《SSD8全部选择题冗余删减版》.doc

1. Which of the following parameters can be specified in the header of a request in the Hypertext Transfer Protocol (HTTP)? The types of image formats that a browser understands The type of browser (e.g., Netscape, Internet Explorer) making the request The method by which the request is to be satisfied—for example, whether the request is a GET of a form submission (a) III only (b) I, II, and III (c) II and III only (d) I and II only Correct answer is (b) Feedback: See section 1.1.1 of the course notes. -------------------------------------------------------------------------------- 2. Which of the following distinguish stream sockets (e.g., TCP) from datagram sockets (e.g., UDP)? Stream sockets guarantee delivery of the data sent through them. Stream sockets can be used to send application data to a remote host, whereas datagram sockets can only send control commands. Stream sockets have greater overhead. (a) I and III only (b) I and II only (c) II and III only (d) I only Correct answer is (a) Feedback: See section 1.1.1 of the course notes. -------------------------------------------------------------------------------- 3. A computer sends 100 Kbytes of aggregate data to another computer through the network. If this transmission time takes 10 seconds and setup time is negligible, the throughput of this network is (a) not able to be determined with the information given (b) exactly 10 Kbps (c) in the range from 60 to 120 Kbps (kilobits per second) (d) in the range from 6 to 12 Kbps (kilobits per second) Correct answer is (c) Feedback: See section 1.1.4 of the course notes. -------------------------------------------------------------------------------- 4. An application on a computer sends data through a socket to another computer. Which of the following are specified by the communication protocol? The contents of the message body The speed of transmission The header format, which specifies the header f