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Oracle 1Z0-900 Exam Syllabus Topics:
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NEW QUESTION 21
Your organization is using min-max planning to replenish stock and the planning parameters are set at item organization level with a default subinventory.
Item: A, Min Qty: 25, Max Qty: 150 and Current Level: 20
The item above is purchased from a supplier. Although there is subinventory on hand, the subinventory is below the minimum required level. This should trigger a Min-Max report entry, but the requisition is not generated. Why?
- A. Min-Max planning can be performed at the Organization level.
- B. Rounding the Reorder Quantity is disabled.
- C. Item is not defined in Manage Item Subinventories.
- D. Fixed lot multiplier is not set.
- E. No value has been set for the "Min-Max Replenishment Reorder Approval" profile.
Answer: C
NEW QUESTION 22
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?
- A. The message publisher is immediately notified about the lack of subscribers and can decide for itself if, and when, to resend.
- B. The publisher sends the message. However, it is never consumed because there wasn't anything listening when it arrived, regardless of the message timeout length.
- C. The publisher waits for a subscriber, who then consumes it. However, the publisher will time out if no consumer arrives within the given timeout period.
- D. The publisher successfully sends a message, which will be consumed later, once there is a subscriber, assuming the message hasn't timed out.
Answer: D
Explanation:
Explanation
Reference
https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.multiplatform.doc/ae
NEW QUESTION 23
Given:
What will be the response to a HEADrequest?
- A. No method will be invoked and a 404 error will be returned.
- B. The findAll()method will be called and no employees will be returned.
- C. The findAll()method will be called and the employee list will be returned.
- D. No method will be invoked and no error will be returned.
Answer: D
NEW QUESTION 24
Your web application requires logic to remember items that a user placed into a shopping cart.
Which two mechanisms should you use to associate that information with the user? (Choose two.)
- A. HttpSession objects
- B. HttpServletResponse objects
- C. a database
- D. ServletContext objects
Answer: A,D
NEW QUESTION 25
Which type allows you to share servlet attributes across your entire web application?
- A. ServletRequest
- B. ServletContext
- C. HttpSession
- D. ServletConfig
Answer: B
Explanation:
Explanation/Reference: https://stackoverflow.com/questions/123657/how-can-i-share-a-variable-or-object-between-two-or- more-servlets
NEW QUESTION 26
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. Reorder the implementation names in the beans.xmlfile such that the desired alternative is listed earlier.
- B. Delete the regular implementation class from the WAR.
- C. Start up the server with the optional -alternativecommand-line option, specifying any alternative class names in a comma-separated list.
- D. Use the alternativeselement in the beans.xmlfile and specify the class name in the classelement within it.
Answer: C
NEW QUESTION 27
Given the code fragments:
What code should you add to the body of the updateEmployeemethod in order to save pending changes to the database?
entityManager.merge(emp);
- A. EntityManager.merge(emp);
entityManager.getTransaction().begin(); - B. entityManager.merge(emp);
entityManager.getTransaction().commit(); - C. Context. Ctx = new InitialContext();
- D. UserTransaction utx = (UserTransaction)ctx.lookup(''java:comp/
UserTransaction'');
utx.begin();
entityManager.merge(emp);
utx.commit();
entityManager.lock(emp);
Answer: D
NEW QUESTION 28
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?
- A. timerService.createIntervalTimer(alarmDate, -l, config);
- B. timerService.createCalendarTimer(alarmDate, config);
- C. timerService.createSingleActionTimer(alarmDate, config);
- D. timerService.createTimer(alarmDate, -l, config);
Answer: D
NEW QUESTION 29
Your customer is a very large organization spanning across multiple countries. Their legal requirements, Human Resource Policies, and Functional Currencies for Ledger are different for each country. Your customer wants to maintain 10 different companies in the system.
Which combination meets this requirement?
- A. 1 Enterprise, 10 Divisions, where each division has its own legal entity and ledger
- B. 1 Enterprise, 10 Divisions, where each division has its own ledger with common legal entity across all divisions
- C. 10 Enterprises, 1 Division, where each division has 10 legal entities and 1 ledger
- D. 10 Enterprises, 10 Divisions, where each division has its own legal entity and ledger
Answer: A
NEW QUESTION 30
A Persistence application locks entity xwith a LockModeType.PESSIMISTIC_READlock type. Which statement is true?
- A. This operation will result in a TransactionRolledbackExceptionif the lock cannot be obtained.
- B. LockModeType.PESSIMISTIC_READ is the synonym of LockModeType.READ
- C. This operation will force serialization among transactions attempting to read the entity data.
- D. If the application updates the entity later, and the changes are flushed to the database, the lock will be converted to an exclusive look.
Answer: C
Explanation:
Explanation/Reference: https://docs.oracle.com/javaee/7/api/javax/persistence/LockModeType.html
NEW QUESTION 31
Given the code fragment:
Which code can be added to register both of these methods to receive BankEvent notifications only if an instance of BankActivityService is already instantiated in the current context?
- A. @Observes(during=IN_PROGRESS) on line 1
- B. @Observes(notifyObserver=IF_EXISTS) on line 3 and line 6
- C. @Observes(notifyObserver=IF_EXISTS) on line 4 and line 7 before method parameter declaration
- D. @Observes(during=AFTER_COMPLETION) on line 1
Answer: B
Explanation:
Explanation
Reference https://docs.oracle.com/javaee/7/tutorial/cdi-adv005.htm
NEW QUESTION 32
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. 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); - B. entityManager.merge(emp);
- C. entityManager.getTransaction().begin();entityManager.merge(emp);entityManager.getTransaction().comm
Answer: A
NEW QUESTION 33
Material is transferred between the Subinventories within an organization via transfer order. The setup is complete and the transfer order is created though the FBDI process.
What is the primary interface data that needs to be completed in the template?
- A. INV_SERIAL_NUMBERS_INTERFACE
- B. INV_SUBINVENTORY_TRANSFER
- C. CST_I_INCOMING_TXN_COSTS
- D. INV_TRANSACTION_LOTS_INTERFACE
- E. INV_TRANSACTIONS_INTERFACE
Answer: E
NEW QUESTION 34
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. Reorder the implementation names in the beans.xml file such that the desired alternative is listed earlier.
- B. Delete the regular implementation class from the WAR.
- C. Use the alternatives element in the beans.xml file and specify the class name in the class element within it.
- D. Start up the server with the optional -alternative command-line option, specifying any alternative class names in a comma-separated list.
Answer: D
NEW QUESTION 35
Which annotation allows a request to be executed with another Principal's identity?
- A. @Runs
- B. @RolesAllowed
- C. @UseIdentity
- D. It is not possible to execute a request with another Principal's identity.
Answer: B
NEW QUESTION 36
Which statement is true about the WS-Security standard?
- A. It is a Java EE standard for protecting SOAP services.
- B. It provides message-level security.
- C. It defines protocol-specific ways of protecting SOAP messages.
- D. It relies on HTTP security mechanism to protect SOAP messages in transmit.
Answer: B
NEW QUESTION 37
How do you specify a default error page in your web.xml file?
- A. <error-page><location>/general-error.html</location></error-page>
- B. <on-error><location>/general-error.html<location></on-error>
- C. <on-error><error-code>*</error-code><location>/general-error.html</location></on-error>
- D. <error-page><error-code>*</error-code><location>/general-error.html</location></error-page>
Answer: D
Explanation:
Explanation
Reference
http://www.codejava.net/java-ee/servlet/how-to-handle-error-in-web-xml-for-java-web-applications
NEW QUESTION 38
Which statement is true about JAX-RS resource implementation?
- A. The REST resource class can be implemented as a stateful Enterprise JavaBean (EJB).
- B. The REST resource implementation class must extend the javax.ws.rs.core.Application class
- C. The REST resource class can be implemented as a Plain Old Java Object (POJO).
- D. The REST resource implementation class must not be final.
Answer: B
Explanation:
Explanation
Reference https://docs.oracle.com/javaee/7/tutorial/jaxrs002.htm
NEW QUESTION 39
Given the code fragment:
Assuming this bean is used only in the code fragment above, how long will the injected Beaninstance be available?
- A. for the lifetime of the Serviceobject
- B. for the lifetime of the request
- C. for the lifetime of the session
- D. for the lifetime of the enterprise application
Answer: A
NEW QUESTION 40
Which statement is true about the WS-Security standard?
- A. It is a Java EE standard for protecting SOAP services.
- B. It provides message-level security.
- C. It defines protocol-specific ways of protecting SOAP messages.
- D. It relies on HTTP security mechanism to protect SOAP messages in transmit.
Answer: B
Explanation:
Explanation
Reference https://docs.oracle.com/cd/E19226-01/820-7627/gjiou/index.html
NEW QUESTION 41
Which interface should you implement if you want to be alerted to the lifecycle events surrounding your task being executed by a ManagedExecutorService?
- A. the ManagedTaskListener interface
- B. the TaskEventListener interface
- C. the ManagedExecutorTask interface
- D. the Runnable Interface
Answer: A
Explanation:
Explanation
Reference
https://github.com/javaee/concurrency-ee-spec/blob/master/api/src/main/java/javax/enterprise/concurrent/Manag
NEW QUESTION 42
You want to allow one set of roles to POST to a resource and another set of roles to GET it.
Which two configuration options should you use? (Choose two.)
- A. two <web-resource-collection> with different <http-method>in the deployment descriptor
- B. a single @HttpMethodContstraintannotation and a map of method to roles
- C. a single <web-resource-collection>with two <auth-constraint> with different <http- method>in the deployment descriptor
- D. two separate @HttpMethodConstraintsannotations and sets of roles
Answer: B,C
NEW QUESTION 43
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?
- A. timerService.createIntervalTimer(alarmDate, -l, config);
- B. timerService.createCalendarTimer(alarmDate, config);
- C. timerService.createSingleActionTimer(alarmDate, config);
- D. timerService.createTimer(alarmDate, -l, config);
Answer: D
Explanation:
Explanation/Reference:
Reference: https://docs.oracle.com/javaee/6/api/javax/ejb/TimerService.html
NEW QUESTION 44
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