Free Oracle 1Z0-497 Exam Questions

Become Oracle Certified with updated 1Z0-497 exam questions and correct answers

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Total 155 Questions | Updated On: Oct 28, 2025

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Question 1

Which process is responsible for writing the contents of database buffers to data files?

A : Process Monitor process (PMON)

B : Listener Registration process (LREG)

C : System Monitor process (SMON)

D : Database Writer process (DBW)

E : Log Writer process (LGWR)

F : Checkpoint process (CKPT)

Answer: D

Question 2

You execute some DMLcommands, followed by a COMMITStatement Which option correctly describes how the logwriter (LGWR) process takes part in the transaction commit?

A : 1. LGWR writes the commit record to disk.2. LGWR writes all redo entries from Redo Log Buffer to disk.

B : 1. GWR writes only the transaction's redo entries from Redo Log Buffer to disk.2. LGWR writes the commit record to disk.

C : 1. LGWR puts the commit record to Redo Log Buffer.2. IGWR writes all redo entries from Redo Log Buffer to disk.

D : 1. LGWR puts the commit record to Redo Log Buffer.2. If the activity is high, LGWR waits three seconds for other transactions to commit.3. LGWR writes all redo log entries from Redo Log Buffer to disk.

E : 1. LGWR puts the commit record to Redo Log Buffer.2. LGWR signals the database writer (DBW) process to write dirty blocks to disk.3. LGWR writes all redo entries from Redo Log Buffer to disk.

Answer: B

Question 3

Which two statements about Automatic Data Optimization (ADO) are true?

A : ADO policies can automatically compress data when it qualifies.

B : ADO policies can automatically move segments when necessary.

C : ADO is not dependent on Heat Map, and works even if Heat Map is disabled.

D : You cannot compress at block level, but you can compress at segment level.

E : You can compress at row level only for QUERY LOW.

Answer: D,E

Question 4

You are about to apply a patch to a database. Which recommended action is incorrect?

A : You should check the patch conflict with installed patches before applying the patch

B : You should make sure that you have a good backup of the software, database, and configuration files.

C : You should install the latest O patch before applying the patch.

D : You should check the fifth digit of the release information to confirm that the Patch Set Update (PSU) is applied successfully.

E : You should stop all applications running from the software directory that is being patched.

Answer: B

Question 5

What must you do to an application for it to take advantage of partitioning?

A : recompile it

B : rewrite its SQL queries

C : relink

D : rework the applications schema

E : nothing; it is transparent

Answer: E

Page: 1 / 31

Total 155 Questions | Updated On: Oct 28, 2025

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