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Oracle Database 23ai Administration Associate Sample Questions (Q56-Q61):

NEW QUESTION # 56
Which two statements are true about the PMON background process?

A. It records checkpoint information in the control file.
B. It registers database services with all local and remote listeners known to the database instance.
C. It frees unused temporary segments.
D. It frees resources held by abnormally terminated processes.
E. It rolls back transactions when a process fails.

Answer: D,E

Explanation:
A .False. LREG handles registration in 23ai, not PMON.
B .False. CKPT (Checkpoint) process updates the control file.
C .True. PMON cleans up after failed processes (e.g., releases locks).
D .True. PMON rolls back uncommitted transactions of failed processes.
E .False. SMON (System Monitor) manages temporary segment cleanup.

NEW QUESTION # 57
Examine this command: ALTER DATABASE MOVE DATAFILE '/u01/sales01.dbf' TO '/u02/sales02.dbf'; Which two statements are true?

A. The "TO" clause containing the new file name must be specified even if Oracle Managed Files (OMF) is used.
B. Compressed objects in sales01.dbf will be uncompressed in sales02.dbf after the move.
C. DML may be performed on tables with one or more extents in this data file during the execution of this command.
D. It overwrites any existing file with the name sales02.dbf in /u02 by default.
E. Tables with one or more extents in this data file may be queried during the execution of this command.

Answer: C,E

Explanation:
The ALTER DATABASE MOVE DATAFILE command relocates a data file to a new location while the database remains online, introduced in Oracle 12c and enhanced in subsequent releases like 23ai. Let's evaluate each option:
A . DML may be performed on tables with one or more extents in this data file during the execution of this command.True. The move operation is online by default in Oracle 23ai, allowing DML (INSERT, UPDATE, DELETE) operations on tables within the data file being moved. The database ensures consistency using redo and undo mechanisms.
B . It overwrites any existing file with the name sales02.dbf in /u02 by default.False. By default, the command does not overwrite an existing file unless the REUSE clause is specified (e.g., ALTER DATABASE MOVE DATAFILE ... REUSE). Without it, the command fails if the target file exists.
C . The "TO" clause containing the new file name must be specified even if Oracle Managed Files (OMF) is used.False. When OMF is enabled (via DB_CREATE_FILE_DEST), the TO clause is optional. If omitted, Oracle automatically generates a file name and places it in the OMF destination.
D . Compressed objects in sales01.dbf will be uncompressed in sales02.dbf after the move.False. The move operation is a physical relocation of the data file; it does not alter the logical structure or compression state of objects within it. Compressed data remains compressed.
E . Tables with one or more extents in this data file may be queried during the execution of this command.True. The online nature of the move allows queries (SELECT statements) to proceed without interruption, leveraging Oracle's multi-version consistency model.

NEW QUESTION # 58
Which two AWR-based tools listed below are part of Oracle Database self-tuning components?

A. Automatic Application Tracing used to collect High-Load SQL statements and statistics.
B. ADDM, a server-based expert that reviews database performance statistics captured by Snapshots to identify potential problems before system performance degrades noticeably.
C. Automatic capture of statistical information from the SGA and storing it in the AWR using Automatic Database Diagnostic.
D. Automatic Application Tracing used to collect High-Load SQL statements and statistics.
E. Automatic population of performance views (V$ views) from statistical data stored in AWR repository and using Automatic Database Diagnostic.
F. Automatic Diagnostic Collector used to capture and store database errors and hung analysis.

Answer: B,C

Explanation:
False. No "Automatic Application Tracing" exists as an AWR tool. SQL tracing (e.g., DBMS_MONITOR) is manual, and high-load SQL is captured by AWR indirectly via V$SQL snapshots, not a distinct tracing tool.
Why Incorrect:Conflates manual tracing with AWR's passive collection.
Explanation:
The Automatic Workload Repository (AWR) is a cornerstone of Oracle's self-tuning capabilities, collecting and storing performance statistics for analysis. Let's dissect each option:
A : Automatic capture of statistical information from the SGA and storing it in the AWR using Automatic Database Diagnostic.
True. AWR automatically captures statistics (e.g., wait events, SQL stats) from the System Global Area (SGA) via the MMON (Manageability Monitor) process, storing them in the AWR repository (in SYSAUX). This is part of the Automatic Database Diagnostic Monitor (ADDM) framework, though "Automatic Database Diagnostic" likely refers to this broader mechanism.
Mechanics:Snapshots are taken hourly by default (configurable via DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS), persisting data like DBA_HIST_SYSSTAT for self-tuning analysis.
Practical Use:Enables historical performance tracking, feeding tools like ADDM and SQL Tuning Advisor.
Edge Case:If STATISTICS_LEVEL=BASIC, AWR collection is disabled, haltingself-tuning.
Historical Note:Introduced in 10g, enhanced in 23ai for finer granularity.
B : ADDM, a server-based expert that reviews database performance statistics captured by Snapshots to identify potential problems before system performance degrades noticeably.
True. The Automatic Database Diagnostic Monitor (ADDM) analyzes AWR snapshots to proactively detect issues (e.g., high CPU usage, I/O bottlenecks) and recommend fixes. It runs automatically after each snapshot in maintenance windows.
Mechanics:ADDM uses DBA_ADVISOR_FINDINGS to log issues, leveraging AWR data like DBA_HIST_SQLSTAT. Example: It might suggest adding an index for a slow query.
Practical Use:Prevents performance degradation in production systems by catching trends early.
Edge Case:Limited by snapshot frequency; real-time issues may need manual intervention.
C : Automatic Diagnostic Collector used to capture and store database errors and hung analysis.
False. No such tool exists as an "Automatic Diagnostic Collector" in AWR context. This likely confuses the Incident Packaging Service (IPS) or ADR (Automatic Diagnostic Repository), which handles errors but isn't AWR-based or self-tuning.
Why Incorrect:ADR collects trace files and logs, not AWR statistics, and isn't part of self-tuning.
D : Automatic population of performance views (V$ views) from statistical data stored in AWR repository and using Automatic Database Diagnostic.
False. V$ views (e.g., V$SESSION) are real-time memory structures in the SGA, not populated from AWR, which is historical (e.g., DBA_HIST_*). AWR doesn't back-feed V$ views; the reverse occurs via snapshots.
Why Incorrect:Misunderstands the data flow; AWR is a sink, not a source for V$ views.

NEW QUESTION # 59
Which three statements are true about the tools used to configure Oracle Net Services?

A. The Oracle Net Configuration Assistant is only used when running the Oracle installer.
B. Oracle Net Manager can be used to locally configure naming methods on a database server.
C. Oracle Net Manager can be used to centrally configure listeners on any database server target.
D. Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server.
E. The lsnrctl utility requires a listener.ora file to exist before it is started.
F. Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server target.

Answer: B,D,F

Explanation:
A .False. Net Manager is local, not centralized.
B .False. NetCA can run standalone.
C .True. EMCC manages service names centrally.
D .True. EMCC configures listeners on managed targets.
E .False. lsnrctl starts a default listener if no listener.ora exists.
F .True. Net Manager configures local tnsnames.ora.

NEW QUESTION # 60
Which two statements are true about the configuration and use of UNDO?

A. Unexpired UNDO is always retained.
B. UNDO_RETENTION specifies how long all types of UNDO are retained.
C. UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.
D. Active UNDO is always retained.
E. UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unconsumed UNDO.

Answer: C,D

Explanation:
A .True. Active (in-use) UNDO is never overwritten.
B .False. Unexpired UNDO can be reused if space is needed.
C .False. Applies to unexpired, not expired UNDO.
D .False. Only unexpired UNDO is targeted.
E .True. UNDO_RETENTION sets the retention goal for unexpired UNDO.

NEW QUESTION # 61
......

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1Z0-182 Pass Test - Valid 1Z0-182 Test Questions

Valid 1Z0-182 Test Questions - 1Z0-182 Exam Materials

Oracle Database 23ai Administration Associate Sample Questions (Q56-Q61):

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