Given a method that must ensure that its parameter is not null： https://assets.asklib.com/images/image2/2018080115050428991.jpg What， inserted at line 12， is the appropriate way to handle a null value？（）

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  A . The class implements java.lang.Comparable. B . The class implements java.util.Comparator. C . The interface used to implement sorting allows this class to define only one sort sequence. D . The interface used to implement sorting allows this class to define many different sort sequences.

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• Which will declare a method that forces a subclass to implement it？（） 

  A .  Public double methoda（）； B .  Static void methoda （double d1） {} C .  Public native double methoda（）； D .  Abstract public void methoda（）； E .  Protected void methoda （double d1）{}

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• A JSP page needs to set the property of a given JavaBean to a value that is calculated with the JSP page. Which three jsp：setProperty attributes must be used to perform this initialization？（）

  A . Id B . Val C . Name D . Param E . Value F . Property

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• Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）

  A . user-managed backups. B . partial database backups. C . consistent database backups. D . inconsistent database backups.

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• Your network contains a DNS server named DNS1 that runs Windows Server 2008 R2.You need to be notified by e-mail if the DNS service logs errors or warnings. The solution must minimize the number of e-mail notifications you receive. What should you do？（）

  A . Create an alert in Performance Monitor. B . Run the Configure a DNS Server Wizard. C . Select the DNS Server log from Event Viewer and attach a task to the log. D . Create a custom view from Event Viewer and attach a task to the custom view.

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• Which method must be defined by a class implementing the java.lang.Runnable interface？ （） 

  A .  void run（） B .  public void run（） C .  public void start（） D .  void run（int priority） E .  public void run（int priority） F .  public void start（int priority）

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• Given a method that must ensure that its parameter is not null： https://assets.asklib.com/images/image2/2018080116145077624.png What， inserted at line 12， is the appropriate way to handle a null value？（）

  A . assert value == null； B . assert value != null， "value is null"； C . if （value == null） { throw new AssertionException（"value is null"）； } D . if （value == null） { throw new IllegalArgumentException（"value is null"）； }

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• You need to design a method to modify the current e-mail ordering system. Which will be used until Fourth Coffee deploys the Web-based ordering application. Your solution must address business concerns and improve security. What should you do？（）

  A . Configure the mail server to disallow SMTP relaying B . Instruct customers to obtain digital certificates from a trusted commercial authority （CA）， and digitally sign all order e-mail messages. Reject unsigned order e-mail messages C . Provide customers with a public encryption key， and instruct them to encrypt all order e-mail messages. Reject unencrypted e-mail messages D . Implement an e-mail filtering solution， and add customer e-mail addresses to the list of allowed addresses. Reject e-mail messages from other addresse

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• Which will declare a method that forces a subclass to implement it？ （） 

  A .  Public double methoda（）； B .  Static void methoda （double d1） {} C .  Public native double methoda（）； D .  Abstract public void methoda（）； E .  Protected void methoda （double d1）{}

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• If you must land on a beach with an oar-propelled lifeboat through a heavy surf，the recommended method is to（）.

  A . keep the bow directly in toward the beach，and tow the sea anchor off the stern B . ride in on the back of a large breaker C . keep the bow into the seas with the sea anchor out over the bow，and row to meet the breaking waves D . head directly into the beach by staying between the crests of the wave

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• Given：  1. public class Method Over {  2. public void set Var （int a， int b， float c） {  3. }  4. }   Which two overload the set Var method（）？

  A .  private void set Var（int a， float c， int b） {} B .  protected void set Var（int a， int b， float c） {} C .  public int set Var（int a， float c， int b） {return a：} D .  public int set Var（int a， int b， float c） {return a：} E .  protected float set Var（int a， int b， float c） {return c：}

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• Assuming that the serializeBanana（） and the deserializeBanana（） methods will correctly use Javaserialization and given： https://assets.asklib.com/images/image2/201808011022083040.png What is the result？（）

  A . restore 400 B . restore 403 C . restore 453 D . Compilation fails. E . An exception is thrown at runtime.

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• Given a class whose instances， when found in a collection of objects， are sorted by using the compareTo（） method， which two statements are true？（）

  A . The class implements java.lang.Comparable. B . The class implements java.util.Comparator. C . The interface used to implement sorting allows this class to define only one sort sequence. D . The interface used to implement sorting allows this class to define many different sort sequences.

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• You are creating an assembly named Assembly1.Assembly1 contains a public method. The global cache contains a second assembly named Assembly2.You must ensure that the public method is only called from Assembly2.Which permission class should you use？（）

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• You need to design a method to ensure that only scripts that are approved by the IT department can run on company computers. Your solution must meet business requirements. What should you do？（）

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  A .https://assets.asklib.com/images/image2/201807271520576841.jpg B .https://assets.asklib.com/images/image2/2018072715210345244.jpg C .https://assets.asklib.com/images/image2/2018072715210662717.jpg D .https://assets.asklib.com/images/image2/2018072715210992038.jpg

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• Given a class whose instances， when found in a collection of objects， are sorted by using the compare To method， which two statements are true？（）

  A . The class implements java.lang.Comparable. B . The class implements java.util.Comparator. C . The interface used to implement sorting allows this class to define only one sort sequence. D . The interface used to implement sorting allows this class to define many different sort sequences.

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• Assuming that the serializeBanana() and the deserializeBanana() methods will correctly use Java serialization and given： https://assets.asklib.com/images/image2/2018080115162693135.jpg What is the result？（）

  A . restore 400 B . restore 403 C . restore 453 D . Compilation fails. E . An exception is thrown at runtime.

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• A System p adminstrator must recover user information from a system that will not successfully boot. Which of the following install methods will accomplish this （）

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• Customers must have access to the Internet and a valid method of payment in order to complete a transaction.

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• Your network contains a DNS server named DNS1 that runs Windows Server 2008 R2.You need to be notified by e-mail if the DNS service logs errors or warnings. The solution must minimize the number of e-mail notifications you receive.What should you do？（）

  A. Create an alert in Performance Monitor. B. Run the Configure a DNS Server Wizard. C. Select the DNS Server log from Event Viewer and attach a task to the log. D. Create a custom view from Event Viewer and attach a task to the custom view.

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• It can be inferred from the passage that if the S waves from an earthquake arrive at a given location long after the P waves, which of the following must be true？

  A．The earthquake was a deep event B．The earthquake was a shallow event C．The earthquake focus was distant D．The earthquake had a low peak intensity. 此题为多项选择题。

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• We can know from the information given in the passage that the moon must be about________

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• Question 13 Which of the following statements is correct regarding the financial statement adjustments that an analyst must make regarding firms that choose different accounting methods but are subject to the same standards, and firms with different accounting methods due to differences in applicable accounting standards, respectively？ Same accounting standards Different accounting standards

  A.Adjustments required No adjustments required B.Adjustments required Adjustments required C.No adjustments required Adjustments required D.No adjustments required No adjustments required

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