[2026] Use Valid New 1Z1-183 Test Notes & 1Z1-183 Valid Exam Guide
1Z1-183 Actual Questions Answers PDF 100% Cover Real Exam Questions
NEW QUESTION # 26
When creating a new PDB from PDB$SEED, which two options can you specify?
(Choose two)
- A. Custom administrative user and password
- B. Automatic upgrade scripts execution for backward compatibility
- C. Separate undo tablespace per PDB by default
- D. File name conversion for datafiles
Answer: A,D
NEW QUESTION # 27
What differentiates active database duplication from backup-based duplication in RMAN?
- A. Active duplication requires a recovery catalog; backup-based duplication does not
- B. Active duplication copies data over the network directly from the source instance
- C. Backup-based duplication cannot use compression
- D. Active duplication requires no listener configuration
Answer: B
NEW QUESTION # 28
Which two tuning actions help reduce SQL execution cost?
(Choose two)
- A. Disable SQL plan baselines
- B. Disable adaptive query optimization
- C. Gather optimizer statistics regularly
- D. Use bind variables instead of literals
Answer: C,D
NEW QUESTION # 29
Which two features are supported by AutoUpgrade?
(Choose two)
- A. Pre-upgrade checks and automated fixups
- B. Multiple database upgrades in a single job
- C. RMAN block change tracking disablement
- D. Automated SQL Tuning Advisor task generation
Answer: A,B
NEW QUESTION # 30
What is the primary purpose of an Automatic Workload Repository (AWR) baseline?
- A. To define a reference workload for comparing performance over time
- B. To schedule automatic database backups
- C. To enable flashback database functionality
- D. To store SQL Plan Baselines for specific queries
Answer: A
NEW QUESTION # 31
Which two steps are mandatory when transporting tablespaces across platforms with different endian formats?
(Choose two)
- A. Export/import the control file with Data Pump
- B. Make tablespaces READ ONLY before backup
- C. Recreate redo log files on target platform
- D. Use RMAN CONVERT TABLESPACE to transform datafiles
Answer: B,D
NEW QUESTION # 32
How does enabling the In-Memory Column Store improve analytic query performance?
- A. By converting tables to columnar format in memory, accelerating scans and aggregations
- B. By storing all tables in row format for faster transactional access
- C. By automatically converting redo logs into analytical indexes
- D. By eliminating the need for indexes entirely
Answer: A
NEW QUESTION # 33
Why must the RESETLOGS option be used when opening a database after incomplete recovery?
- A. It creates a new incarnation of the database and resets the redo sequence
- B. It bypasses datafile header checks
- C. It merges temporary and permanent tablespaces
- D. It preserves the SCN for the next recovery
Answer: A
NEW QUESTION # 34
What differentiates an Application PDB from a regular PDB in Oracle 23ai multitenant architecture?
- A. Application PDBs require dedicated listener processes
- B. Application PDBs share a common application root that enables simplified patching and upgrades
- C. Application PDBs automatically inherit all common users from all other PDBs
- D. Application PDBs cannot host schemas or objects
Answer: B
NEW QUESTION # 35
Which feature of Oracle Database 23ai helps reduce the cost of SQL operations by caching frequently executed query results?
- A. Adaptive Cursor Sharing
- B. SQL Plan Baseline Evolution
- C. Result Cache
- D. SQL Plan Management (SPM)
Answer: C
NEW QUESTION # 36
Which step is required when creating a Container Database (CDB) using Database Configuration Assistant (DBCA) with the intention to host multiple Pluggable Databases (PDBs)?
- A. Disable Oracle Managed Files to manually configure datafiles
- B. Select the "Create as Container Database" option and specify the number of PDBs
- C. Create separate SYSTEM tablespaces for each seed database
- D. Skip root and seed creation to save space for future PDBs
Answer: B
NEW QUESTION # 37
Which tool is typically used to perform an Oracle Grid Infrastructure installation for a standalone server?
- A. Net Configuration Assistant
- B. DBCA
- C. Oracle Universal Installer (OUI)
- D. Oracle Restart Configurator
Answer: C
NEW QUESTION # 38
Which two actions are required before unplugging a PDB for transport to another CDB?
(Choose two)
- A. Execute DBMS_PDB.CHECK_PLUG_COMPATIBILITY on the source CDB
- B. Ensure the PDB is opened in READ WRITE mode
- C. Close the PDB and generate its XML metadata file
- D. Run ALTER PLUGGABLE DATABASE DISCARD TEMPFILE to clean tempfiles
Answer: A,C
NEW QUESTION # 39
Which two statements are true about PDB lifecycle management?
(Choose two)
- A. MOUNT is the default state when a PDB is created
- B. Dropping a PDB can optionally keep its datafiles for reuse
- C. PDB$SEED can be opened in READ WRITE mode for patching
- D. PDB states are persisted automatically without explicit SAVE STATE
Answer: A,B
NEW QUESTION # 40
Which view provides a high-level summary of database wait events for identifying performance bottlenecks?
- A. V$SESSION_EVENT
- B. V$SYSSTAT
- C. V$SYSTEM_EVENT
- D. V$SQL_PLAN
Answer: C
NEW QUESTION # 41
What is the recommended approach for tuning the buffer cache size?
- A. Use Automatic Memory Management (AMM) or Automatic Shared Memory Management (ASMM) to let Oracle manage memory dynamically
- B. Disable automatic memory management and use manual tuning only
- C. Increase cache size until the library cache hit ratio exceeds 99%
- D. Increase DB_BLOCK_SIZE for better caching
Answer: A
NEW QUESTION # 42
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