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1z0-1093-25 Standard Answers - Pass Guaranteed 2025 1z0-1093-25: Oracle Cloud Database Services 2025 Professional First-grade Reliable Exam Vce

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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

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 3

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 4

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 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 (Q28-Q33):

NEW QUESTION # 28
Which two of the following options are valid statements regarding the management of the operating system on a Base Database Service Virtual Machine DB System?

A. Direct SSH access to the underlying VM is restricted, and all OS-level operations must be performed through the Web Console.
B. Customers are responsible for the security and maintenance of the operating system, including applying necessary patches and updates.
C. Customers are responsible for the initial OS installation, but then patching is controlled entirely by Oracle.
D. Oracle manages the underlying operating system patching and updates, ensuring the system remains secure and compliant.
E. Customers have full root access to the underlying operating system of the Virtual Machine DB System, allowing for customization and installation of custom software.

Answer: B,E

Explanation:
B: Full root access:
* Customers have root-level access to manage the OS, install custom software, and configure settings.
* This provides flexibility to meet specific application requirements.
D: Responsibility for OS security:
* With root access, customers must manage OS security, including updates and patches.
* Oracle provides tools to facilitate patching, but the responsibility lies with the customer.
Why the other options are incorrect:
* A. Restricted SSH access:SSH access is allowed for VM DB systems.
* C. Oracle-managed OS patching:Oracle does not automatically patch the OS; this is a customer responsibility.
* E. Initial OS installation by customers:The OS is pre-installed, but ongoing maintenance is customer- driven.

NEW QUESTION # 29
Which two requirements must be met first to create an Exadata Database Service Instance?

A. You need to define the VCN, Private Client subnet, and Private Backup subnet.
B. There are no prerequisites for creating an Exadata Database Service instance.
C. You only need a VCN and Universal Cloud Credits.
D. You need to create an Exadata Infrastructure and VM Cluster resource.
E. You need to define the VCN, Private Client subnet, and Service Backup subnet.

Answer: A,D

Explanation:
C: Define VCN, Private Client subnet, and Private Backup subnet:
* These network components are necessary to ensure secure connectivity and backup configurations.
* TheVCN (Virtual Cloud Network)provides network isolation.
* ThePrivate Client subnetenables secure client connections.
* ThePrivate Backup subnetis required for secure access toOCI Object Storagefor backups.
E: Create Exadata Infrastructure and VM Cluster resource:
* Exadata Infrastructure represents the physical hardware.
* VM Cluster resource defines compute and storage resources for the databases.
* Both must be set up before provisioning the actual database instance.
Why the other options are incorrect:
* A. VCN and Universal Cloud Credits:Insufficient; more configuration is needed.
* B. Service Backup subnet:Incorrect, it should be aPrivate Backup subnet.
* D. No prerequisites:Incorrect; prerequisites include both network and infrastructure setup.

NEW QUESTION # 30
Oracle NoSQL Database Cloud Service's key-value model is well-suited for certain types of applications.
Which of the following application scenarios would most directly benefit from the key-value data model's characteristics?

A. A content management system needing to enforce a rigid schema for all documents and their metadata.
B. A social media platform needing to store and retrieve individual user profiles and their associated data quickly.
C. A financial system requiring strict transactional integrity and complex relationships between accounts and transactions.
D. An application requiring complex analytical queries and joins across multiple related datasets.
E. An enterprise resource planning (ERP) system managing intricate relationships between various business entities.

Answer: B

Explanation:
B: Social Media Platform:
* Social media applications require quick retrieval of user profiles based on unique IDs.
* The key-value model supports fast lookups and simple data associations, ideal for user-centric data.
* The flexibility of storing user attributes in a single document enhances performance and scalability.
Why the other options are incorrect:
* A. Complex analytical queries:Relational or analytical databases are better suited.
* C. Financial systems:Require ACID compliance and complex joins, not suitable for key-value models.
* D. Content management:Typically requires a more structured approach, better handled by document databases.
* E. ERP systems:Need relational integrity and complex schema support.

NEW QUESTION # 31
Which of the following components is responsible for automatically offloading suitable queries from MySQL to the HeatWave accelerator?

A. HeatWave AutoPilot
B. Oracle Cloud Infrastructure (OCI) Load Balancer
C. MySQL Query Optimizer
D. MySQL Router
E. MySQL Shell

Answer: C

Explanation:
A: MySQL Query Optimizer:
* TheMySQL Query Optimizerdetermines whether a query can benefit from HeatWave's in-memory, columnar processing.
* If a query is deemed suitable, it is automatically offloaded to the HeatWave cluster.
* This process significantly improves the execution speed of complex analytical queries.
Why the other options are incorrect:
* B. HeatWave AutoPilot:Manages workload optimization but does not directly offload queries.
* C. MySQL Router:Manages connection routing, not query offloading.
* D. MySQL Shell:Primarily used for administrative tasks, not query optimization.
* E. OCI Load Balancer:Manages network traffic distribution, unrelated to database query processing.

NEW QUESTION # 32
Which database lifecycle management operation in BaseDB requires the creation of a new database home and is non-reversible after completion?

A. Upgrading the Oracle Database software version.
B. Enabling Automatic Storage Management (ASM).
C. Upgrading the Oracle Grid Infrastructure.
D. Applying an operating system patch.
E. Scaling the compute shape of the VM.

Answer: A

Explanation:
Database Software Upgrade:
When upgrading theOracle Database software versionon aBaseDB VM, a newOracle Homeis created to house the upgraded software. Once the database is moved to this new home, the process isnot easily reversible.
* Rolling back would requiredowngrading, which is a complex and risky process.
* The new Oracle Home ensures that the upgraded database environment isisolated from the previous version, preventing compatibility conflicts.
Why the other options are incorrect:
* A:Grid Infrastructure upgrades can be managed independently of the database upgrade.
* B:Scaling VMs is a reversible operation.
* D:OS patches do not impact the Oracle Home directly.
* E:ASM configuration changes are reversible.

NEW QUESTION # 33
......

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