单选题An operator is editing a file using vi. Which of the following subcommand sequences will copy the current line plus the next 2 lines to the end of the file?（）A yy E 3pB 3yy G pC 3yy :e 5ppD yy :g 3p

第1题：

第2题：

You have discovered that one of three control files has been lost. What steps would you follow to recover that control file？（）   a. Shut down the database.  b. Restore a control-file copy from backup media.  c. Use the create control file command to create a new control file.  d. Copy the backup control file into place.  e. Create a new copy of the control file from one of the surviving control files.  f. Recover the database using the recover database using backup control file command.  g. Start up the database. 

• A、a， b， f， g
• B、c， f， g
• C、a， d， f， g
• D、a， f， g
• E、a， e， g

第3题：

第4题：

Operator needs to remove all leading comments # from shell.script file. Which of the following vi sub-command can achieve this?（）

• A、:r/^#//g
• B、:1,$ s/^#//g
• C、:sed s/^#//g
• D、:sub s/^#//g

第5题：

An operator is editing a file using a keyboard without arrow keys. What key can be used to move the cursor one character to the right?（）

• A、n
• B、j
• C、k
• D、l

第6题：

满足方程3yy′＝1，y|x=0＝0的解是（　　）。

答案：C

解析：

原方程可整理得

第7题：

Which of the following components is MOST important when building a Gaming PC?（）

• A、File sharing
• B、TV tuner
• C、Media streaming
• D、High-end video card

第8题：

第9题：

An operator is editing a file using vi. Which of the following subcommand sequences will copy the current line plus the next 2 lines to the end of the file?（）

• A、yy E 3p
• B、3yy G p
• C、3yy :e 5pp
• D、yy :g 3p

第10题：

A customer has downloaded new firmware files for the IBM support Web Site. Which of the following is the correct method for updating the firmware for the QLogic Intelligent Passthru Module using the command line?（）

• A、Transfer the file to the FC module using FTP； use Telnet to the FC module to start the update
• B、Use Telnet to the AMM to transfer the file using TFTP； start the update
• C、Transfer the file to the FC module using Secure Copy Protocol （SCP）；use Telnet to the FC module to start the update
• D、Start the update and enter FC module IP address when prompted