Interview question based on skill :
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Total Questions: 20
1. When serializing an object to a file, the standard convention in Java is to give the file a:
Correct Answer is : .ser
2. What will be the value of transient field after deserialization:-
Correct Answer is : All of the mentioned
3. If the class implements java.io.Serializable, then it is serializable; otherwise, it’s not.
Correct Answer is : TRUE
4. A transaction propagation behavior can be specified by the:-
Correct Answer is : propagation
5. Transaction propagation behavior are defined in the:-
Correct Answer is : org.springframework.transaction.TransactionDefinition
6. If there’s an existing transaction in progress, the current method should run within this transaction.
Correct Answer is : Required
7. The current method must start a new transaction and run within its own transaction.
Correct Answer is : REQUIRES NEW
8. If there’s an existing transaction in progress, the current method can run within this transaction.
Correct Answer is : SUPPORTS
9. The current method should not run within a transaction.
Correct Answer is : NOT SUPPORTED
10. The current method must run within a transaction.
Correct Answer is : MANDATORY
11. The current method should not run within a transaction. If there’s an existing transaction in progress, an exception will be thrown.
Correct Answer is : NEVER
12. If there’s an existing transaction in progress, the current method should run within the nested transaction.
Correct Answer is : NESTED
13. For two transactions T1 and T2, T1 reads a field that has been updated by T2 but not yet committed.
Correct Answer is : Dirty Read
14. For two transactions T1 and T2, T1 reads a field and then T2 updates the field.
Correct Answer is : Nonrepeatable read
15. For two transactions T1 and T2, T1 reads some rows from a table and then T2 inserts new rows into the table.
Correct Answer is : Phantom read
16. For two transactions T1 and T2, they both select a row for update, and based on the state of that row, make an update to it.
Correct Answer is : Lost Updates
17. Isolation Levels Supported by Spring:-
Correct Answer is : All of the mentioned
18. The exceptions that cause a transaction to roll back or not can be specified by attribute:-
Correct Answer is : rollback
19. A web service contract is described using :-
Correct Answer is : Web Services Description Language
20. There are two approaches to developing a web service, depending on whether you define the contract first or last.
Correct Answer is : TRUE
