Oracle certkiller 1z0-497 Exam Questions Tutorials by Leonidas q45 vce pdf

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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:

COMMIT

ROLLBACK

SAVEPOINT

SELECT

CREATE

Discussion

Question 21

Questions 21

Which two statements are true about this common user?

Options:

SQL> conn c##usr/pwd@pdb1

You are connected to PDB1 successfully.

SQL> conn c##usr/pwd@pdb2

You are connected to PDB2 successfully.

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;

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

Question 22

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

Options:

undo data

isolation level

lock mechanism

serializability

Discussion

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