1Z0-182 Testdump - 1Z0-182 Exam Sample

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Oracle 1Z0-182 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	Displaying Creating and Managing PDBs: This section assesses the knowledge of Cloud Database Architects in creating pluggable databases (PDBs) from seeds or other techniques. It also covers modifying PDB modes and attributes to meet specific application requirements.
Topic 4	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 5	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 6	Introduction to Performance: This section evaluates the expertise of Performance Analysts in summarizing Oracle database performance management techniques. It includes measuring database performance using SQL execution plans, directives, and advisors to ensure optimal system efficiency.
Topic 7	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 8	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 9	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 10	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 11	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.

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Oracle Database 23ai Administration Associate Sample Questions (Q24-Q29):

NEW QUESTION # 24
Which statement is true about database links?

A. Private database link creation requires the same user to exist in both the local and the remote databases.
B. A public database link can be used by a user connected to the local database instance to connect to any schema in the remote database instance.
C. A database link can be created only between two Oracle databases.
D. A database link created in a database allows a connection from that database's instance to the target database's instance, but not vice versa.
E. A public database link can be created only by SYS.

Answer: D

Explanation:
Database links enable cross-database queries in Oracle. Let's analyze each option with extensive detail:
A . A public database link can be created only by SYS.
False. Any user with the CREATE PUBLIC DATABASE LINK privilege (not just SYS) can create a public link (e.g., CREATE PUBLIC DATABASE LINK remote_db CONNECT TO scott IDENTIFIED BY tiger USING 'orcl'). While SYS typically has this privilege, it's not exclusive to SYS.
Mechanics:Privilege is granted via GRANT CREATE PUBLIC DATABASE LINK TO user;. Public links are accessible to all users in the local DB.
Why Incorrect:Overly restrictive; Oracle's security model allows delegation.
B . A database link can be created only between two Oracle databases.
False. Database links can connect to non-Oracle databases using Oracle Heterogeneous Services or gateways (e.g., ODBC or JDBC drivers), such as linking to SQL Server. Example: CREATE DATABASE LINK mssql_link USING 'hsodbc';.
Mechanics:Requires configuration of hs_ parameters in init.ora and a gateway listener.
Historical Note:Heterogeneous links were introduced in 8i, expanded in 23ai for cloud integration.
C . A database link created in a database allows a connection from that database's instance to the target database's instance, but not vice versa.
True. A database link is unidirectional; it enables queries from the local instance to the remote instance (e.g., SELECT * FROM emp@remote_db), but the remote instance can't use it to query back unless a separate link is created there.
Mechanics:Stored in DBA_DB_LINKS, the link defines a one-way connection via a TNS alias or connect string.
Practical Use:Ensures controlled access; bidirectional access requires explicit configuration.
Edge Case:Loops are prevented unless explicitly designed with mutual links.
D . A public database link can be used by a user connected to the local database instance to connect to any schema in the remote database instance.
False. Public links allow all local users to use them, but access to remote schemas depends on the link's credentials (e.g., CONNECT TO scott) and the user's remote privileges. "Any schema" overstates it; access is limited to what the link's user can see.
Why Incorrect:Misrepresents privilege scope; remote schema access isn't universal.
E . Private database link creation requires the same user to exist in both the local and the remote databases.
False. A private link (e.g., CREATE DATABASE LINK my_linkCONNECT TO scott IDENTIFIED BY tiger USING 'orcl') requires the remote user (scott) to exist, but the local creator (e.g., HR) need not match. The link is owned locally and authenticated remotely.
Mechanics:Only the CREATE DATABASE LINK privilege is needed locally.

NEW QUESTION # 25
Which three tasks are part of the predefined Automated Maintenance Tasks?

A. Automatic notification tasks.
B. Automatic error and failure log collection tasks.
C. Automatic Optimizer Statistics Collection.
D. Automatic SQL Plan Management advisor tasks.
E. Automatic Backups of the database system files.
F. Automatic segment and segment statistics advisor tasks.

Answer: C,D,F

Explanation:
A .False. Backups are via RMAN, not AMTs.
B .True. Stats collection is an AMT.
C .False. Error logging isn't an AMT.
D .True. SPM tasks are included.
E .False. Notifications aren't AMTs.
F .True. Segment Advisor is an AMT.

NEW QUESTION # 26
Which two are true about shrinking a segment online?

A. It must be in a tablespace that uses Automatic Segment Space Management (ASSM).
B. It is not possible to shrink either indexes or Index Organized Tables (IOTs).
C. To shrink a table it must have row movement enabled.
D. To shrink a table it must have a UNIQUE KEY constraint.
E. To shrink a table it must have a PRIMARY KEY constraint.

Answer: A,C

Explanation:
A .True. ROW MOVEMENT must be enabled for SHRINK SPACE.
B .False. Indexes and IOTs can be shrunk with CASCADE.
C .False. No such constraint requirement.
D .True. ASSM is required for online shrinking.
E .False. No primary key requirement.

NEW QUESTION # 27
What are Oracle Database Metrics?

A. Oracle Database Metrics are a set of measured statistics per unit of time (per second), transaction, or sessions that are used to evaluate performance.
B. Oracle Database Metrics are part of the Oracle Database Notification system to email information about major database events.
C. Oracle Database Metrics monitor performance using thresholds to generate alerts.
D. Oracle Database Metrics are part of Oracle Enterprise Manager Cloud Control's Notification system used to email alerts.
E. Oracle Database Metrics are a set of statistics built in Oracle Enterprise Manager Cloud Control and used for automation.

Answer: A,C

Explanation:
A .True. Metrics (e.g., V$SYSMETRIC) use thresholds for alerts.
B .False. Metrics aren't tied to email notifications directly.
C .True. Metrics measure rates (e.g., IOPS, transactions/sec).
D .False. EMCC uses metrics, but they're DB-level, not EM-specific.
E .False. Metrics exist in the DB, not just EMCC.

NEW QUESTION # 28
Which data dictionary view describes the data sources of external tables?

A. DBA_ALL_USER_TABLES
B. DBA_ALL_USER_EXTERNAL_TABLES
C. DBA_ALL_USER_TAB_COLUMNS
D. DBA_ALL_USER_EXTERNAL_LOCATIONS

Answer: D

Explanation:
A .True. DBA_EXTERNAL_LOCATIONS (or prefixed variants) shows external table data sources (e.g., file paths).
B-D .False. These views cover columns or tables but not external sources specifically.

NEW QUESTION # 29
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1Z0-182 TESTDUMP - 1Z0-182 EXAM SAMPLE

1Z0-182 Testdump - 1Z0-182 Exam Sample