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Oracle Updated 1z0-497 Exam Questions and Answers by leonidas

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Oracle 1z0-497 Exam Overview :

Exam Name: Oracle Database 12c Essentials
Exam Code: 1z0-497 Dumps
Vendor: Oracle Certification: Oracle Database 12c Certified Implementation Specialist
Questions: 150 Q&A's Shared By: leonidas
Question 20

After a ___________ statement is issued, a transaction ends. (select three)

Options:

A.

COMMIT

B.

ROLLBACK

C.

SAVEPOINT

D.

SELECT

E.

CREATE

Discussion
Question 21

Questions 21

Which two statements are true about this common user?

Options:

A.

SQL> conn c##usr/pwd@pdb1

You are connected to PDB1 successfully.

B.

SQL> conn c##usr/pwd@pdb2

You are connected to PDB2 successfully.

C.

SQL> conn c##usr/pwd@pdb2

You are unable to create a connection. You first need to sync PDB2 by executing:

SQL> conn / as sysdba

SQL>exec DBMS_PDB.SYNC_PDB;

D.

SQL> conn c##usr/pwd@pdb2

You are unable to create a connection. You need to create the common user c# #usr explicitly in PDB2 by executing:

SQL>conn system/pwd@pdb2

SQL> CREATE USER c##usrIDENTIFIED BYpwd CONTAINER=CURRENT;

Now you are able to connect as common user c##usr to PDB2.

Discussion
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Question 22

Which two items are key for maintaining data consistency in Oracle Database 12c?

Options:

A.

undo data

B.

isolation level

C.

lock mechanism

D.

serializability

Discussion
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