【精选】2004-2005春夏学期《计算机网络基础》期末试卷.pdf

浙江大学2004–2005学年春夏季学期 《计算机网络基础》课程期末考试试卷 开课学院：计算机学院 ，考试形式：闭，允许带___________入场 考试时间： 2005年 7月 5日,所需时间： 120分钟 考生姓名： 学号： 专业： 题序 一 二 三 四 五 总 分 得分 评卷人 注意事项： 1.请把答案写在答题纸对应的题号内； 2.有关IP地址表达方式，如果没有特别的掩码标明，则均按标准地址分类表示。 一、 Please select the best choice for following questions (50 points) 1. What is the advantage of using a layered model of networking? A. Simplified the network B. For the purpose of standardization C. Divides the complexity of internetworking into discrete, more easily learned operation subsets D. All of the above 2. What is the name of protocol data unit (PDU) at the network layer of the OSI reference model? A. Transport B. Frame C. Packet D. Segment 3. Which is true when a broadcast is sent out in an Ethernet 802.3 LAN? A. The broadcast is sent only to the default gateway. B. The broadcast is sent only to the destination hardware address in the broadcast. C. The broadcast is sent to all devices in the collision domain. D. The broadcast is sent to all devices in the broadcast domain. 4. Segmentation of a data stream happens at which layer of the OSI model? A. Physical B. Data Link C. Network D. Transport 5. Which of following international standard defines for Fast Ethernet? A. IEEE 802.3 B. IEEE 802.3z 第 1 页 共 8 页 C. IEEE 802.3u D. IEEE 802.3ae 6. What does the Data Link layer use to find hosts on a local network? A. Logical network addresses B. Port numbers C. Hardware addresses D. Default gateways 7. What were the key reasons the ISO released the OSI model? A. To allow companies to charge more for their equipment B. To help vendors create interoperable network