●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 often works poorly, because in the (71) between sending the notification

题目

●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 often works poorly, because in the (71) between sending the notification and notification arriving at the source, thousands of additional (72) may arrive．In ATM network , a major tool for preventing (73) is (74) control．When a host wants a new virtual (75) ,it must describe the traffic to be offered and the service expected．

(71) A．interval

B．time

C．slot

D．delay

(72) A．packets

B．cells

C．message

D．files

(73) A．collision

B．congestion

C．drop

D．delay

(74) A．flow

B．admission

C．traffic

D．time

(75) A．path

B．rout

C．circuit

D．way

相似考题

1.下面哪些统计项属于关键统计数据()A.busy_tch_meanB.tch_congestion_rateC.sdcch_traffic_carriedD.alloc_sdcch

2.The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure

3.InwhichofthefollowinglistsofAPSActionRequestsistheprioritycorrectlyarrangedfromlowesttohighest?()A.Wait-to-Restore，ForcedSwitch，ManualSwitch，LockoutofProtectionB.ManualSwitch，Wait-to-Restore，LockoutofProtection，ForcedSwitchC.LockoutofProtection，ForcedSwitch，ManualSwitch，Wait-to-RestoreD.LockoutofProtection，ManualSwitch，ForcedSwitch，Wait-to-RestoreE.Wait-to-Restore，ManualSwitch，ForcedSwitch，LockoutofProtectionF.Wait-to-Restore，ManualSwitch，LockoutofProtection，ForcedSwitch

4.——How did you like Nick’s performance last night ?—— To be honest ,his singing didn’t ________to be much?A. appealB. belongC. referD. occur

更多“●In low－speed network,it is usually adequate to wait for congestion to occur and then reac ”相关问题

  • 第1题：

    That sound doesn’t _____ in his language so it’s difficult for him to pronounce.

    [A] happen

    [B] take place

    [C] occur

    [D] run


    正确答案：C

  • 第2题：

    Our public transportation is not sufficient for the need of the people in our major cities.

    A:additional
    B:efficient
    C:excessive
    D:adequate

    答案：D
    解析：
    本句意思：我们的公共交通运输不能满足大城市里人们的需要。sufficient意为“足够的，充足的”，与adequate（足够的）意思相近。additional附加的，另外的；efficient高效的；excessive 过多的。

  • 第3题：

    在生产者/消费者问题中，用s表示互斥信号量，e表示空缓冲区资源信号量，n表示满缓冲区资源信号量，下列生产者和消费者的操作（生产者和消费者可并发执行），可能产生死锁的是（）。

    A．生产者：wait(s); wait(e); append(); signal(n); signal(s);消费者： wait(s); wait(n); take(); signal(e); signal(s);

    B．生产者：wait(s); wait(e); append(); signal(n); signal(s);消费者： wait(n); wait(s); take(); signal(s); signal(e);

    C．生产者：wait(e); wait(s); append(); signal(s); signal(n);消费者： wait(s); wait(n); take(); signal(e); signal(s);

    D．生产者：wait(e); wait(s); append(); signal(s); signal(n);消费者： wait(n); wait(s); take(); signal(s); signa


    错

  • 第4题：

    [A] occur

    [B] engage

    [C] confront

    [D] encounter


    正确答案：D
    31. D 
    由第三段的最后一句话：If stressful situations are continually encountered, …可以找到此题答案。People of all ages encounter stress. 各个年龄段的人都会遇到压力。[D] encounter 遭遇，遇到，强调“偶然遇见”；[A] occur vi. 发生，出现；[B] engage vt. 使忙碌，雇佣，预定，使从事于；例：be engaged in…忙于(从事)……。[C] confront①面对；面临；遭遇。例：to confront danger(勇敢地)面对危险②(与with 连用)使面对；使面临。例：be confronted with crisis 面临危机。

  • 第5题：

    —How did you like Nick′s performance last night?
    —To be honest,his singing didn′t__________to me much.

    A.appeal
    B.belong
    C.refer
    D.occur

    答案：A
    解析：
    考情点拨：本题考查动词辨析应试指导：句意：——你觉得昨晚Nick的表演怎么样?——说实话，他的演唱并不怎么吸引我。appeal to吸引；belong to属于；refer to提到，涉及；occur to突然想到。

  • 第6题：

    （20分) 一个好题目需要符合的三要素，分别是：

    A．Interesting

    B．Manageable

    C．Important

    D．Adequate


    Manageable;Important;Adequate

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