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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

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 4

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 5

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.

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q84-Q89):

NEW QUESTION # 84
Which two actions must you undertake when configuring the networking to provide network connectivity for a MySQL HeatWave DB System instance?

A. Deploy the MySQL HeatWave DB System to a public subnet to allow external connectivity for users.
B. Configure a dynamic routing gateway for inter-VCN connectivity.
C. Create ingress security rules in the VCN security list or Network Security Groups (NSGs) to allow traffic to the MySQL HeatWave DB System.
D. Create egress security rules in the VCN security list or Network Security Groups (NSGs) to block access from the MySQL HeatWave DB System to any outside network.
E. Ensure the subnet used has a Service Gateway to Oracle Services, such as Object Storage, so that patching can be applied.

Answer: C,E

Explanation:
A: Service Gateway for Oracle Services:
* Ensures the HeatWave DB System can accessOracle Serviceslike Object Storage without using the public internet.
* Essential for tasks such aspatching and backups.
C: Ingress security rules:
* Allows necessary traffic to reach the HeatWave DB System.
* Typically, rules will permitMySQL port (3306)and anyapplication-specific ports.
* Configured usingVCN security lists or NSGs.
Why the other options are incorrect:
* B. Public subnet deployment:Exposes the database to the internet, which is a security risk.
* D. Dynamic routing gateway:Not mandatory unless inter-VCN connectivity is specifically required.
* E. Blocking egress entirely:Restricting all outbound traffic can prevent necessary updates and communication with Oracle services.

NEW QUESTION # 85
Which two of the following statements are true regarding security considerations for managingExadata Cloud Infrastructure and VM Clusters?

A. Customers are responsible for configuring and maintaining the security of the operating system and database software within the VM Clusters.
B. Customers have full access to the Exadata Infrastructure's hypervisor and can implement custom security policies.
C. Oracle manages all security aspects of the Exadata Infrastructure, relieving customers of any security responsibilities.
D. Network Security Groups (NSGs) can be used to control network traffic to and from VM Clusters, enhancing security.
E. Customers are responsible for configuring host-based firewalls on the Exadata Infrastructure to protect against unauthorized access.

Answer: A,D

Explanation:
B: Network Security Groups (NSGs) for traffic control:
* NSGs allow customers to defineingress and egress rulesto control network traffic.
* Enhances security by restricting access to only authorized IP ranges and protocols.
* Applied at theVM Clusterlevel to manage connectivity efficiently.
E: Responsibility for OS and database security:
* While Oracle manages the infrastructure layer, customers are responsible for securing theoperating system and databasewithin the VM Clusters.
* This includes applying security patches, configuring firewalls, and implementing user access controls.
Why the other options are incorrect:
* A. Host-based firewalls on Exadata Infrastructure:Oracle, not the customer, configures the infrastructure-level security.
* C. Oracle managing all security:Incorrect, as customers manage VM-level security.
* D. Access to hypervisor:Customers do not have hypervisor-level access for security configuration.

NEW QUESTION # 86
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 database software binaries are always pre-installed.
B. The underlying hardware is dedicated solely to your instance.
C. The ability to choose your own hypervisor for virtualization.
D. The ability to create multiple database homes on a single server.

Answer: B

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 # 87
Which statement accurately describes the inherent trade-offs often associated with choosing a NoSQL database over a traditional relational database?

A. NoSQL databases provide simplified querying capabilities using standard SQL, enhancing developer productivity and reducing the learning curve.
B. NoSQL databases universally guarantee stronger data consistency than relational databases, but at the expense of increased operational complexity.
C. NoSQL databases typically sacrifice strict data consistency (ACID) to gain horizontal scalability and higher availability.
D. NoSQL databases offer superior data integrity and reduced operational overhead compared to relational databases, making them ideal for transactional systems.

Answer: C

Explanation:
Trade-offs with NoSQL Databases:
NoSQL databases are designed toscale horizontallyby adding more nodes rather than scaling vertically by increasing hardware capacity. To achieve this scalability andhigh availability, NoSQL systems often adopt theBASE model(Basically Available, Soft state, Eventually consistent) rather than the strictACID model (Atomicity, Consistency, Isolation, Durability) typical of relational databases.
* This means thatdata consistencymay be relaxed (eventual consistency) to allow faster reads and writes.
* These characteristics make NoSQL suitable forlarge-scale, distributed systemsbut less ideal for applications requiringimmediate consistency, such as banking systems.
Why the other options are incorrect:
* A:NoSQL does not guarantee stronger consistency than relational databases.
* C:NoSQL typically does not offer superior data integrity for transactional workloads.
* D:SQL-based querying is usually not available in NoSQL, as they often have their own query mechanisms.

NEW QUESTION # 88
The concept of 'schema-less' in the context of NoSQL databases primarily refers to what?

A. Data is stored in a binary format, eliminating the need for any schema or data interpretation.
B. The database automatically infers the schema from the data being inserted, without requiring any explicit schema definition beforehand.
C. All data stored within the database must conform to a single, universally defined schema for consistency.
D. Data is stored in a highly structured format, mirroring the tabular structure of relational databases with predefined columns and data types.

Answer: B

Explanation:
Schema-less in NoSQL:
This means you don't need to define a rigid, fixed structure before data insertion. Each record can have its own structure, allowing flexibility for evolving data models. This is useful for unstructured or semi-structured data.
Why the other options are incorrect:
* B:This describes relational databases.
* C:This describes the structured nature of SQL databases.
* D:While binary formats may be used, schema-less refers to the logical, not physical, structure.

NEW QUESTION # 89
......

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