You have an SQL query that takes one minute to execute. You use the following code segment to execute the
SQL query asynchronously.
Dim ar As IAsyncResult = cmd.BeginExecuteReader()
You need to execute a method named DoWork() that takes one second to run while the SQL query is executing.
DoWork() must run as many times as possible while the SQL query is executing.
Which code segment should you use?（）
You have recently completed the creation of a new application.
Certkiller .com requires you to ensure that this new application creates a file that contains an array of bytes.
What should you do?（）
You have an SQL query that takes one minute to execute. You use the following code segment to execute the
SQL query asynchronously.
Dim ar As IAsyncResult = cmd.BeginExecuteReader()
You need to execute a method named DoWork() that takes one second to run while the SQL query is executing.
DoWork() must run as many times as possible while the SQL query is executing.
Which code segment should you use?（）
You can have eggs or hard-boiled.
Immediately after adding a new disk to or removing an existing disk from an ASM instance, you find that the performance of the database goes down initially until the time the addition or removal process is completed, and then gradually becomes normal.
Which two activities would you perform to maintain a consistent performance of the database while adding or removing disks?（）
You have an existing Windows Communication Foundation (WCF) service that exposes a service contract over HTTP.
You need to expose that contract over HTTP and TCP. What should you do?（）
-That’s a beautiful dress you have on!
-（）
Click the Exhibit button and examine the data in the EMPLOYEES and DEPARTMENTS tables.
You want to retrieve all employees, whether or not they have matching departments in the departments table. Which query would you use?（）
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