PASS GUARANTEED QUIZ ORACLE - VALID 1Z0-1093-25 - ORACLE CLOUD DATABASE SERVICES 2025 PROFESSIONAL EXAM SIMULATOR FREE

Pass Guaranteed Quiz Oracle - Valid 1z0-1093-25 - Oracle Cloud Database Services 2025 Professional Exam Simulator Free

Pass Guaranteed Quiz Oracle - Valid 1z0-1093-25 - Oracle Cloud Database Services 2025 Professional Exam Simulator Free

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q77-Q82):

NEW QUESTION # 77
Which statement BEST describes the primary architectural distinction between Exadata Database Service and a traditional Oracle Database deployed on virtual machines in the cloud?

  • A. Exadata Database Service uses a completely different SQL parsing engine compared to a traditional Oracle Database.
  • B. Exadata Database Service utilizes only virtualized compute nodes, while traditional deployments use bare metal.
  • C. Exadata Database Service integrates specialized, high-performance storage servers and a high- bandwidth, low-latency RDMA over Converged Ethernet (RoCE) network, optimized for database workloads, which are not present in typical cloud VM deployments.
  • D. Exadata Database Service exclusively supports Oracle RAC, while traditional cloud deployments can support both single-instance and RAC databases.

Answer: C

Explanation:
Exadata's Unique Architecture:
Exadata Database Service is engineered specifically for Oracle Database workloads. The architecture leverages specialized storage servers that performdata-intensive operations at the storage level(such as filtering and aggregation), reducing the amount of data sent to the compute nodes.
TheRoCE network(RDMA over Converged Ethernet) provides high-bandwidth, low-latency connectivity between compute and storage nodes, significantly enhancing I/O performance. This architecture is optimized for bothOLTP and OLAP workloads, making Exadata a superior choice for performance-critical applications.
Why the other options are incorrect:
* A:Exadata combines both virtualized and bare metal compute nodes.
* C:Both Exadata and traditional cloud deployments can support Oracle RAC, but Exadata is optimized for it.
* D:Exadata uses the same Oracle Database SQL parsing engine; the difference lies in the optimized hardware.


NEW QUESTION # 78
When migrating to MySQL HeatWave on Oracle Cloud Infrastructure (OCI), what is the recommended method for securely transferring large database backups?

  • A. Using the Oracle Cloud Infrastructure Data Transfer Service with physical storage appliances.
  • B. Creating a secure VPN connection and transferring the backup files using scp.
  • C. Use of Data Pump with a database link.
  • D. Shipping physical hard drives containing the backup files to the OCI data center.
  • E. Transferring the backup files directly over the public internet using FTP.

Answer: A

Explanation:
Secure Transfer with OCI Data Transfer Service:
TheOCI Data Transfer Serviceis designed to securely transfer large datasets, including database backups, to the cloud. It involves:
* Using physical storage appliancesto copy data locally and then shipping these devices to OCI data centers.
* Data isencrypted and securely transported, minimizing the risks associated with online transfers.
* This method is cost-effective and practical forterabytes or petabytes of data, avoiding bandwidth limitations and reducing transfer time.
Why the other options are incorrect:
* A:FTP over the public internet is insecure and slow.
* B:Physical hard drives without encryption and secure handling increase data breach risks.
* D:SCP over VPN is secure but impractical for extremely large datasets.
* E:Data Pump is useful for database-to-database transfers, not large file migrations.


NEW QUESTION # 79
When upgrading the Oracle Database software version on a BaseDB VM system, what is the primary responsibility of the database administrator (DBA) regarding the underlying operating system?

  • A. The DBA has no direct responsibility for the operating system as it is fully managed by Oracle Cloud Infrastructure.
  • B. The DBA is responsible for initiating and managing the operating system upgrade process through the Oracle Cloud Infrastructure console.
  • C. The DBA should manually update the operating system packages after the database upgrade is successfully completed.
  • D. The DBA must ensure the operating system is compatible with the target Oracle Database software version before initiating the database upgrade.

Answer: D

Explanation:
Responsibility of DBA:
Before upgrading the Oracle Database software on aBaseDB VM system, the DBA must verify that the underlying operating system versionis compatible with the new database software version. This is crucial because Oracle Database upgrades may introduce new requirements or dependencies.
The DBA needs to check theOracle Database Upgrade Guideand theOracle Validated Configurationsto ensure compatibility. Upgrading without this validation could lead to compatibility issues, failed upgrades, or reduced performance.
Why the other options are incorrect:
* A:OCI manages the infrastructure, but the DBA must ensure compatibility.
* C:While OCI manages the OS patching, ensuring compatibility is still a DBA responsibility.
* D:OS updates should be addressed before the database upgrade, not afterward.


NEW QUESTION # 80
Which BaseDB lifecycle management activity is MOST directly associated with ensuring the continued availability of a database instance during a planned maintenance window?

  • A. Performing an in-place upgrade of the database software.
  • B. Taking a full database backup using RMAN.
  • C. Applying a quarterly security patch.
  • D. Resizing the block volume storage.
  • E. Using Oracle Data Guard for a switchover operation.

Answer: E

Explanation:
C: Using Oracle Data Guard for a switchover operation:
* Aswitchoveris a planned role reversal between the primary and standby databases.
* Zero data loss:Since both databases are synchronized, it minimizes downtime.
* Ideal for planned maintenance:The primary database is switched to the standby, allowing maintenance on the original primary without downtime.
* Data Guard Switchover:
sql
CopyEdit
ALTER DATABASE SWITCHOVER TO standby_db;
Why the other options are incorrect:
* A. Full backup with RMAN:Backup does not ensure availability during maintenance.
* B. In-place upgrade:Typically involves downtime.
* D. Quarterly patch:Patching often requires database restarts, causing downtime.
* E. Resizing block volume:Does not maintain availability if the database requires restarting.


NEW QUESTION # 81
You need to monitor the data loading process into your HeatWave cluster to ensure optimal performance.
Which OCI service provides the most detailed information on data loading operations and potential bottlenecks?

  • A. OCI Monitoring with HeatWave specific metrics
  • B. OCI Service Connector Hub
  • C. OCI Streaming
  • D. OCI Functions
  • E. OCI Notifications

Answer: A

Explanation:
C: OCI Monitoring with HeatWave specific metrics:
* OCI Monitoring collects and visualizes detailed metrics related to HeatWave cluster operations.
* Key metrics include:
* Data load throughput
* Data load latency
* Memory and CPU utilization
* These metrics help identify bottlenecks during data loading, allowing for proactive performance tuning.
* Integrates withOCI Alarmsto notify administrators when thresholds are breached.
Why the other options are incorrect:
* A. OCI Notifications:Sends alerts but does not collect performance metrics.
* B. OCI Service Connector Hub:Moves data between services but does not provide direct performance insights.
* D. OCI Streaming:Used for real-time data ingestion, not specifically for HeatWave monitoring.
* E. OCI Functions:Executes serverless functions, not related to HeatWave metrics.


NEW QUESTION # 82
......

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