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Oracle 1Z1-182 Exam Syllabus Topics:

Topic
Details

Topic 1

Automated Maintenance: This section measures the skills of Database Administrators in describing automated maintenance tasks within Oracle databases. It focuses on applying automated features to streamline routine maintenance activities.

Topic 2

Managing Users, Roles, and Privileges: This domain evaluates the expertise of Security Administrators in implementing user security measures. It focuses on creating and managing users, roles, and privileges to ensure secure access to Oracle databases.

Topic 3

Describe Oracle Database Architecture: This section of the exam measures the skills of Database Administrators and System Architects in understanding the Oracle database architecture. It covers the configurations of Oracle database instances, memory structures like SGA and PGA, and process structures such as background processes. It also explains the logical and physical database structures, including datafiles, control files, and redo log files.

Topic 4

Managing Undo: This domain measures the skills of Database Administrators in using undo data effectively. It compares undo data with redo data and explains temporary undo usage for efficient transaction management.

Topic 5

Describe Managing Database Instances: This section tests the knowledge of Database Administrators in performing essential tasks for managing database instances. It includes starting and shutting down databases, utilizing dynamic performance views, managing initialization parameter files, and using the Automatic Diagnostic Repository (ADR) for troubleshooting.

Topic 6

Moving Data: This section evaluates the expertise of Data Migration Specialists in moving data within Oracle databases. It includes using external tables, executing Oracle Data Pump operations, and distinguishing SQL*Loader commands for importing data efficiently.

Topic 7

Employ Oracle-Supplied Database Tools: This section evaluates the abilities of Database Engineers and Support Specialists in identifying and using Oracle-supplied tools for managing databases. It focuses on leveraging tools to monitor, troubleshoot, and optimize database performance effectively.

Topic 8

Managing Storage: This section tests the knowledge of Storage Engineers in managing storage features such as resumable space allocation, segment space-saving, and block space management. It also includes defining segment characteristics to optimize storage utilization.

Topic 9

Introduction to Auditing: This domain tests the abilities of Compliance Specialists in implementing database auditing practices. It includes creating, modifying, and maintaining auditing policies while applying value-based auditing techniques like Fine-Grained Auditing (FGA).

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Oracle Database 23ai Administration Associate Sample Questions (Q75-Q80):

NEW QUESTION # 75
Examine this command: SQL> ALTER TABLE ORDERS SHRINK SPACE COMPACT; Which two statements are true?

A. Only queries are allowed on ORDERS while SHRINK is executing.
B. Queries and DML statements are allowed on ORDERS while the SHRINK is executing.
C. Dependent indexes become UNUSABLE.
D. The high-water mark (HWM) of ORDERS is adjusted.
E. The SHRINK operation causes rows to be moved to empty space starting from the beginning of the ORDERS segment.
F. The SHRINK operation causes rows to be moved to empty space starting toward the end of the ORDERS segment.

Answer: B,E

Explanation:
A . Dependent indexes become UNUSABLE.False. SHRINK SPACE COMPACT does not affect index usability; only SHRINK SPACE without COMPACT may require index maintenance if CASCADE is omitted.
B . ... starting toward the end of the ORDERS segment.False. Rows are compacted toward the beginning of the segment, not the end.
C . Only queries are allowed ...False. Both queries and DML are allowed during SHRINK SPACE COMPACT as it's an online operation.
D . The high-water mark (HWM) of ORDERS is adjusted.False. COMPACT moves rows but doesn't adjust the HWM; the full SHRINK SPACE command is needed for HWM adjustment.
E . Queries and DML statements are allowed ...True. This is an online operation in 23ai, allowing concurrent access.
F . ... starting from the beginning of the ORDERS segment.True. Rows are moved to fill free space from the segment's start.

NEW QUESTION # 76
Which three are benefits of using temp UNDO when performing DML on global temporary tables?

A. It reduces I/Os to the SYSTEM tablespace.
B. It reduces the amount of UNDO stored in the UNDO tablespace.
C. It reduces I/Os to the SYSAUX tablespace.
D. It reduces the amount of redo generated.
E. It permits DML on global temporary tables even if the database is opened read-only.

Answer: A,B,D

Explanation:
Temp UNDO, introduced in Oracle 12c and refined in 23ai, stores undo for global temporary tables (GTTs) in temporary tablespaces:
A . It permits DML on GTTs even if the database is opened read-only.False. In read-only mode, DML on GTTs is allowed regardless of temp UNDO, as GTT data is session-private, but temp UNDO doesn't specifically enable this.
B . It reduces the amount of UNDO stored in the UNDO tablespace.True. Temp UNDO stores undo in the temporary tablespace, reducing usage of the permanent UNDO tablespace.
C . It reduces I/Os to the SYSTEM tablespace.True. By avoiding permanent undo, it reduces metadata updates in the SYSTEM tablespace related to undo management.
D . It reduces the amount of redo generated.True. Temp UNDO changes are not redo-logged to the same extent as permanent undo, minimizing redo generation.
E . It reduces I/Os to the SYSAUX tablespace.False. SYSAUX is unrelated to undo management; temp UNDO affects temporary and SYSTEM tablespaces.

NEW QUESTION # 77
Which three statements are true about UNDO and REDO?

A. UNDO is used for read consistency.
B. REDO is used for read consistency.
C. REDO is used for ROLLBACK.
D. REDO is used for instance recovery.
E. Both REDO and UNDO can be multiplexed.
F. UNDO is used for some flashback operations.

Answer: A,D,F

Explanation:
A . REDO is used for read consistency.False. Read consistency is achieved using UNDO, which provides a consistent view of data as of a specific point in time. REDO logs changes for recovery, not consistency.
B . UNDO is used for some flashback operations.True. Flashback features like Flashback Query and Flashback Table rely on UNDO to reconstruct past states of data.
C . UNDO is used for read consistency.True. UNDO stores pre-change data, enabling multi-version read consistency for queries.
D . Both REDO and UNDO can be multiplexed.False. REDO logs can be multiplexed (mirrored across multiple destinations), but UNDO is managed within a single UNDO tablespace per instance (though it can have multiple data files).
E . REDO is used for ROLLBACK.False. ROLLBACK uses UNDO to revert changes; REDO logs the changes but isn't used to undo them.
F . REDO is used for instance recovery.True. REDO logs are replayed during instance recovery to reapply committed changes after a crash.

NEW QUESTION # 78
Your data center uses Oracle Managed Files (OMF) for all databases. All tablespaces are smallfile tablespaces. SALES_Q1 is a permanent user-defined tablespace in the SALES database. The following command is about to be issued by a DBA logged in to the SALES database: ALTER TABLESPACE sales_q1 ADD DATAFILE; Which two actions independently ensure that the command executes successfully?

A. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 MB of available space.
B. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.
C. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.
D. Specify a path in the DATAFILE clause of the command specifying a location with at least 100 MB of available space.
E. Add the AUTOEXTEND ON clause with NEXT set to 100M.

Answer: A,C

Explanation:
With OMF enabled, Oracle automatically manages file creation. The command ALTER TABLESPACE sales_q1 ADD DATAFILE without a file specification relies on initialization parameters:
A . Specify a path in the DATAFILE clause ... with at least 100 MB of available space.False. With OMF, explicitly specifying a path overrides OMF behavior, but it's not required for success if OMF parameters are set correctly.
B . Add the AUTOEXTEND ON clause with NEXT set to 100M.False. AUTOEXTEND is optional and affects file growth, not the initial creation success, which depends on available space in the OMF location.
C . Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.True. If both parameters are set,Oracle may use either for data files (depending on context), and sufficient space (e.g., 50 MB minimum for a smallfile) ensures success.
D . Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 MB of available space.True. This is the primary OMF parameter for data files; sufficient space (typically 100 MB minimum for a new file) guarantees the command succeeds.
E . Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.False. This is redundant with C; only one needs sufficient space, though C's phrasing makes it a valid independent action.

NEW QUESTION # 79
Which three statements are true about Deferred Segment Creation in Oracle databases?

A. It is the default behavior for tables and indexes.
B. It is supported for Index Organized Tables (IOTs) contained in locally managed tablespaces.
C. Indexes inherit the DEFERRED or IMMEDIATE segment creation attribute from their parent table.
D. Sessions may dynamically switch back and forth from DEFERRED to IMMEDIATE segment creation.
E. It is supported for SYS-owned tables contained in locally managed tablespaces.

Answer: A,C,D

Explanation:
A .False. IOTs require immediate segment creation.
B .False. SYS-owned tables don't use deferred creation.
C .True. Default since 11gR2, continued in 23ai.
D .True. Indexes inherit this attribute unless overridden.
E .True. Sessions can alter this via DEFERRED_SEGMENT_CREATION.

NEW QUESTION # 80
......

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