1z0-900 Oracle Java EE 7 Application Developer Free Practice Exam Questions (2025 Updated)
Prepare effectively for your Oracle 1z0-900 Java EE 7 Application Developer certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
Your customer is setting up serial control. The requirement is that if item A has serial 123, then they don’t want item B to also have serial 123 within the same inventory organization.
Which serial control setting must be used to meet this requirement?
Which statement is true about Java methods that are exposed as Web Service operations by using JAX-WS API?
: 27
Given:
Which client-side Java method will send the employee object to the WebSocket Server Endpoint?
Which two features are provided by the JSTL Core library for a JSP? (Choose two.)
Give the code fragment:
And the code fragment:
The sendConfirmation() and reserve() methods should be executed in the same transactional context.
Which transaction attributes do you ensure this?
Given:
What will be the response to a HEAD request?
Identify three statements that are true about reservations in back-to-back processing.
Given an HttpServletRequest request and an EJB SessionContext ctx.
Which is a valid way to retrieve the Principal invoking either behavior?
You are in the process of analyzing the demand and supply schedules for the item based on high level reservations.
You are working with JMS publish-subscribe operations.
What happens when a producer publishes a message to a topic for which a durable subscription exists but there are no subscribers available?
Given:
You are creating an Alarm management system. When you create a new alarm, you want it to create an alert that is triggered once at the specified time.
Which method should you call on Line 9 to create the timer?
Given the code fragment from a Facelet page:
On Line 1, you ae asked to insert a search box that displays the text “Search Here” via a placeholder.
Assume searchMB is a valid Managed Bean.
Which two options enable you to create a search box with a placeholder attribute on Line 1? (Choose two.)
Which three types of jurisdictions should be considered while designing the Enterprise Structure?
Given the following class definition with numbered lines:
How do you specify to use this mock CDI bean implementation instead of the regular implementation class?
A third-party service equipment is used for various purposes in a manufacturing facility and needs to be overhauled once a year. This equipment is charged based on its consumption without a project dependency.
At this point, it should be transferred out of the vendor’s warehouse for maintenance and then returned back in the future depending upon the requirement.
The material stock transfer should happen with an offline approval and with an account alias as a logical reference.
What is the ideal way to handle this process?
Given the code sample:
And:
And:
And the next fragment from beans.xml:
And this injection point:
@Inject GenericMessenger messageHandler;
Which type would be injected at run time and referenced by the messageHandler variable?
Identify two valid WebSocket message types for which you can register handlers. (Choose two.)
Your client wants the purchasers to be able to run the min-max for items under their control and then manage the POs created out of these.
Which parameters can they use to be able to do this?
Which three applications originate a buy request that is received by supply chain orchestration?
Given the code fragments:
Which action completes this composite primary key implementation?
