09年 春 计算机六_1（国外英文资料）.doc

09年 春 计算机六_1（国外英文资料） First, basic knowledge must be done. [1]. The following statements in the C language while (P) S; In the explanation, it is ________. A first executes the statement S, then determines if the statement S is executed based on the value of P If the value of P is true, the statement S is repeated until the value of P is false C statement S will be executed at least once The D statement S will not be executed twice B [2]. Use IE browser to start the FTP client program, users need to input in the address bar:... : / / / user name: password @ FTP server domain name [: port] The FTP [3]. For the role of computers in the progress and development of human society, the following statements are not exactly ________. A has added new means of human development technology B provides new tools for the creation of human culture C has caused new changes in the way people work and live D creates new material resources for human transformation D [4]. Data security is an important issue in the network environment, where data security is an index that is not accessible to the outside world. T_____ F______ F Under the IP protocol, the IP address of the sender and recipient computer should be placed in the head of _________. The IP datagram [6]. In the TCP/IP network, any computer must have an IP address, and in the following IP address statement, the error is ________. A IP address is divided into A, B, and C The total number of B and B IP addresses is more than the total number of class C IP addresses The C IP address is a binary code The IP address in D IPv4 is 32 bits long a. [7]. When the computer USES phone lines to send data to other devices, it is necessary to use a digital signal to adjust the carriers parameters to transmit information over a long distance. The equipment used is ________. A modulator B modem C encoder D decoder a. [8]. The following statements about wan and LAN are incorrect. A wan covers A wider area than LAN The wan will be overwhelmed by t