cutout
pressure controller
controller switch
cutout switch
第1题：
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
第2题：
What statement is true？（）
第3题：
●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
第4题：
Which two statements are true regarding an Ethernet collision domain?（）
第5题：
Which statement is true regarding an Ethernet collision domain?（）
第6题：
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
第7题：
Which two statements are correct about firewall filters in the Junos OS?（）
第8题：
A.When a single device is configured to provide differentiated services.
B.When multiple devices in a network are configured to use CoS to provide differentiated services.
C.When a device is used to connect to another autonomous system.
D.When CoS is used to classifiy traffic as low priority.
第9题：
Which of the following utilities can be used to determine the current partition information on an attached storage device？（）
第10题：
Which statement describes the distributed call control model in VoIP networks？（）