Online Access Free Oracle.1Z0-900.v2022-02-18.q102 Practice Test (Page 18)

1Z0-900 Exam Question 81

You need to develop a chat application, which allows the display of emoticons and images together with text messages.
How should you configure a WebSocket endpoints to receive both text and binary messages?

A.Create two @onMessage methods in the same endpoint with appropriate parameter types.

B.You can achieve this only by creating separate WebSocket endpoints for each message type.

C.Create two @onMessage methods, each with appropriate decoder attribute in the same endpoint.

D.Define the @onMessage methods in your endpoint with Object as parameter and check the actual type in your code.

1Z0-900 Exam Question 82

Which two features are provided by the JSTL Core library for a JSP? (Choose two.)

A.message localization

B.testing conditions

C.iteration over a collection

D.buffering of large result sets

1Z0-900 Exam Question 83

Given the code fragment:

How long does this cookie persist?

A.until server shutdown

B.until garbage collection in the servlet instance

C.this request

D.until browser shutdown

1Z0-900 Exam Question 84

Which statement is true about the WS-Security standard?

A.It is a Java EE standard for protecting SOAP services.

B.It relies on HTTP security mechanism to protect SOAP messages in transmit.

C.It provides message-level security.

D.It defines protocol-specific ways of protecting SOAP messages.

1Z0-900 Exam Question 85

Given the code fragments:

What code should you add to the body of the updateEmployee method in order to save pending changes to the database?

A.entityManager.getTransaction().begin();entityManager.merge(emp);entityManager.getTransaction().comm

B.entityManager.merge(emp);

C.Context. Ctx = new InitialContext();UserTransaction utx
(UserTransaction)ctx.lookup("java:comp/UserTransaction");utx.begin();entityManager.merge(emp);utx.co entityManager.lock(emp);EntityManager.merge(emp);

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1Z0-900 Exam Question 81

1Z0-900 Exam Question 82

1Z0-900 Exam Question 83

1Z0-900 Exam Question 84

1Z0-900 Exam Question 85

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