单选题A booting system appears to be hanging with an LED code of 0c54. What is the likely cause？（）A An AIX install is in progress.B The rootvg volume group is corrupt.C The TCPIP configuration is incorrect.D At least one paging device cannot be varied on.

第1题：

Given the following code：     if （x>0） {  System.out.println（"first"）；  }     else if （x>-3） {  System.out.println（"second"）；  }     else {  System.out.println（"third"）；  }  Which range of x value would print the string "second"？（）    

• A、 x > 0
• B、 x > -3
• C、 x <= -3
• D、 x <= 0 & x > -3

第2题：

During system boot, rootvg fails to vary on, causing an LED code of 0552. What is the most likely cause for rootvg not varying on?（）

• A、Missing blv
• B、Network problem
• C、Wrong boot table
• D、Corrupted file system

第3题：

A booting system appears to be hanging with an LED code of 0c54. What is the likely cause？（）

• A、An AIX install is in progress.
• B、The rootvg volume group is corrupt.
• C、The TCPIP configuration is incorrect.
• D、At least one paging device cannot be varied on.

第4题：

A system dump has occured. The LED display shows 0c0. What does this indicate？（）

• A、The dump was successful.
• B、A system dump is in progress.
• C、No system dump device configured.
• D、There was an I/O error during the dump.

第5题：

An administrator is installing AIX 6.1 on a new LPAR and the boot sequence has stalled with reference code 0c31. What is the most likely cause?（）

• A、The system is waiting for user input to define console type lft0.
• B、The system is waiting for user input to define console type tty0.
• C、The system is waiting for user input to define console type vty0.
• D、The system is waiting for user input to define console type vsa0.

第6题：

public class TestOne implements Runnable {  public static void main （String[] args） throws Exception {  Thread t = new Thread（new TestOne（））；  t.start（）；  System.out.print（”Started”）；  t.join（）；  System.out.print（”Complete”）；  }  public void run（） {  for （int i= 0； i< 4； i++） {   System.out.print（i）；  }  }  }  What can be a result？（）

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes and prints “StartedComplete”.
• D、 The code executes and prints “StartedComplete0123”.
• E、 The code executes and prints “Started0l23Complete”.

第7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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第13题：

public class Foo {  public void main（ String[] args ） {  System.out.println（ “Hello” + args[0] ）；  }  }   What is the result if this code is executed with the command line？（）

• A、 Hello
• B、 Hello Foo
• C、 Hello world
• D、 Compilation fails.
• E、 The code does not run.

第14题：

Which command should the administrator use to display the IPL progress/LED code of the partition?（）

• A、lsled -m System -r lpar 
• B、lsrefcode -m System -r lpar 
• C、lshwinfo -m System -r led_code 
• D、lssyscfg -m System -r sys -F lpar_name,led_code

第15题：

During system boot， the system hangs at LED 0C31. What is the first step the system administrator should take to correct the problem？（）

• A、Check system console connections
• B、Check system network connections
• C、Boot in service mode and change the bootlist
• D、Boot from the AIX installation media and mount rootvg filesystems

第16题：

What is the likely cause of a system hanging at boot code 557?（）

• A、The system is configuring network adapters.
• B、The system is configuring fibre channel devices.
• C、The system is unable to mount the rootvg filesystems.
• D、The system is unable to access the installation media.

第17题：

A system was rebooted and is taking a long time toreturn. The administrator has logged into the HMC and sees reference code 0c9. What does this mean?（）

• A、The system is configuring a device.
• B、A system initiated dump has started.
• C、The system is varyingon a volume group.
• D、The system is running an inbuilt self test.

第18题：

Which code fragments will succeed in printing the last argument given on the command line to the standard output， and exit gracefully with no output if no arguments are given？（）   CODE FRAGMENT a：   public static void main（String args[]） {   if （args.length != 0）   System.out.println（args[args.length-1]）；   }   CODE FRAGMENT b：   public static void main（String args[]） {   try { System.out.println（args[args.length]）； }   catch （ArrayIndexOutOfBoundsException e） {}   }   CODE FRAGMENT c：   public static void main（String args[]） {   int ix = args.length；   String last = args[ix]；   if （ix != 0） System.out.println（last）；   }   CODE FRAGMENT d：   public static void main（String args[]） {   int ix = args.length-1；   if （ix > 0） System.out.println（args[ix]）；   }   CODE FRAGMENT e：   public static void main（String args[]） {   try { System.out.println（args[args.length-1]）；  }catch （NullPointerException e） {}   }  

• A、Code fragment a.
• B、Code fragment b.
• C、Code fragment c.
• D、Code fragment d.
• E、Code fragment e.

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