Free Oracle 1Z1-805 Exam Dumps Questions & Answers

The advantage of a CallableStatement over a PreparedStatement is that it:

• A.Uses Java instead of native SQL
• B.Is easier to construct
• C.Supports transactions
• D.Runs on the database

Which five items are provided by the Java concurrency utilities?

• A.Dynamic adjustment of thread priorities
• B.Atomic variables
• C.Concurrent collection sorting implementations
• D.Asynchronous execution of tasks
• E.Collection classes designed for concurrent access
• F.High-performance, flexible thread pools
• G.synchronized wrappers for collection classes in the java.util package,
• H.Counting semaphores

What is the minimum SQL standard that a JDBC API implementation must support?

• A.JDBC 4.0
• B.SQL-92
• C.SQL 99
• D.SQL-2003

Which two scenarios throw FileSystemNotFoundException when the paths.get(URI) method is invoked?

• A.When the file system identified by the uri does not exist and cannot be created automatically
• B.When the provider identified by the URI'S scheme component is not installed
• C.When preconditions on the uri parameter do not hold
• D.When the path string cannot be converted to a Path
• E.When a security manager is installed and it denies an unspecified permission to acess the file system.

How many Threads are created when passing tasks to an Executor Instance?

• A.A single Thread is used to execute all tasks.
• B.A number of Threads determined by system load is used to execute tasks.
• C.The method used to obtain the Executor determines how many Threads are used to execute tasks.
• D.A number of Threads equal to the number of CPUs is used to execute tasks.
• E.A new Thread is used for each task.
• F.A developer-defined number of Threads Is used to execute tasks.