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单选题
file（）
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锉
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扳手
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钻
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凿子
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下面创建一个新文件对象方法错误的是( )。A．File myFile; myFile=new File("mulu/file");B．File myFile=new File();C．myFile=new FileC/mulu","filel");D．File myDir=new file("/mulu"); myFile=new File(Dir, "filer');
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请选择下面File参数书写正确的一项( )。A．File("d:\\file\test3.txt")B．File("d:\\file\\test3.txt")C．File("d:\file\test3.txt")D．File("d:\file\\test3.txt")
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What will a new Ezonexam router do during startup if a configuration file is not located in NVRAM?A．It will search for the configuration file in the locations specified by boot system commands.B．It will search for the configuration file in flash and if no configuration file is found there, it will enter the setup dialog.C．It will search for the configuration file on a TFTP server and if no configuration file is found there, it will enter the setup dialog.D．It will search for the configuration file in flash and if no configuration file is found there, it will load a limited configuration file from ROM.E．It will search for the configuration file on a TFTP server and if no configuration file is found there, it will load a limited configuration file from ROM.
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The(72)turns the source file into an object file and the(73)turns the object file into an executable file.A．translatorB．compilerC．interpreterD．linker
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UNIX系统命令cat file1file2功能是（）。A、将文件file2的内容添加到文件file1的末尾B、将文件file1的内容添加到文件file2的末尾C、连接文件file1和file2D、显示文件file1和file2
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Which file characteristic cannot be used in the Cisco IronPort Data Security policies？（） A、 file typeB、 file sizeC、 file ageD、 file name
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What will a router do during startup if a configuration file is not located in NVRAM?（）A、it will search for the configuration file in the locations specified by boot system commands.B、it will search for the configuration file in flash and if no configuration file is found there, it will enter the setup dialog.C、it will search for the configuration file on a TFTP server and if no configuration file is found there, it will enter the setup dialog.D、it will search for the configuration file in flash and if no configuration file is found there, it will load a limited configuration file from ROM.E、it will search for the configuration file on a TFTP server and if no configuration file is found there, it will load a limited configuration file from ROM.
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Which two construct an OutputSream that appends to the file “file.txt”？ （）A、 OutputStream out=new FileOutputStream（“file.txt”）；B、 OutputStream out=new FileOutputStream（“file.txt”， “append”）；C、 FileOutputStream out=new FileOutputStream（“file.txt”， true）；D、 FileOutputStream out=new FileOutputStream（new file（“file.txt”））；E、 OutputStream out=new FileOutputStream（new File（“file.txt”）true）；
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为文件c：/java/example/file.txt建立File对象file1可以采用（）语句序列。A、File file 1=new File（“c：//java//example//file.txt”）B、String path=”c：/java/example/”Filefile1=newFile（path，”oldfile.txt”）C、File dir 1=new File（“c：//java//example”）Filefile1=newFile（dir1，”oldfile.txt”）D、File file 1=new File（“c：/java//example/file.txt”）
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如果要将文件名file1修改为file2，下列命令（）可以实现。A、cp file1file2B、mv file1file2C、ls file1file2D、ll file1file2
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Which of the following will occur if an operator types the command vi file.out?（）A、If the file exists it will be opened for editing. If the file does not exist an error message will be displayed.B、If the file exists it will be opened for editing. If the file does not exist a new file with the name file.out will be created and opened for editing.C、If the file exists an error message will be displayed. If the file does not exist a new file with the name file.out will be created and opened for editing.D、If the file exists the operator will be asked whether to open the file or overwrite the file. If the file does not exist a new file with the name file.out will be created and opened for editing.
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Which gets the name of the parent directory file “file.txt”？（）A、 String name= File.getParentName（“file.txt”）；B、 String name= （new File（“file.txt”））.getParent（）；C、 String name = （new File（“file.txt”））.getParentName（）；D、 String name= （new File（“file.txt”））.getParentFile（）；E、 Directory dir=（new File （“file.txt”））.getParentDir（）； String name= dir.getName（）；
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The file “file.txt” exists on the file system and contsins ASCII text. Given： try { File f = new File（“file.txt”）； OutputStream out = new FileOutputStream（f， true）； } catch （IOException） {} What is the result？（）A、 The code does not compile.B、 The code runs and no change is made to the file.C、 The code runs and sets the length of the file to 0.D、 An exception is thrown because the file is not closed.E、 The code runs and deletes the file from the file system.
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单选题You backed up the control file to trace. Which statement is true about the trace file generated？（）A
The trace file is in binary format.B
The trace file has a SQL script to re-create the control file.C
The trace file is a backup set created during the backup of the control file. D
The trace file contains the instructions to manually re-create the control file.E
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单选题UNIX系统命令cat file1file2功能是（）。A
将文件file2的内容添加到文件file1的末尾B
将文件file1的内容添加到文件file2的末尾C
连接文件file1和file2D
显示文件file1和file2
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单选题The file “file.txt” exists on the file system and contsins ASCII text. Given： try { File f = new File（“file.txt”）； OutputStream out = new FileOutputStream（f， true）； } catch （IOException） {} What is the result？（）A
The code does not compile.B
The code runs and no change is made to the file.C
The code runs and sets the length of the file to 0.D
An exception is thrown because the file is not closed.E
The code runs and deletes the file from the file system.
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单选题Which gets the name of the parent directory file “file.txt”？（）A
String name= File.getParentName（“file.txt”）；B
String name= （new File（“file.txt”））.getParent（）；C
String name = （new File（“file.txt”））.getParentName（）；D
String name= （new File（“file.txt”））.getParentFile（）；E
Directory dir=（new File （“file.txt”））.getParentDir（）； String name= dir.getName（）；
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单选题欲把当前目录下的 file1.txt 复制为 file2.txt，正确的命令是（）。A
copy file1.txt file2.txtB
cp file1.txt fle2.txtC
cat file2.txt file1.txtD
cat file1.txt〉 file2.txt
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多选题Which two create an InputStream and open file the “file.txt” for reading？ （）AInputStream in=new FileReader（“file.txt”）；BInputStream in=new FileInputStream（“file.txt”）；CInputStream in=new InputStreamFileReader （“file.txt”， “read”）；DFileInputStream in=new FileReader（new File（“file.txt”））；EFileInputStream in=new FileInputStream（new File（“file.txt”））；
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单选题What is the name of the file that is used to provide the configuration setting in unattended mode？（）A
Answer file.B
Startup file.C
Unattended configuration file.D
Network file.
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单选题Which of the following will occur if an operator types the command vi file.out?（）A
If the file exists it will be opened for editing. If the file does not exist an error message will be displayed.B
If the file exists it will be opened for editing. If the file does not exist a new file with the name file.out will be created and opened for editing.C
If the file exists an error message will be displayed. If the file does not exist a new file with the name file.out will be created and opened for editing.D
If the file exists the operator will be asked whether to open the file or overwrite the file. If the file does not exist a new file with the name file.out will be created and opened for editing.
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单选题The character mode sales report is stored on the network drive as a .REX. You need to make changes to the report layout. Using the report builder how would you change this file?（）A
Open the file using the menu option file-open make the changes and recompile the report. B
Convert the file into .REP file using the report compiler make the changes and convert the file back to a .REX file. C
Execute the R30CONV command to convert the file to a .RDF file, make the changes and convert the file back to a .REX file. D
Choose file - administration-compile. Convert the file to a .REP file, make the changes and convert the file back to a .REX file. E
Execute the R30CONV command to convert the file to a .REP file, make the changes and convert the file back to a .REX file.
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单选题Which file characteristic cannot be used in the Cisco IronPort Data Security policies？（）A
file typeB
file sizeC
file ageD
file name
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判断题命令cat file1 file2 file3把file1和file2组合成file3。A
对B
错
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