

B.transmitted devices

C.receiving devices

D.received devices@@@SXB@@@A.transmitting devices

B.transmitted devices

C.receiving devices

D.received devices@@@SXB@@@A.Buffer

B.Source－quench messages

C.window

D.Windowing

E.Buffering@@@SXB@@@A.Buffer

B.Source－quench messages