Most Recent Oracle 1Z0-497 Exam Dumps

Prepare for the Oracle Database 12c Essentials exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Oracle 1Z0-497 exam and achieve success.

The questions for 1Z0-497 were last updated on Mar 30, 2025.

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Question No. 1

Which tablespace contains the data dictionary, being automatically created at database creation?

AUSERS

BTEMP

CSYSAUX

DSYSTEM

EEXAMPLE

Show Answer

Correct Answer: D

http://docs.oracle.com/cd/B10500_01/server.920/a96524/c04space.htm

Question No. 2

View the current parameter settings shown in the output below.

NAMETYPEVALUE

db_file_multiblock_read_count integer 107

ddl_lock_timeout integer 60

Distributed_lock_timeout integer 60

dml_locks integer 748

lock_sga boolean FALSE

enab1e_dd1_1ogging boolean FALSE

resumable_timeout integer 0

A user logs in to the hrschema and issues the following commands:

SQL > CREATE TABLE emp

(empno NUMBER(3),

enamo VARCHAR2(20),

sal NUMBER (8, 2));

SQL > INSERT INTO emp (empno, ename) VALUES(1, 'JAMES');

At this moment, a second user also logs in to the hrschema and issues the following command:

SQL > ALTER TABLE emp MODIFY salNUMBER(10, 2);

What happens in this scenario?

AThe second user's session immediately produces a 'resource busy' error.

BThe second user's command executes successfully.

CThe second user's session waits for a time before producing a 'resource busy' error.

DA deadlock is created.

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Correct Answer: C

Question No. 3

Which statement about Storage Snapshot Optimization is correct?

AIt 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.

BIt 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.

CIt 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.

DIt 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.

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Correct Answer: A

http://docs.oracle.com/cd/E16655_01/backup.121/e17630/release_changes.htm#BRADV276 (new features, third bullet)

Question No. 4

Which statement is true about Enhanced Real-Time ADDM in Oracle Database 12c?

AThe analyzed result is lost when the database instance is restarted.

BIt runs every 1 hour automatically.

CIt is shipped only with Oracle Enterprise Manager 12c.

DIt analyzes high CPU trend and identifies problems before they can threaten application performance.

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Correct Answer: D

Question No. 5

Which three statements are true about a database instance that has mounted a database but has not opened it?

ASystem administrators and users with the CREATE SESSION system privilege may connect to the instance.

BData files are open in read-only mode.

CA control file is open.

DSystem Global Area (SGA) is allocated and background processes are started.

EAn alert log and trace files are open.

FInstance recovery is performed for the database.

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Correct Answer: C, D, E

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