Which modifiers and return types would be valid in the declaration of a working main（） method for a Java standalone application？（）  

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  A . On startup， SMON coordinates instance recovery. B . On startup， CKPT coordinates instance recovery. C . On startup， use RMAN to perform instance recovery. D . Uncommitted changes will be rolled back after the database is opened. E . On startup， perform media recovery and then instance recovery. F . On startup， all the files will be synchronized and you get both committed and uncommitted data.

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  A .  ${func（1）} B .  ${foo：func（4）} C .  ${func：foo（2）} D .  ${foo（5）：func} E .  ${func：foo（“easy”）} F .  ${func：foo（“3”）.name}

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• Given an EL function foo， in namespace func， that requires a long as a parameter and returns a Map，which two are valid invocations of function foo？（）

  A . ${func（1）} B . ${foo：func（4）} C . ${func：foo（2）} D . ${foo（5）：func} E . ${func：foo（"easy"）} F . ${func：foo（"3"）.name}

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• Which of the following SQL statements will return the year and average salary for all employees hired within a given year that have a salary greater than $30,000?（）

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• Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL> SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）

  A . User process B . Server process C . System Monitor (SMON) D . Process Monitor (PMON) E . Checkpoint process (CKPT)

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• Assuming that string1 = “hello” and string2 = “hello world”, Which of the following returns 0?

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• Which of the following are true concerning the distinction between interest rates and return?

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• An investor is considering two investments. Stock A has a mean annual return of 16 percent and a standard deviation of 14 percent. Stock B has a mean annual return of 20 percent and a standard deviation of 30 percent. Calculate the coefficient of variation (CV) of each stock. Which of the following statements is TRUE？

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