Which the two are reserved words in Java？（）

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• Which two statements are reserved words in Java？ （）

  A .  Run B .  Import C .  Default D .  Implement

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• Which two statements about the DiffServ  model are true？（）

  A . a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address B . a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs） C . DiffServ uses the DiffServ field in the MAC header to mark frames into behavior D . the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field E . the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value F . the primary goal of DiffServ is scalability

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• Which two are the prerequisites to enable Flashback Data Archive?（） (Choose two.)

  A . Database must be running in archivelog mode. B . Automatic undo management must be enabled. C . Undo retention guarantee must be enabled. D . The tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management (ASSM).

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• Which the two about WAR files are true？（）

  A .  WAR files must be located in the web application library directory. B .  WAR files must contain the web application deployment descriptor. C .  WAR files must be created by using archive tools to designed specifically for that purpose.  D .  The web container must serve the content of any META-INF directory located in a WAR file. E .  The web container must allow access to resources in JARs in the web application library directory

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• Which two are characteristics of the Intercepting Filter pattern？（）

  A .  it provides centralized request handling for incoming requests. B .  It forces resource authentication to be distributed across web components. C .  It reduces coupling between presentation-tier clients and underlying business services. D .  It can be added and removed unobtrusively， without requiring changes to existing  code. E .  It allows preprocessing and postprocessing on the incoming requests and outgoing  responses.

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• Which two statements are true about the hashCode method？（）

  A . The hashCode method for a given class can be used to test for object equality and object inequality for that class. B . The hashCode method is used by the java.util.SortedSet collection class to order the elements within that set. C . The hashCode method for a given class can be used to test for object inequality， but NOT objecte quality， for that class. D . The only important characteristic of the values returned by a hashCode method is that the distribution of values must follow a Gaussian distribution. E . The hashCode method is used by the java.util.HashSet collection class to group the elements within that set into hash buckets for swift retrieval.

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• Which two multicast address ranges are assigned as source-specific multicast destination addresses and are reserved for use by source-specific applications and protocols？（）

  A . 232.0.0.0/8 B . 239.0.0.0/8 C . 232.0.0.0/4 D . FF3x：：/32 E . FF2x：：/32 F . FF3x：：/16

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• Which two capabilities are granted with the SUPER privilege?（）

  A . Allowing a client to kill other client connections B . Allowing a client to shut down the server C . Allowing change of the server runtime configuration D . Allowing client accounts to take over the account of another user

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• Which two statements about the configuration of the switch interface are correct (Choose two)（）。

  A . The switchport belongs only to VLAN 2 B . Interface fa0/0 will be in both VLAN 1 (by default) and VLAN 2 C . The exhibit shows interface fa0/0 to be dynamically mapped to VLAN 2 D . A network host can be connected to this interface

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• Which are the two options to which a menu can be assigned?（） (Choose two.)

  A . menu B . functions C . data group D . responsibility E . functional grou

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• Which two are characteristics of the Front Controller pattern？（）

  A . It simplifies remote interfaces to distributed objects. B . It promotes cleaner application partitioning and encourages reuse. C . It provides an initial point of contact for handling all related requests. D . It reduces maintainability due to the increased complexity of the design. E . It provides loosely coupled handlers that can be combined in various permutations.

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• Which ones are the two type of ciphers？（）

  A .  Blocking cipher andnon-blocking cipher B .  CBC cipher and EBC cipher C .  Block cipher and Stream cipher D .  Blocker cipher and Streamer cipher E .  3DES cipher and AES cipher

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• Which the following two statements are true？（）

  A .  An inner class may be declared as static. B .  An anonymous inner class can be declared as public. C .  An anonymous inner class can be declared as private. D .  An anonymous inner class can extend an abstract class. E .  An anonymous inner class can be declared as protected.

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• Which two statements about the DiffServ model are true？ （）

  A .  A class can be identified as a single application， multiple applications with similar service needs， or be based on the source or destination IP addresses. B .  A drawback of the DiffServ model is that it does not provide backward compatibility with devices that can only use the ToS field. C .  DiffServ uses the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）.  D .  The DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field. E .  The first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value. F .  The primary goal of DiffServ is scalability.

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• Which two multicast address ranges are assigned as source-specific multicast destination addresses andare reserved for use by source-specific applications and protocols？ （）

  A . 232.0.0.0/8 B . 239.0.0.0/8 C . 232.0.0.0/4 D . FF3x：：/32 E . FF2x：：/32 F . FF3x：：/16

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• Which two statements are reserved words in Java？（）         

  A .  Run B .  Import C .  Default D .  Implement

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• Which the two are valid and equivalent？（）

  A .https://assets.asklib.com/images/image2/2018073115112695987.jpg B .https://assets.asklib.com/images/image2/2018073115114664903.jpg C .https://assets.asklib.com/images/image2/2018073115123688801.jpg D .https://assets.asklib.com/images/image2/2018073115124427624.jpg E .https://assets.asklib.com/images/image2/2018073115125392737.jpg

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• Which two are reserved words in the Java programming language？（）  

  A .  run B .  import C .  default D .  implement

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• Which the two choices are equivalent？（）

  A .  3 / 2 B .  3 < 2 C .  3 * 4 D .  3 << 2 E .  3 * 22 F .  3 <<<2

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• Which two libraries are the top 2 libraries in the world?

  A、National Library of Canada B、British Library C、Library of Congress D、Library of Russian Academy of Science

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• Which of the two states are the last two states to join the union?

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• Which are the two key concepts for effectiveness?

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• There are no two leaves which are the same in the world

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