2005–2006学年秋2005–2006学年秋.doc

浙江大学2005–2006学年秋季学期 《计算机网络》课程期末考试试卷 开课学院：软件学院， 考试形式：闭卷 考试时间：_____年____月____日, 所需时间：120分钟 考生姓名： ___学号： 专业： 得分： 答案： 题号 答 案 得分 1-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 For every following question, please select your best answer only!!!  The transmission unit for the physical layer is a/an __________. packet frame bit byte Which best describes the structure of an encapsulated data packet? Segment header, network header, data, frame trailer Segment header, network header, data, segment trailer Frame header, network header, data, frame trailer Frame header, segment header, data, segment trailer The communication subnet consists of __________. physical layer, data link layer, and network layer physical layer, network layer, transport layer physical layer, data link layer, network layer, transport layer data link layer, network layer, transport layer, session layer Which of the following statements best describes a WAN? It connects LANs that are separated by a large geographic area. It connects workstations, terminals, and other devices in a metropolitan area. It connects LANs within a large building. It connects workstations, terminals, and other devices within a building. Which is the movement of data through layers? Wrapping Encapsulation Traveling Transmission Which is the OSI model? A conceptual framework that specifies how information travels through networks. A model that describes how data make its way from one application program to another throughout a network. A conceptual framework that specifies which network functions occur at each layer All of the above Which of the OSI layers divides the transmitted bit stream into frames? Physical layer Data link layer Network layer Transport layer Which of the following is incorrect? The OSI mod