Oracle Updated 1z0-1093-25 Exam Questions and Answers by elif

Performance Hub Real-Time SQL Monitoring:

ThePerformance Hubin Oracle Database Management provides detailed real-time monitoring of SQL queries, including:

Physical Reads (A):Measures the number of physical I/O operations performed by a SQL statement.

Average Active Sessions (B):Reflects the number of sessions actively performing database operations, giving insights into workload and bottlenecks.

These metrics help database administratorsanalyze query performanceand detect issues in real-time.

Why the other options are incorrect:

C:Number of CPUs is a hardware metric, not part of SQL monitoring.

D:Database version is static information, not a performance metric.

B. Manual patching for GI and ASM:

In auser-managed environment, the DBA is responsible for downloading and applying patches forGrid Infrastructure (GI)andAutomatic Storage Management (ASM).

These patches are distinct fromdatabase patchesand need to be applied using tools likeopatchorOracle Universal Installer (OUI).

The process involves:

Downloading the patch from Oracle Support.

Staging the patch on the server.

Applying the patch using the appropriate commands.

Why the other options are incorrect:

A. Fully automated by OCI:OCI does not automatically patch GI and ASM in user-managed environments.

C. Integrated with database patching:GI and ASM patching is handled separately.

D. Required only during OS upgrade:Incorrect, as patching is required independently for security and stability.

Full Backup with bkup_api:

The --full flag in thebkup_api commandensures that the backup includesall datafiles and control files. This command is essential for creating acomplete, consistent backupsuitable for recovery purposes.

The backup is stored inOCI Object Storage, leveraging cloud scalability and redundancy.

The --dbname parameter specifies which database to back up.

Why the other options are incorrect:

A:This command may initiate a default backup, not a full one.

B:Specifying files individually is less efficient than using --full.

D:The --all option does not necessarily imply a full backup.

C. MySQL Shell Upgrade Checker Utility:

The utility analyzes MySQL instances for compatibility with newer versions, such as MySQL 8.0 used by HeatWave.

It checks for:

Syntax differences

Data type mismatches

Deprecated features

The tool outputs a report highlighting issues that may impact migration to HeatWave.

Why the other options are incorrect:

A. MySQL Enterprise Monitor:Focuses on monitoring performance, not compatibility.

B. Oracle SQL Developer:Primarily used for database development, not upgrade checks.

D. Oracle Cloud Advisor:Provides cloud optimization recommendations, not MySQL compatibility checks.

E. MySQL Workbench:A visual tool for database design and administration, not specifically for upgrade assessment.