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Oracle 1z0-1093-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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.

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

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.

Oracle Cloud Database Services 2025 Professional Sample Questions (Q20-Q25):

NEW QUESTION # 20
In comparing NoSQL databases with relational databases, what constitutes a fundamental difference in their approach to data relationships?

A. Relational databases offer no mechanism for defining relationships between different data sets.
B. NoSQL databases universally lack the ability to represent relationships between data elements.
C. Relational databases primarily rely on foreign keys to define relationships, while NoSQL databases often embed related data within a single document or use application-level links.
D. NoSQL databases exclusively use foreign keys to establish relationships, similar to relational database models.

Answer: C

Explanation:
B: Relational vs. NoSQL data relationships:
* Relational Databases:Useforeign keysto establish relationships between tables, maintaining referential integrity.
* NoSQL Databases:Typically do not enforce relationships through foreign keys. Instead, they:
* Embed related datawithin a single document (common in document stores like MongoDB).
* Useapplication-level joinsto link related data (common in key-value or column-family stores).
* Graph databases (a type of NoSQL) useedgesto explicitly represent relationships between nodes.
* This difference highlights theflexibility vs. consistencytrade-off between NoSQL and relational databases.
Why the other options are incorrect:
* A. NoSQL databases lack relationships:Incorrect; they handle relationships differently.
* C. NoSQL using foreign keys exclusively:NoSQL databases generally do not enforce such relationships.
* D. Relational databases lack relationship mechanisms:Incorrect as relational databases are designed around relationships.

NEW QUESTION # 21
Which two tools can you use to create a HeatWave MySQL Database Service System?

A. OCI SQL Developer
B. OCI Bastion Server
C. MySQL Shell on OCI Compute
D. OCI Command Line Interface
E. OCI Console

Answer: D,E

Explanation:
OCI Console:
The Oracle Cloud Infrastructure Console is the primary graphical interface for creating and managingMySQL HeatWave Database Service Systems. It provides a user-friendly environment for configuring database instances and integrating HeatWave.
OCI CLI:
The OCI Command Line Interface allows for automation and scripting of database service creation. It is useful when managing multiple instances or performing bulk operations.
Why the other options are incorrect:
* C:OCI Bastion Server is used for secure SSH access, not for database creation.
* D:MySQL Shell is a client tool for interacting with databases, not for provisioning them.
* E:OCI SQL Developer is a database management tool, not a service provisioning tool.

NEW QUESTION # 22
Which of the following is a proactive strategy to avoid encountering table rate limits in Oracle NoSQL Database Cloud Service?

A. Carefully designing the table schema and indexes to optimize query performance and minimize the number of read/write operations required.
B. Consolidating all data into a single large table to simplify management.
C. Regularly increasing the table's storage capacity to accommodate future growth.
D. Disabling data encryption to reduce the overhead of read/write operations.

Answer: A

Explanation:
B: Optimizing schema and indexes:
* Efficient schema design reduces the number of read/write operations.
* Proper indexing reduces the need to scan large data volumes, minimizing the number of read capacity units (RCUs) consumed.
* This proactive approach helps stay within the provisioned rate limits, avoiding throttling.
Why the other options are incorrect:
* A. Increasing storage capacity:Does not address the rate of operations, only storage volume.
* C. Disabling encryption:Unwise due to security risks and does not significantly impact rate limits.
* D. Consolidating data into one table:Likely increases the rate of operations, worsening the problem.

NEW QUESTION # 23
How does the HeatWave Lakehouse capability extend the analytical capabilities of MySQL HeatWave?

A. By automatically replicating the MySQL database to a disaster recovery site.
B. By providing a built-in ETL (Extract, Transform, Load) tool for data integration.
C. By providing a graphical user interface for managing the MySQL database.
D. By enabling HeatWave to query data directly from object storage (e.g., Oracle Cloud Infrastructure Object Storage, Amazon S3) in various formats without requiring data loading.
E. By creating a separate data warehouse in the cloud to store historical data.

Answer: D

Explanation:
B: Querying data directly from object storage without data loading:
* HeatWave Lakehouse extends MySQL HeatWave by allowing direct query execution on data stored in external object storage.
* Supports formats such asCSV,Parquet, andAvro.
* Eliminates the need for data import, making the process faster and more efficient for large datasets.
* Enhances HeatWave's capability to act as aLakehouseby unifying data warehousing and data lake functionalities.
Why the other options are incorrect:
* A. GUI for database management:Not related to analytical extension.
* C. Disaster recovery replication:Not related to Lakehouse functionality.
* D. Built-in ETL tool:Lakehouse focuses on query capability, not ETL.
* E. Separate data warehouse:HeatWave Lakehouse queries data in-place, not creating a separate warehouse.

NEW QUESTION # 24
When provisioning an Oracle Cloud Infrastructure (OCI) Base Database Service (BaseDB) on a virtual machine (VM), what is a primary factor that distinguishes it from using a Bare Metal database service?

A. The ability to create multiple database homes on a single server.
B. The database software binaries are always pre-installed.
C. The ability to choose your own hypervisor for virtualization.
D. The underlying hardware is dedicated solely to your instance.

Answer: D

Explanation:
Primary Distinction:
The primary difference betweenBaseDB on a VMandBare Metalis how the underlying hardware is allocated:
* BaseDB on VM:The infrastructure issharedamong multiple tenants, using virtualization to isolate instances.
* Bare Metal Database Service:The server'sphysical hardware is dedicatedexclusively to a single tenant, offeringmaximum performance and isolation.
* This exclusive access to hardware in Bare Metal allows forbetter performanceand control compared to VM-based instances.
Why the other options are incorrect:
* A:Binaries are not always pre-installed in both cases; it depends on the configuration.
* B:Oracle handles hypervisor configuration, not the user.
* D:Both VM and Bare Metal allow multiple database homes if configured properly.

NEW QUESTION # 25
......

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