Download Java EE 7 Application Developer.1z0-900.ExamLabs.2020-05-12.78q.tqb
| Vendor: | Oracle |
| Exam Code: | 1z0-900 |
| Exam Name: | Java EE 7 Application Developer |
| Date: | May 12, 2020 |
| File Size: | 535 KB |
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Demo Questions
Question 1
Which two capabilities are provided by the Java Authentication and Authorization Services (JAAS) API? (Choose two.)
- protecting data from unauthorized viewing by using encryption
- verifying that a user is allowed to perform an action
- ensuring that data is not modified in transit
- verifying identity claims from users
Correct answer: BD
Question 2
What is true about Message-Driven Beans (MDBs)?
- MDBs can participate in transactions.
- MDBs are invoked synchronously.
- Each MDBs can process messages only from a single client.
- MDBs retain data caches between client calls.
Correct answer: A
Explanation:
Reference: https://docs.oracle.com/javaee/7/tutorial/ejb-intro003.htm Reference: https://docs.oracle.com/javaee/7/tutorial/ejb-intro003.htm
Question 3
Given the code fragment:
Which method should be used on line 3 to enable default validation mechanism?
- u.setProperty(String, Object)
- u.setProperty(Schema)
- u.setEventHandler(ValidationEventHandler)
- u.setAdapter(XmlAdapter)
Correct answer: D
Explanation:
Reference: https://docs.oracle.com/javaee/6/api/javax/xml/bind/Unmarshaller.html Reference: https://docs.oracle.com/javaee/6/api/javax/xml/bind/Unmarshaller.html
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