未分类题

根据下面的文字资料回答 63~67 题
In low-speed network,it is usually adequate to wait for congestion to occur and
then react to it by telling the source of packets to slow down.In high-speed
networks,this approach oftenworks poorly,because in the( 1 )between sending the
notification and notification arriving at the source,thousands of
additional( 2 )may aITive.In ATM network,a major tool for
preventing( 3 )is( 4 )control.when a host wants a new virtual( 5 ),it must
describe the traffic to be offered and the service expected.
第63题:文中( 1 )处正确的答案是( )。
A.interval
B.time
C.slot
D.delay

A.In
B.In
C.when
D.interval
B.time
C.slot

【参考答案】

A

【正确】:A
【参考解析】:
在低速网络中,通常采用碰到拥塞时,通过向源端反映其降低......

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