计算机一级自测题（Computer first level self-test question）.doc

计算机一级自测题（Computer first level self-test question） 1 save A computer virus is (). In the computer system A computer program for compilation From the host when the fault happens The virus of infectious disease to human body 21 minutes to save At present, digital camera, optical signal into electrical signal device is mainly used in (). Memory Stick DSP CCD or CMOS D/A 31 minutes to save With sixteen decimal number (BC) 16 is (equivalent octal). Two hundred and seventy-three Two hundred and seventy-four Three hundred and fourteen Three hundred and thirteen 41 minutes to save About the Internet firewall, is wrong in the following description (). It can provide for the internal network security boundary It can prevent outside intrusion internal network It can prevent from internal threats and attacks It can be in the network layer for data selection using filtering technology 51 minutes to save Which of the following statements concerning the computer virus is (right). Computer viruses infect executable files only A computer virus is the suffix EXE file A computer virus can only through the suffix EXE file transmission All computer viruses are artificially created 61 minutes to save The following characters in the ASCII code value is the largest (). S Six T W 71 minutes to save The following statements about computer virus is (right). Kill virus software can remove all virus The computer virus is usually a running program Install anti-virus card of the computer is not infected with the virus Not through the network of infectious virus 81 minutes to save The following character encoding standard, does not belong to the release of our encoding standard is Chinese characters (). GB2312 GBK UCS (Unicode) GB18030 91 minutes to save In the seven ASCII code, in addition to represent numbers, English small letters, and symbols (). Sixty-three Sixty-six Eighty Thirty-two 101 minutes to save Using a binary system, if 3*6=15, then 4*5= (). Seventeen Eighteen Nineteen Twenty 111 min