1z0-1093-25 Exam Simulation: Oracle Cloud Database Services 2025 Professional & 1z0-1093-25 Training Materials

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Oracle 1z0-1093-25 Exam Syllabus Topics:

Topic	Details
Topic 1	Exadata Database Service (ExaDB): This section of the exam measures the skills of a Database Infrastructure Engineer and focuses on the advanced Exadata Database Service. It includes the provisioning of Exadata systems, management of Exadata Cloud Infrastructure, and VM Cluster administration. It also evaluates knowledge of lifecycle management tasks and how to interact with various Exadata management utilities and interfaces.
Topic 2	Oracle Cloud Infrastructure Database Management Service: This section of the exam measures the skills of a Cloud Operations Analyst and provides insight into Oracle’s Database Management Service on OCI. It focuses on enabling the service for databases, monitoring their performance, and performing diagnostic and tuning activities. It also covers tasks related to the administration of databases running on Oracle Cloud Infrastructure.
Topic 3	Base Database Service - VM (BaseDB): This section of the exam measures the skills of a Cloud Database Administrator and covers the foundational elements of Oracle’s Base Database Service. It includes understanding what the BaseDB service is, how to provision and manage it, and lifecycle operations such as backups, recovery, patching, and upgrades. It also tests familiarity with monitoring and management interfaces used to control and observe the BaseDB environment.
Topic 4	NoSQL Database Service Technical Overview: This section of the exam measures the skills of a NoSQL Developer and explores Oracle’s NoSQL Database Service. It includes understanding the basics of NoSQL architecture, handling table-level security, rate limiting, and data modeling. It also covers concepts like provisioned throughput and the usage of language SDKs for interacting with NoSQL services on Oracle Cloud.
Topic 5	MySQL HeatWave Technical Overview: This section of the exam measures the skills of a MySQL Cloud Specialist and introduces MySQL HeatWave, Oracle’s high-performance analytics engine for MySQL. It includes provisioning, migrating existing MySQL databases to HeatWave, and working with its analytical and machine-learning capabilities. It also covers day-to-day operational activities within the MySQL HeatWave environment.

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q53-Q58):

NEW QUESTION # 53
In a BaseDB environment configured with automatic backups, what happens to the automatic backups when the DB system is terminated?

A. The most recent automatic backup is retained, while older backups are deleted.
B. Automatic backups are migrated to a lower-cost archive storage tier.
C. All automatic backups are immediately and permanently deleted from object storage.
D. All automatic backups are retained in object storage for a period determined by the original backup retention policy.
E. The retention of automatic backups after DB system termination is configurable during DB system creation.

Answer: D

Explanation:
Backup Retention Policy:
When aBaseDB system is terminated, automatic backups are not immediately deleted. Instead, they remain stored inOCI Object Storagefor the duration specified by thebackup retention policythat was configured at the time of database creation.
* This approach ensures that data can be recovered even after the database instance itself is terminated.
* Administrators can manually delete backups if they are no longer needed, but they arenot automatically purged.
Why the other options are incorrect:
* A:Backups are not deleted instantly upon termination.
* B:All backups are retained as per the policy, not just the most recent.
* D:No automatic migration to archive tier occurs.
* E:Backup retention settings are defined during provisioning, but not dynamically configurable after termination.

NEW QUESTION # 54
During the provisioning of a Base Database Service (BaseDB) virtual machine (VM), what is the significance of the "Compute Shape" selection?

A. It determines the maximum number of databases that can be created on the VM.
B. It defines the CPU, memory, and network bandwidth allocated to the VM.
C. It specifies the pre-installed database software version.
D. It dictates the availability domain in which the VM will be created.

Answer: B

Explanation:
C: Defines CPU, memory, and network bandwidth:
* TheCompute Shapespecifies the resources allocated to the VM.
* Shapes vary in the number ofOCPUs, amount ofRAM, andnetwork performance.
* Selecting an appropriate shape ensures the database has enough computational power and memory to meet workload demands.
Why the other options are incorrect:
* A. Number of databases:Limited by storage and resource capacity, not the shape itself.
* B. Availability domain:Chosen separately during provisioning.
* D. Pre-installed software version:The shape does not determine the database version.

NEW QUESTION # 55
What is the PRIMARY benefit of using Recovery Manager (RMAN) with block change tracking enabled in a BaseDB environment for incremental backups?

A. It eliminates the need for full backups.
B. It allows for point-in-time recovery to any SCN (System Change Number) without restoring a full backup.
C. It significantly reduces the time required for incremental backups by only backing up changed blocks.
D. It automatically encrypts all backups with a user-defined key.
E. It automatically validates the integrity of full backups during the backup process.

Answer: C

Explanation:
Block Change Tracking (BCT):
Enabling BCT withRMANsignificantly speeds upincremental backupsby recording changes made to data blocks since the last backup. Instead of scanning the entire database to detect changes, RMAN consults the block change tracking fileto identify modified blocks, reducing backup time and I/O.
BCT is especially beneficial in large databases where full backups would be time-consuming and resource- intensive. Incremental backups become more efficient, makingdaily or more frequent backups feasible.
Why the other options are incorrect:
* A:Full backups are still required periodically.
* C:Encryption is separate from BCT functionality.
* D:Point-in-time recovery is facilitated by backup logs, not BCT directly.
* E:Integrity checks are performed during validation, not as part of BCT.

NEW QUESTION # 56
Which of the following best describes the primary purpose of table rate limiting within Oracle NoSQL Database Cloud Service?

A. To enforce strict data consistency across all table partitions, ensuring ACID compliance.
B. To prevent a single table from consuming excessive resources, ensuring fair allocation and preventing performance degradation for other tables and users.
C. To automatically optimize table schema design for improved query performance.
D. To restrict the total amount of storage space a table can consume.

Answer: B

Explanation:
Table Rate Limiting:
Table rate limiting ensures that no single table monopolizes system resources, maintainingoverall stability and performancein a multi-tenant environment. This feature is crucial for cloud services where numerous applications may share the same database infrastructure. It helps maintain fair access by capping the number of read/write operations per second.
Why the other options are incorrect:
* A:ACID compliance is achieved through consistency settings, not rate limiting.
* C:Schema optimization is not related to rate limiting.
* D:Rate limiting controls IOPS (Input/Output Operations Per Second), not storage space.

NEW QUESTION # 57
In the context of BaseDB Database Lifecycle Management, what is the primary purpose of a "pre-check" utility before applying a patch or upgrading the database?

A. To migrate data to a different storage tier.
B. To install the patch or upgrade in a test environment for validation.
C. To automatically back up the database before the patch or upgrade.
D. To determine if the patch or upgrade is compatible with the existing database environment and identify potential conflicts.
E. To optimize the database performance after the patch or upgrade.

Answer: D

Explanation:
Purpose of Pre-Check Utility:
Thepre-check utilityin BaseDB ensures that thedatabase environment is readyfor the upcoming patch or upgrade. It checks for:
* Compatibility issueswith the existing software and configurations.
* Resource availability(like CPU, memory, and storage).
* Dependencies and prerequisitesneeded for a successful upgrade.By identifying potential conflicts in advance, pre-checksminimize the risk of upgrade failuresand reduce downtime.
Why the other options are incorrect:
* A:Backup is a separate process.
* C:Pre-check does not install or validate in a test environment.
* D:Performance optimization happens post-upgrade.
* E:Data migration is unrelated to the pre-check process.

NEW QUESTION # 58
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1z0-1093-25 Exam Simulation: Oracle Cloud Database Services 2025 Professional & 1z0-1093-25 Training Materials

Oracle 1z0-1093-25 Exam Syllabus Topics:

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q53-Q58):

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