Problems with Direct JDBC MCQ

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• Which DataSource is not stable in MultiThreaded Environment?
  ক

  DriverManagerDataSource

  খ

  SingleConnectionDataSource

  গ

  All of the mentioned

  ঘ

  None of the mentione
• SingleConnectionDataSource (a DriverManagerDataSource subclass). As its name indicates, this maintains only a single connection.
  ক

  True

  খ

  False
• Spring also provides several convenient but less powerful data source implementations.
  ক

  DriverManagerDataSource

  খ

  DriverManagerData

  গ

  DriverManagerDataAccess

  ঘ

  DriverManagerDataSourceAccess
• Data source implementations provided by different vendors and projects.
  ক

  C3PO

  খ

  Apache Commons DBCP

  গ

  All of the mentioned

  ঘ

  None of the mentioned
• Standard interface defined by the JDBC specification that factories Connection instances.
  ক

  javax.sql.DataAccess

  খ

  javax.sql.DataSource

  গ

  javax.sql.Data

  ঘ

  javax.sql.DataSourceAccess
• To access the database with JDBC:-
  ক

  DAO interface

  খ

  DAO Class

  গ

  DataAccess interface

  ঘ

  None of the mentioned
• The general purpose of the Data Access Object (DAO) pattern is to avoid these logic related problems by separating data access logic from business logic and presentation logic.
  ক

  True

  খ

  False
• JDBC Properties for Connecting to the Application Database.
  ক

  Driver Class

  খ

  URL

  গ

  Username

  ঘ

  All of the mentioned
• To start the Derby server in the client/server mode.
  ক

  startNetworkServer java file

  খ

  startNetworkServer script

  গ

  startNetwork script

  ঘ

  all of the mentioned
• For testing purposes, the client/server mode is more appropriate.
  ক

  True

  খ

  False
• Mode which Derby prefers to run in:-
  ক

  embedded

  খ

  client/server

  গ

  all of the mentioned

  ঘ

  none of the mentioned
• Database Engine which uses low memory consumption and easy configuration.
  ক

  SQL

  খ

  MySQL

  গ

  Apache Derby

  ঘ

  None of the mentioned
• An ORM framework persists your objects according to the mapping metadata you provide.
  ক

  True

  খ

  False
• ORM which isn’t supported by Spring:-
  ক

  Hibernate

  খ

  JDO

  গ

  TopLink

  ঘ

  All of the mentioned
• Spring supports most of the popular ORM (or data mapper) frameworks.
  ক

  Hibernate

  খ

  JDO

  গ

  JPA

  ঘ

  All of the mentioned