Given the command line java Pass2 and： https://assets.asklib.com/images/image2/2018080115563739172.jpg What is the result？ （）

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  A . System.load（"prop.custom"）； B . System.getenv（"prop.custom"）； C . System.property（"prop.custom）； D . System.getProperty（"prop.custom"）； E . System.getProperties（）.getProperty（"prop.custom"）；

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• An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?（）

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• Given： https://assets.asklib.com/images/image2/2018080113395014348.png Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）

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• Given the following directory structure： https://assets.asklib.com/images/image2/2018080111495059911.jpg And the following command line invocation： javac –d classes source/Utils.java Assume the current directory is bigProject， what it the result？（）

  A . If the compile is successful， Utils.class is added to the source directory. B . The compiler returns an invalid flag error. C . If the compile is successful， Utils.class is added to the classes directory. D . If the compile is successful， Utils.class is added to the bigProject directory.

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• Which of the following will permit an operator to retrieve console log output from the command line?（）

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• Which of the following commands should be used to show the percentage of time that any given disk was busy？（）

  A .  ps B .  tprof C .  iostat D .  vmstat

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• Which command will purge the errorlog of all recorded occurrences of a given SRN？（）  

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• An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?（）

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• Given： https://assets.asklib.com/images/image2/2018080111065714289.png and two separate command line invocations： java Yippee java Yippee 1 2 3 4 What is the result？（）

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• Given: https://assets.asklib.com/images/image2/2018080209063212875.jpg When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（）

  A . Line 5 B . Line 6 C . Line 7 D . Line 8 E . Line 9 F . Line 10

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• What does the Character Set Scanner command line utility do？（）

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• Given： https://assets.asklib.com/images/image2/2018080116255926837.png When the doSomething method is called， after which line does the Object created in line 5 become available for garbage collection？（）

  A . Line 5 B . Line 6 C . Line 7 D . Line 8 E . Line 9

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• Which command will purge the errorlog of all recorded occurrences of a given SRN?（）

  A . errclear 0 B . errpt -r -j <SRN> C . errclear -j <SRN> D . errclear -k <SRN&gt

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• Given the command line java Pass2 and： public class Pass2{ public void main（String[]args）{ int x=6； Pass2 p=new Pass2（）； p.doStuff（x）； System.out.print（"mainx="+x）； } void doStuff（intx）{ System.out.print（"doStuffx="+x++）； } } What is the result？（）

  A . Compilation fails. B . An exception is thrown at runtime. C . doStuffx=6 main x=6 D . doStuffx=6 mainx =7 E . doStuffx=7 mainx =6 F . doStuffx=7 mainx =7

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• Given： https://assets.asklib.com/images/image2/2018080116154469204.png Which command-line invocations will compile？（）

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• What command visualizes the general NetFlow data on the command line?（）

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• Given the following directory structure: bigProject --source --Utils.java --classes -- And the following command line invocation: javac -d classes source/Utils.java Assume the current directory is bigProject,what is the result? （）

  A . If the compile is successful, Utils.class is added to the source directory. B . The compiler returns an invalid flag error. C . If the compile is successful, Utils.class is added to the classes directory. D . If the compile is successful, Utils.class is added to the bigProject directory.

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• Given the following directory structure： bigProject --source --Utils.java --classes -- And the following command line invocation： javac -d classes source/Utils.java Assume the current directory is bigProject，what is the result？（）

  A . If the compile is successful， Utils.class is added to the source directory. B . The compiler returns an invalid flag error. C . If the compile is successful， Utils.class is added to the classes directory. D . If the compile is successful， Utils.class is added to the bigProject directory.

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• Given the following code: 1)clss Person { 2) public void printVlue（） ; 11)} 12)} Which method will the sttement on line 10 cll on line 2 B．on line 3 C．on line 6 D．on line 7

  A．on line 2 B．on line 3 C．on line 6 D．on line 7

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• Given:What is the result when the programmer attempts to compile the code and run it with the command java Converter 12？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/047d6bd4894fe3060c1d5c6a923e9029.jpg' /> A. It is true that j==i. B. It is false that j==i. C. An exception is thrown at runtime. D. Compilation fails because of an error in line 13.

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