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Questions 21

Your customer is looking for a solution to address these downtime needs:

- Online addition and removal of disks should automatically rebalance data across new storage configurations while storage, database, and applications remain online.

- Dynamically add or remove clustered nodes without disrupting the database or applications.

- Automate the sizing and distribution of shared memory.

- Add a column with a default value without disrupting the database or applications.

- Perform rolling patch upgrades.

Which four would you recommend to address those needs?

Options:
A.

Automatic Storage Management (ASM)

B.

Online Data and Application change

C.

Global Data Services (GDS)

D.

Real Application Clusters (RAC)

E.

Oracle Streams

F.

Online Table Redefinition

G.

Oracle Database Vault

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Questions 22

Which tool is recommended for moving a PDB to a non-CDB?

Options:
A.

RMAN

B.

Cold Backup

C.

Traditional Export / Import

D.

Data Pump

E.

SQL*Plus

Questions 23

You execute the following command:

SQL> ALTER USER skd ACCOUNT LOCK;

Which two statements are correct?

Options:
A.

The SKD user cannot log in to the database instance.

B.

The objects owned by the SKD user are not accessible to any user.

C.

Other users can access objects owned by the SKD user, to which they have access.

D.

The SKD user's password expires and the user is forced to change the password at the next login.

Questions 24

Which statement about Storage Snapshot Optimization is correct?

Options:
A.

It enables you to use third-party technologies to take a storage snapshot of your database without putting the database in BACKUP mode. You can then use the snapshot to recover all or part of the database.

B.

It enables you to use RMAN to take a storage snapshot of your database. The database must be in BACKUP mode. You can then use the snapshot to recover all or part of the database.

C.

It enables you to use RMAN to take a storage snapshot of your database. The database doesn't have to be in BACKUP mode. You can then use the snapshot to recover all or part of the database.

D.

It enables you to use third-party technologies to take a storage snapshot of your database. The database must be in BACKUP mode. You can then use the snapshot to recover all or part of the database.

Questions 25

You are installing OracleDatabase 12c on a machine. When you run the installer; Oracle Universal installer (OUI) shows a message that says one of the product-specific prerequisite checks has failed:

Checking available swap space requirements...

Expected result: 1512MB

Actual Result: 1018MB

Check complete. The overall result of this check is: failed ««

Problem: The system does not have the required swap space.

What happens to the installation in this situation?

Options:
A.

It can be continued.

B.

It resizes the swap space automatically when you proceed further.

C.

It can be continued, but the instance cannot be started without increasing swap space.

D.

It shows a message saying one or more prerequisite checks have failed and the installation aborts.

Questions 26

Examine the statements:

SQL> CREATE TABLESPACE MYTBS DATAFILE '/disk1/mytbs_l.dbf ' SIZE 10M;

SQL> CREATE TABLE mytab (id NUMBER, descr VARCHAR2 (100) )

PARTITION BY RANGE(id) (

partition pi values loss than (100000) tablespacemytbs storage (initial lm),

partition p2 values less than (MAXVALUE) tablespacemytbs storage (initial 1m)

);

When inserting data, you get the error:

ORA-01688: unable to extend table SYS.MYTAB partition P2 by 128 in tablespace MYTBS

Which three operations would allow you to insert data without getting the error message?

Options:
A.

Extend the logical volume by 10 MB where the data files are stored;

# lvextend -L+10M /diskl

B.

Add a data file:

SQL>ALTER TABLESPACE MYTBS ADD DATAFILE ' /disk1/mytbs_2 .dbf SIZE 10M;

C.

Move a partition to another tablespace:

SQL> CREATE TABLESPACE ADDITIONAL_TBS DATAFILE '/disk1/additional_tbs_1 .dbf' SIZE 10M;

SQL> ALTER TABLE MYTAB MOVE PARTITION P2 TABLESPACE ADDlTIONAL_TBS;

D.

Resize the existing data file:

SQL> ALTER DATABASE DATAFILE '/diskl/mytbs_l .dbf' RESIZE 20M;

E) Remove a data file:

SQL> ALTER TABLESPACE MYTBS DROP DATAFILE '/diskl/mytbs_l - dbf';

Questions 27

Your customer is looking for a solution that meets these four needs:

1 - Replicate data from source to target for reporting purposes.

2 -Replicate data from one source to multiple targets.

3 - Replicate data between two databases for instant failover.

4 - Replicate data from multiple sources to a single target for a data warehouse.

Which GoldenGate-supported topology would you recommended?

Options:
A.

Uni-directional for 1

Peer-to-peer for 2

Bi-directional for 3

Consolidation for 4

B.

Peer-to-peer for 1

Broadcast for 2

Bi-directional for 3

Consolidation for 4

C.

Uni-directional for 1

Broadcast for 2

Bi-directional for 3

Consolidation for 4

D.

Peer-to-peer for 1

Consolidation for 2

Broadcast for 3

Cascading for 4

Questions 28

Your database instance is down because there was a user-initiated shutdown. Which option represents the actions performed, in the correct order, if you start up the instance?

a - The control file is read.

b - Memory is allocated.

c - Background processes pre started.

d -The initialization parameter file is read,

e- Redo log files and data files are opened.

Options:
A.

b, c, a

B.

d, a, e

C.

a, e, d, b

D.

d, b, c, a, e

E.

c, b, d, a, e

Questions 29

Which three options correctly match environment variables with their specific functionality?

Options:
A.

ORACLE_SID specifies the instance name.

B.

ORACLE_SID specifies the global database name.

C.

ORACLE_BASE specifies the root of the Oracle Database directory tree in all platforms.

D.

ORACLE_BASE specifies the root of the Oracle Database directory tree only in UNIX and Linux platforms.

E.

ORACLE_HOME specifies the directory containing the Oracle software executables and network files.

F.

ORACLE_HOME specifies the directory containing only the Oracle software executables, but not the network files.

Questions 30

Consider 10 scenarios that result in database downtime. Which five of them are considered as planned downtime?

Options:
A.

addition or removal of nodes, memory, or disks

B.

changing configuration parameters, upgrading, or patching Oracle software

C.

file deletion

D.

migrating to cluster architecture

E.

dropped database object

F.

table definition changes

G.

runaway processes that consume system resources

Exam Code: 1z0-497
Certification Provider: Oracle
Exam Name: Oracle Database 12c Essentials
Last Update: Jan 24, 2025
Questions: 150

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