中级网络工程师相同项单选集试卷（中级网络工程师）.docVIP

试卷第 PAGE 1 页共 NUMPAGES 1 页 中级网络工程师相同项单选集试卷（中级网络工程师） 姓名:_____________ 年级:____________ 学号:______________ 题型 选择题 填空题 解答题 判断题 计算题 附加题 总分 得分 评卷人 得分 1、 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 (61)between sending the notification and notification arriving at the source, thousands of additional (62)may arrive. In ATM network, a major tool for preventing (63)is (64)control. When a host wants a new virtual (65), it must describe the traffic to be offered and the service expected.（61）是（ ） A.interval B.time C.slot delay2、 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 (61)between sending the notification and notification arriving at the source, thousands of additional (62)may arrive. In ATM network, a major tool for preventing (63)is (64)control. When a host wants a new virtual (65), it must describe the traffic to be offered and the service expected.（62）是（ ） A.packets B.cells C.message files3、 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 (61)between sending the notification and notification arriving at the source, thousands of additional (62)may arrive. In ATM network, a major tool for preventing (63)is (64)control. When a host wants a new virtual (65), it must describe the traffic to be offered and the service expected.（63）是（ ） A.collision B.congestion C.drop delay4、 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