The policy action of color is used for congestion control un

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

C.window

D.Windowing

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

B.Source－quench messages

C.window

D.Windowing

E.Buffering

According to Paragraph 2, which of the following is true of colours?

A Colors are encoded in girls' DNA

B Blue used to be regarded as the color for girls

C Pink used to be a neutral color in symbolizing genders

D White is preferred by babies

●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

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

A.congestion in an upstream router

B.congestion in a downstream router

C.contention for queue space on an egress interface

D.contention for queue space on an ingress interface

You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)

A. Congestion avoidance

B. Windowing

C. Cut-through

D. Buffering

E. Load Balacing

F. Fast Forward

A.mark

B.color

C.filter

D.discard

The network layer provides services to the transport layer．It can be based on either (1)．In both cases，its main job is (2) packets from the source to the destination．

In network layer，subnets can easily become congested，increasing the delay and (3).

for packets．Network designers attempt to avoid congestion by proper design．Techniques include (4) policy，caching，flowcontrol，and more．

The next step beyond just dealing with congestion is to actually try to achieve a promised quality of service．The methods that can be used for this include buffering at the client，traffic shaping，resource (5)，and admission control．Approaches that have been designed for good quality of service include integrated services(including RSVP) ，differentiated services， and MPLS．

(1)

A．virtual circuits or datagrams

B．TCP or UDP

C．TCP or IP

D．IP or ARP

A.In the absence of a terminating action, all routes are accepted.

B.The route will be evaluated by the second term in the policy.

C.The default action will be applied.

D.In the absence of a termination action, all routes are rejected.

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