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  3. 1Z0-1093-25

Oracle 1Z0-1093-25 Exam (page: 1)
Oracle Cloud Database Services 2025 Professional
Updated on: 11-Nov-2025

Viewing Page 1 of 14
1Z0-1093-25 PDF 99 Questions

Which technology within the Exadata Database Service provides intelligent data offloading and processing capabilities directly within the storage tier?

  1. Oracle Data Guard
  2. Exadata Smart Scan
  3. Oracle Active Data Guard
  4. Exadata Smart Flash Cache

Answer(s): B

Explanation:

Exadata Smart Scan:

This technology is a core feature of Exadata storage servers. It allows the storage servers to perform data filtering, projection, and other processing tasks directly within the storage tier before sending the results to the database compute nodes. This significantly reduces the amount of data transferred over the network, leading to improved query performance.

Why the other options are incorrect:

A . Oracle Data Guard: Used for disaster recovery and high availability, not for in-storage processing.

C . Oracle Active Data Guard: Allows read-only access to a standby database, but doesn't provide in- storage processing.

D . Exadata Smart Flash Cache: Used for caching frequently accessed data in flash memory to improve I/O performance.
While it enhances performance, it does not provide intelligent data offloading and processing within the storage tier.


Reference:

Oracle Exadata Database Service Documentation



Which two requirements must be met before you can create an Exadata Database Service VM Cluster?

  1. A configured Oracle Cloud Infrastructure (OCI) Vault and Key.
  2. A Virtual Cloud Network (VCN) with necessary subnets for client access and backups.
  3. A valid support identifier (SI) associated with the OCI account.
  4. A configured Exadata Cloud@Customer infrastructure.
  5. An Exadata Infrastructure resource must be created first.

Answer(s): B,E

Explanation:

B . VCN and Subnets:

Exadata Database Service VM Clusters require a VCN to provide network connectivity for database instances, client access, and backups. Proper subnets are essential for this network setup.

E . Exadata Infrastructure Resource:

Before creating a VM Cluster, an Exadata Infrastructure resource must be provisioned. The VM Cluster resides within this infrastructure.

Why the other options are incorrect:

A: OCI Vault and Key are used for encryption but not mandatory for VM Cluster creation.

C: A valid SI is needed for support but not a technical requirement for VM cluster creation.

D: Exadata Cloud@Customer is a separate service from Exadata Database Service.


Reference:

Oracle Exadata VM Cluster Documentation



Which statement accurately describes the primary function of a NoSQL Database Cloud Service SDK?

  1. To define the physical storage layout of the database.
  2. To provide a programming interface for interacting with the database, abstracting away low-level API details.
  3. To manage the underlying infrastructure hosting the NoSQL database.
  4. To configure network security policies for accessing the database.

Answer(s): B

Explanation:

SDK Function:

An SDK simplifies database interaction by providing libraries and tools that abstract away the complexities of the underlying API. This allows developers to use familiar programming languages and constructs to interact with the database.

Why the other options are incorrect:

A: Physical storage layout is managed by the database service, not the SDK.

C: Infrastructure management is handled by cloud providers, not the SDK.

D: Network security policies are managed via OCI console or infrastructure tools, not the SDK.


Reference:

Oracle NoSQL Database Service Documentation



Which two statements accurately describe the relationship between Database Management and metrics collected in OCI Monitoring service?

  1. Database Management retrieves performance data exclusively from the OCI Monitoring service and does not directly query the database.
  2. Database Management directly queries the database for detailed performance data and supplements it with metrics from the OCI Monitoring service.
  3. Database Management's data collection is completely independent of the OCI Monitoring service.
  4. Database Management relies on custom metrics uploaded to OCI Monitoring by the user in order to provide its monitoring features.

Answer(s): B,C

Explanation:

B: Database Management directly queries the database to gather performance data, such as SQL performance and active session history. It also integrates with OCI Monitoring for infrastructure-level metrics like CPU, memory, and storage utilization.

C: Database Management can function independently of OCI Monitoring since it has its own data collection mechanisms.

Why the other options are incorrect:

A: Database Management does not rely solely on OCI Monitoring.

D: It does not require custom metrics from the user.


Reference:

Oracle Database Management Service Documentation



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

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

Answer(s): A

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.


Reference:

Oracle NoSQL Database Service Overview



Which statement best describes the principle of least privilege as it applies to table security management in Oracle NoSQL Database Cloud Service?

  1. Granting all users full administrative access to all tables to simplify management.
  2. Granting users only the minimum set of permissions required to perform their assigned tasks on specific tables.
  3. Encrypting all tables with the highest level of encryption, regardless of the sensitivity of the data.
  4. Regularly backing up all tables and storing the backups in a publicly accessible location.

Answer(s): B

Explanation:

Principle of Least Privilege:

The principle of least privilege states that users should only be granted the minimum permissions necessary to perform their tasks. This reduces the risk of accidental or malicious actions that could compromise data integrity or security.

In the context of Oracle NoSQL Database Cloud Service, implementing this principle involves configuring Identity and Access Management (IAM) policies to precisely define which users or groups can perform specific actions (such as read, write, delete) on particular tables. By limiting access, the system minimizes potential attack vectors and the impact of compromised accounts.

Why the other options are incorrect:

A: Granting full administrative access violates the least privilege principle and increases security risks.

C: Encryption is important, but it addresses data confidentiality, not access control.

D: Backing up data is good practice, but storing backups in a publicly accessible location is insecure.


Reference:

Oracle NoSQL Database Cloud Service Security



Which two statements are accurate regarding the lifecycle management of an Exadata VM Cluster?

  1. The VM Cluster can be independently stopped and started without impacting the underlying Exadata Infrastructure.
  2. The VM Cluster's CPU core count can be dynamically scaled up or down without requiring a reboot.
  3. Patching the Exadata Infrastructure automatically patches the VM Cluster and databases.
  4. Modifying the shape of the Exadata Infrastructure automatically scales the VM Cluster resources proportionally.
  5. The VM Cluster can be terminated independently, allowing reuse of the Exadata Infrastructure for a different VM Cluster.

Answer(s): A,E

Explanation:

A: Exadata VM Clusters can be managed independently from the Exadata Infrastructure. This means you can start or stop the cluster without affecting the infrastructure, which provides flexibility for maintenance and performance tuning.

E: The VM Cluster can be terminated without impacting the Exadata Infrastructure. This feature is useful when you want to reassign the infrastructure resources to a new or different cluster.

Why the other options are incorrect:

B: While some adjustments might not need a reboot, core count scaling often requires restarting.

C: Patching the infrastructure and the VM Cluster are separate processes.

D: Changing the infrastructure shape does not automatically adjust VM Cluster resources. Manual reconfiguration is needed.


Reference:

Oracle Exadata VM Cluster Management



Which statement accurately reflects the impact of applying an Oracle-provided patch to the operating system on an Exadata Database Service instance using the Oracle Cloud Infrastructure (OCI) console?

  1. The OCI console-initiated patch process only updates the database software, leaving the underlying OS untouched.
  2. The OCI console-initiated patch process automatically updates both the database software and the underlying operating system on all compute and storage nodes concurrently.
  3. The OCI console-initiated patch process updates the database software and the OS, allowing for a rolling update strategy on the database nodes, minimizing downtime. Storage nodes are updated separately.
  4. The OCI console-initiated patch process only patches the storage servers; database nodes require manual OS patching.

Answer(s): C

Explanation:

OCI Patching Process:

The Oracle Cloud Infrastructure console simplifies the patching process by integrating both database software and OS patching. The rolling update strategy ensures that one node at a time is patched, reducing the downtime associated with updating the entire cluster. The storage nodes are updated in a separate process to ensure data integrity and availability.

Why the other options are incorrect:

A: The OCI console updates both the OS and database software.

B: Updates are performed in a rolling fashion, not concurrently.

D: The OCI console handles OS patching for both compute and storage nodes.


Reference:

Oracle Exadata Database Service Patching



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