计算机网络教程自顶向下方法选择题及答案-Chapt-1-Introduction-QUIZZ8页.docx

Chapter 1 Introduction1. A local area network (LAN) is defined by _______________.A) the geometric size of the networkB) the maximum number of hosts in the networkC) the maximum number hosts in the network and/or the geometric size of the networkD) the topology of the network 2. The largest geographic area a wide area network (WAN) can span isA) a townB) a stateC) a countryD) the world 3. The TCP/IP protocol suite consists of _______ layers.A) twoB) threeC) fiveD) six4. A router is involved in ____________ layers of the TCP/IP protocol suite.A) twoB) threeC) fourD) five 5. A link-layer switch is involved in ______________ layers of the TCP/IP protocol suite.A) twoB) threeC) fourD) five 6. In the TCP/IP protocol suite, which of the following is an application layer protocol?A) The User Datagram Protocol (UDP)B) The Internet Protocol (IP)C) The File Transfer Protocol (FTP)D) the Transmission Control Protocol (TCP) 7. In the TCP/IP protocol suite, which of the following is a transport layer protocol?A) The Internet Control Message protocol (ICMP)B) The Internet Protocol (IP)C) The Address Resolution Protocol (ARP)D) The Transmission Control Protocol (TCP) 8. In the TCP/IP protocol suite, which of the following is a network layer protocol?A) The Stream Control Transmission Protocol (SCTP)B) The Secure Shell (SSH)C) The Internet Protocol (IP)D) User Datagram Protocol (UDP) 9. The transport-layer packet in the TCP/IP protocol suite is calledA) a messageB) a datagramC) a segment or a user datagramD) a frame 10. In the TCP/IP protocol suite, the ______ layer is responsible for moving frames from one hop (node) to the next.A) physicalB) data linkC) transportD) network 11. In the TCP/IP protocol suite, the physical layer is concerned with the movement of _______ over the physical medium.A) programsB) dialogsC) protocolsD) bits 12. In the TCP/IP protocol suite, a port number is the identifier at the ____________.A) application layerB) transport layerC) network layerD) physical layer 13. In the TCP/IP protocol suite, a logical address is the identifier at the _______________.A) network layerB) transport layerC) data-link layerD) application layer 14. The _________ layer is responsible for the delivery of a message from one process to another.A) physicalB) transportC) networkD) application 15. The Internet Protocol (IP) is ________ protocol.A) a reliableB) a connection-orientedC) a reliable and connection-orientedD) an unreliable 16. The application layer in the TCP/IP protocol suite is usually considered to be the combination of ________ layers in the OSI modelA) application, presentation, and sessionB) application, transport, and networkC) application, data-link, and physicalD) network, data-link, and physical 17. A proposed standard is elevated to ________ standard status after at least two successful tries.A) informationalB) historicC) draftD) None of the choices are correct 18. An RFC is labeled ________ if it must be implemented by all Internet systems.A) requiredB) electiveC) recommendedD) None of the choices are correct 19. In the original ARPANET, _______ were directly connected to each other.A) interface message processors (IMPs).B) host computersC) networksD) routers 20. _______ was formed to connect universities with no defense ties.A) ARPANETB) CSNETC) NSFNETD) ANSNET 21. Currently _______ is responsible for the management of Internet domain names and addressesA) NICB) ICANNC) ISOCD) IEFE 22. In TCP/IP, a message at the application layer is encapsulated in a packet at the ________ layer.A) networkB) transportC) data linkD) physical 23. In TCP/IP, a message at the transport layer is encapsulated in a packet at the ________ layer.A) networkB) transportC) data linkD) physical 24. In TCP/IP, a message belonging to the network layer is decapsulated from a packet at the ________ layer.A) networkB) transportC) data linkD) physical 25. In TCP/IP, a message belonging to the transport layer is decapsulated from a packet at the ________ layer.A) networkB) transportC) data linkD) physical 26. In TCP/IP, a logical connection between an entity at the network layer can be made with another entity at the ________ layer.A) networkB) transportC) data linkD) physical 27. In TCP/IP, a logical connection between an entity at the data-link layer can be made with another entity at the ________ layer.A) networkB) transportC) data linkD) physical 28. In TCP/IP, a packet at the third layer carries data belonging to the ________ layer and the header belonging to the _________ la。