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Oracle 1Z0-182 Exam Syllabus Topics:

Topic	Details
Topic 1	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 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	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).
Topic 4	Configuring Oracle Net Services: This section measures the skills of Network Administrators and Database Administrators in configuring Oracle Net Services. It includes identifying administration components, describing connection methods, and ensuring seamless communication between clients and databases.
Topic 5	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 6	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 7	Managing Tablespaces and Datafiles: This section assesses the abilities of Storage Administrators in creating, modifying, and describing tablespaces. It also covers recognizing data storage requirements and understanding datafile placement for efficient storage management.
Topic 8	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.

Oracle Database 23ai Administration Associate Sample Questions (Q77-Q82):

NEW QUESTION # 77
Which two account management capabilities can be configured using Oracle profiles?

A. The number of days for which an account may be inactive before it is locked.
B. The number of days for which an account may be logged in to one or more sessions before it is locked.
C. The ability to prevent a password from ever being reused.
D. The maximum number of sessions permitted for a user before the password must be changed.
E. The maximum amount of CPU time allowed for a user's sessions before their account is locked.

Answer: A,C

Explanation:
A .False. Session limits don't tie to password changes.
B .False. CPU limits don't lock accounts.
C .False. No direct "logged-in days" parameter.
D .True. PASSWORD_REUSE_MAX=UNLIMITED prevents reuse.
E .True. PASSWORD_LOCK_TIME sets inactivity lockout.

NEW QUESTION # 78
Which of the following is true about the status of a PDB that has been unplugged from a CDB?

A. The STATUS column in CDB_PDBS of the unplugged PDB will be DISABLED.
B. The STATUS column in CDB_PDBS of the unplugged PDB will be REMOVED.
C. The STATUS column in CDB_PDBS of the unplugged PDB will be UNPLUGGED.
D. The STATUS column in CDB_PDBS of the unplugged PDB will be UNAVAILABLE.

Answer: C

Explanation:
A .True. After ALTER PLUGGABLE DATABASE ... UNPLUG, CDB_PDBS.STATUS shows UNPLUGGED.
B .False. UNAVAILABLE isn't a valid status here.
C .False. REMOVED isn't used; UNPLUGGED persists until dropped.
D .False. DISABLED isn't a PDB state in this context.

NEW QUESTION # 79
Which two statements describe how Optimizer Statistics are collected?

A. Optimizer Statistics are collected in real-time as data is inserted, deleted, or updated.
B. Optimizer Statistics are collected automatically by Automatic Workload Repository (AWR) Snapshot.
C. Optimizer Statistics are collected automatically by an automatic maintenance job that runsduring predefined maintenance windows.
D. Optimizer Statistics can be manually collected at multiple levels using DBMS_STATS.GATHER_*_STATS PL/SQL procedures.
E. Optimizer Statistics are collected by the Statistics Advisor.

Answer: C,D

Explanation:
Optimizer Statistics drive the cost-based optimizer's query plans. Let's dissect each option:
A . Optimizer Statistics are collected automatically by an automatic maintenance job that runs during predefined maintenance windows.
True. Oracle 23ai uses the AutoTask framework to gather stats automatically during maintenance windows (e.g., nightly 10 PM-2 AM). The GATHER_STATS_PROG job, managed by DBMS_AUTO_TASK_ADMIN, collects stats for stale or missing objects.
Mechanics:Controlled by STATISTICS_LEVEL=TYPICAL (default) and the DEFAULT_MAINTENANCE_PLAN. It prioritizes objects with >10% changes (stale stats) or no stats.
Practical Use:Ensures stats are current without manual intervention, critical for dynamic workloads.
Edge Case:Disabled if STATISTICS_LEVEL=BASIC or the job is manually disabled via DBMS_AUTO_TASK_ADMIN.DISABLE.
B . Optimizer Statistics are collected in real-time as data is inserted, deleted, or updated.
False. Stats aren't updated in real-time; this would be too resource-intensive. Instead, Oracle tracks changes (e.g., via DBA_TAB_MODIFICATIONS) and updates stats periodically via AutoTask or manually. Real-time stats exist in 23ai for specific cases (e.g., GATHER_TABLE_STATS with REAL_TIME_STATS), but it's not the default.
Why Incorrect:Real-time collection would degrade performance for OLTP systems, contradicting Oracle's batch approach.
C . Optimizer Statistics can be manually collected at multiple levels using DBMS_STATS.GATHER_*_STATS PL/SQL procedures.
True. The DBMS_STATS package offers granular control: GATHER_TABLE_STATS, GATHER_SCHEMA_STATS, GATHER_DATABASE_STATS, etc., allowing stats collection for tables, schemas, or the entire database.
Mechanics:Example: BEGIN DBMS_STATS.GATHER_TABLE_STATS('HR', 'EMPLOYEES'); END;. Options like ESTIMATE_PERCENT and DEGREE fine-tune the process.
Practical Use:Used for immediate stats updates post-DML or for custom schedules outside maintenance windows.
Edge Case:Overuse can lock stats (e.g., FORCE=TRUE), requiring careful management.
D . Optimizer Statistics are collected by the Statistics Advisor.
False. The Statistics Advisor (new in 23ai) analyzes and recommends stats improvements but doesn't collect them. Collection is still via DBMS_STATS or AutoTask.
Why Incorrect:It's a diagnostic tool, not an executor.
E . Optimizer Statistics are collected automatically by Automatic Workload Repository (AWR) Snapshot.
False. AWR snapshots capture performance metrics (e.g., wait times), not optimizer stats. Stats collection is a separate process via AutoTask or manual commands.
Why Incorrect:AWR and stats collection serve distinct purposes-monitoring vs. optimization.

NEW QUESTION # 80
Which three statements are true about Deferred Segment Creation in Oracle databases?

A. Sessions may dynamically switch back and forth from DEFERRED to IMMEDIATE segment creation.
B. It is supported for Index Organized Tables (IOTs) contained in locally managed tablespaces.
C. It is the default behavior for tables and indexes.
D. Indexes inherit the DEFERRED or IMMEDIATE segment creation attribute from their parent table.
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 # 81
Which three statements are true about roles?

A. Object privileges may not be granted to roles.
B. The SET ROLE statement can enable one or more roles for a session.
C. Roles may be granted to other roles.
D. All roles granted to a user are set on default when the user logs in.
E. The SET ROLE statement can disable one or more roles for a session.
F. Roles must be password protected.

Answer: B,C,E

Explanation:
Roles in Oracle manage privileges efficiently. Let's dive into each option:
A . Roles must be password protected.
False. Roles can be password-protected (e.g., CREATE ROLE mgr IDENTIFIED BY secret), but it's optional. Non-protected roles (default) are enabled automatically if granted, requiring no password.
Mechanics:Password-protected roles need SET ROLE mgr IDENTIFIED BY secret, enhancing security for sensitive privileges.
B . Roles may be granted to other roles.
True. Roles can form hierarchies (e.g., GRANT clerk TO mgr), allowing nested privilege management.
Mechanics:A user with mgr inherits clerk privileges indirectly. Revoking clerk from mgr cascades appropriately.
Practical Use:Simplifies complex privilege structures in large organizations.
C . The SET ROLE statement can enable one or more roles for a session.
True. SET ROLE role1, role2; activates specified roles for the session, assuming they're granted and not password-protected (or password is provided).
Mechanics:Enabled roles grant their privileges immediately within the session scope.
D . Object privileges may not be granted to roles.
False. Object privileges (e.g., GRANT SELECT ON emp TO clerk) are a primary use of roles, making this statement incorrect.
Why Incorrect:Roles are designed for this purpose, contradicting the option.
E . All roles granted to a user are set on default when the user logs in.
False. Only roles marked as DEFAULT ROLE (via ALTER USER ... DEFAULT ROLE role1) are enabled at login. Non-default roles require SET ROLE.
Mechanics:Check via SELECT * FROM DBA_ROLE_PRIVS WHERE DEFAULT_ROLE='YES'.
F . The SET ROLE statement can disable one or more roles for a session.
True. SET ROLE NONE disables all roles, or SET ROLE role1 implicitly disables others not listed, providing granular control.
Practical Use:Useful for testing or restricting privileges temporarily.

NEW QUESTION # 82
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