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Which of the following below are valid isolation levels in J2EE

  • TRANSACTION_READ_UNCOMMITTED
  • TRANSACTION_SERIALIZABLE
  • Only A
  • Both A and B

Answer: Option D

Similar Questions :

1. Program which executes applet is known as

  • applet engine
  • virtual machine
  • JVM
  • None of above

Answer: Option A

2. Object which can store group of other objects is called

  • Collection object
  • Java object
  • Package
  • Wrapper

Answer: Option A

3. Which of the following statements about arrays is syntactically wrong

  • arrayName[] p = new arrayName[5];
  • arrayName p[5];
  • arrayName[] p [];
  • arrayName p[][] = new arrayName[2][];

Answer: Option B

4. There is no default transaction attribute for an EJB

  • False
  • True

Answer: Option B

5. Which method is used to perform DML statements in

JDBC

  • execute()
  • executeUpdate()
  • executeQuery()
  • None of above

Answer: Option B

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