PASS GUARANTEED EFFICIENT 1Z0-182 - ORACLE DATABASE 23AI ADMINISTRATION ASSOCIATE RELIABLE TEST TESTKING

Pass Guaranteed Efficient 1Z0-182 - Oracle Database 23ai Administration Associate Reliable Test Testking

Pass Guaranteed Efficient 1Z0-182 - Oracle Database 23ai Administration Associate Reliable Test Testking

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Oracle Database 23ai Administration Associate Sample Questions (Q11-Q16):

NEW QUESTION # 11
Which three statements are true about Automatic Diagnostic Repository (ADR)?

  • A. It can be used for the problem diagnosis of a database when that database's instance is down.
  • B. It is only used for Oracle database diagnostic information.
  • C. The ADR base is specified in the DIAGNOSTIC_DEST database parameter.
  • D. It is a file-based repository held outside any database.
  • E. It is held inside an Oracle database schema.

Answer: A,C,D

Explanation:
A .True. ADR is a file system directory structure (e.g., /u01/app/oracle/diag), external to the database.
B .False. ADR also stores diagnostics for non-database components (e.g., ASM, listener).
C .False. It's file-based, not schema-based.
D .True. ADR logs (e.g., alert logs, trace files) are accessible even if the instance is down.
E .True. DIAGNOSTIC_DEST sets the ADR base directory.


NEW QUESTION # 12
Which two statements are true about views used for viewing tablespace and datafile information?

  • A. Tablespace free space can be viewed in DBA_TABLESPACES.
  • B. A datafile can be renamed when the database is in MOUNT state and the new file name is displayed when querying DBA_DATA_FILES after the database is opened.
  • C. Tablespace free space can be viewed in V$TABLESPACE.
  • D. V$TABLESPACE displays information that is contained in the control file about tablespaces.
  • E. V$TABLESPACE displays information about tablespaces contained in the data dictionary.

Answer: B,D

Explanation:
A .False. V$TABLESPACE doesn't show free space directly.
B .False. It's from the control file, not the data dictionary.
C .True. Renaming in MOUNT state updates DBA_DATA_FILES post-open.
D .False. DBA_TABLESPACES shows attributes, not free space directly (use DBA_FREE_SPACE).
E .True. V$TABLESPACE reflects control file data.


NEW QUESTION # 13
Which two are benefits of external tables?

  • A. They support DELETEs, which transparently deletes records in the file system as if they were table rows.
  • B. They support UPDATEs, which transparently updates records in the file system as if they were table rows.
  • C. They can be queried, transformed, and joined with other tables without having to load the data first.
  • D. They can be queried while the database is in the MOUNT state like dynamic performance views.
  • E. The results of a complex join or aggregating function or both can be unloaded to a file for transportation to other systems.

Answer: C,E

Explanation:
A .False. External tables are read-only; no DELETE.
B .False. Require OPEN state, unlike V$ views.
C .False. No UPDATE support; read-only.
D .True. Queryable like regular tables without loading.
E .True. Data Pump can unload query results to files.


NEW QUESTION # 14
You execute this command: CREATE SMALLFILE TABLESPACE sales DATAFILE '/u01/app/oracle/sales01.dbf' SIZE 5G SEGMENT SPACE MANAGEMENT AUTO; Which two statements are true about the SALES tablespace?

  • A. It uses the database default block size.
  • B. It is a locally managed tablespace.
  • C. Any data files added to the tablespace must have a size of 5 gigabytes.
  • D. Free space is managed using freelists.
  • E. It must be smaller than the smallest BIGFILE tablespace.

Answer: A,B

Explanation:
A . Free space is managed using freelists.False. The SEGMENT SPACE MANAGEMENT AUTO clause specifies Automatic Segment Space Management (ASSM), which uses bitmaps to track free space, not freelists (used in Manual Segment Space Management).
B . It uses the database default block size.True. The BLOCKSIZE clause is not specified in the command, so the tablespace inherits the database's default block size (typically 8K unless altered via DB_BLOCK_SIZE).
C . It must be smaller than the smallest BIGFILE tablespace.False. There's no such restriction; SMALLFILE and BIGFILE tablespaces differ in structure (multiple vs. single data file), not mandated size relationships.
D . It is a locally managed tablespace.True. In Oracle 23ai, all tablespaces created without an explicit EXTENT MANAGEMENT DICTIONARY clause are locally managed by default, using extent allocation bitmaps in the data file headers.
E . Any data files added to the tablespace must have a size of 5 gigabytes.False. The initial data file is 5G, but additional data files can have different sizes when added using ALTER TABLESPACE ... ADD DATAFILE.


NEW QUESTION # 15
What are Optimizer Statistics?

  • A. Optimizer Statistics are part of system performance statistics stored in AWR required for calculating SQL execution plans.
  • B. Optimizer Statistics are a set of data distribution statistics collected in real time as data is inserted, deleted, or updated, which are stored in AWR and used for generating SQL execution plans.
  • C. Optimizer Statistics are table, column, index, and system statistics used for generating efficient SQL execution plans.
  • D. Optimizer Statistics are statistics about data distribution within Oracle Datafiles.

Answer: C

Explanation:
A .False. Not real-time; collected periodically.
B .False. Not about datafile distribution.
C .True. Includes table, column, index stats for plan generation.
D .False. Stored in data dictionary, not AWR.


NEW QUESTION # 16
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