Exam 1Z1-182 Cram - Study 1Z1-182 Plan

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Oracle 1Z1-182 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	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 4	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 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	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 7	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 8	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.

Oracle Database 23ai Administration Associate Sample Questions (Q47-Q52):

NEW QUESTION # 47
Which statement is true about database links?

A. A public database link can be created only by SYS.
B. A database link created in a database allows a connection from that database's instance to the target database's instance for selecting schema data.
C. Private database link creation requires the same user to exist in both the local and the remote databases.
D. A database link can be created only between two Oracle databases.
E. A public database link can be used by any user allowing remote database instance connection for selecting schema data.

Answer: B

Explanation:
A .False. Links can connect to non-Oracle DBs via gateways.
B .False. No such user requirement; authentication is separate.
C .False. Any user with CREATE PUBLIC DATABASE LINK can create one.
D .True. Links enable remote schema access (e.g., SELECT * FROM emp@remote).
E .False. Public links allow access, but privileges on remote objects are needed.

NEW QUESTION # 48
orcl.dmp contains a full export of the ORCL database. This command is executed to load data from orcl.dmp into the TESTDB database: [oracle@host01 ~] impdp system/oracle SCHEMAS=sh,oe REMAP_SCHEMA=sh:hr DUMPFILE=orcl.dmp EXCLUDE=index TABLE_EXISTS_ACTION=replace LOGFILE=impdp.log Which two statements are true?

A. It skips all indexes of ORCL:SH and in both ORCL:SH and TESTDB:HR.
B. It drops and re-creates tables that exist in both ORCL:SH and TESTDB:HR.
C. It skips only indexes that exist in both ORCL:SH and TESTDB:HR.
D. It skips only tables that exist in ORCL:SH and ORCL:OE.
E. It drops and re-creates indexes that exist in both ORCL:SH and TESTDB:HR.

Answer: A,B

Explanation:
A .False. EXCLUDE=index skips all indexes, not re-creates them.
B .False. TABLE_EXISTS_ACTION=replace drops and re-creates tables.
C .True. EXCLUDE=index omits all indexes from import.
D .True. replace drops and re-creates existing tables.
E .False. Skips all indexes, not just overlapping ones.

NEW QUESTION # 49
Which statement is true about database links?

A. A public database link can be created only by SYS.
B. Private database link creation requires the same user to exist in both the local and the remote databases.
C. A database link can be created only between two Oracle databases.
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.
E. 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.

Answer: E

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 # 50
In one of your databases, the user HR has the password HRMGR. You want to connect to a database instance whose listener listens on port 1531 by using this statement: CONNECT HR/HRMGR@orcl. No name server is used. Which statement is true about ORCL?

A. It must be the name of the server running the database to whose instance HR wishes to connect.
B. It must be the value of the SERVICE_NAMES parameter on the client side.
C. It must be the name of the database to whose instance HR wishes to connect.
D. It must resolve to a valid connect descriptor in the server's tnsnames.ora file.
E. It must resolve to a valid connect descriptor in the client's tnsnames.ora file.

Answer: E

Explanation:
A .False. ORCL is a TNS alias, not necessarily the DB name.
B .True. Must map to a connect descriptor (e.g., HOST=... PORT=1531) in tnsnames.ora.
C .False. It's not the server name but a network alias.
D .False. Client-side tnsnames.ora is used, not server-side.
E .False. SERVICE_NAMES is server-side, not client-side.

NEW QUESTION # 51
You unplugged a PDB to plug it into another CDB with the following command: SQL> ALTER PLUGGABLE DATABASE pdb1 UNPLUG INTO '/tmp/pdb1.pdb'; Which statement is true prior to plugging the PDB into the other CDB?

A. The PDB archive file must be copied to the target CDB.
B. PDB archive file and only the user-defined tablespaces must be copied to the target CDB.
C. The PDB manifest, the data files, and the PDB archive file must be copied to the target CDB.
D. The PDB manifest and all the datafiles must be copied to the target CDB.

Answer: C

Explanation:
D .True. The .pdb file (archive) contains the manifest and data files; all must be copied to the target CDB for plugging.
A-C .False. The archive alone isn't enough; all components are needed.

NEW QUESTION # 52
......

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EXAM 1Z1-182 CRAM - STUDY 1Z1-182 PLAN

Exam 1Z1-182 Cram - Study 1Z1-182 Plan