1z0-1093-25 Exam Dumps : Oracle Cloud Database Services 2025 Professional

B. Automated Patching via OCI Console/API:

Oracle Cloud Infrastructure offers automated patching tools specifically designed for Exadata Database Service.

These tools coordinate patching across database and storage servers, ensuring consistency.

Features include rolling patching to minimize downtime.

Automation significantly reduces human error and ensures that both database and storage servers are patched efficiently.

Why the other options are incorrect:

A. Manual patching:Prone to errors and time-consuming, especially for complex Exadata environments.

C. Default OS auto-update:Insufficient for comprehensive patching of Exadata components.

D. Ignoring storage servers:Unsafe and could lead to security vulnerabilities.

C. Each data item is uniquely identified by a key, and the associated value can be any data type or structure.

Key-Value Data Model:

The key-value model is fundamentally based on a simple association between a unique key and its corresponding value.

The value can be a simple data type (string, number) or a complex structure (like JSON).

Oracle NoSQL Database Cloud Service uses this model to ensure efficient, scalable data access.

Why the other options are incorrect:

A. Organized into tables with schemas:This represents a relational database model.

B. Stored as JSON documents:Although NoSQL can store JSON, the fundamental model is still key-value.

D. Relationships defined through foreign keys and joins:This is typical of relational databases.

E. Graph format with nodes and edges:Represents a graph database model, not key-value.

D. Dropping the entire table:

Deleting a table is adestructive operationthat permanently removes the data.

Requires the highest level of permissions due to the potential fordata lossand disruption.

Usually restricted toadministrators or highly privileged users.

Why the other options are incorrect:

A. Simple read operation:Basic permission, often granted to most users.

B. Inserting a row:Requires write permissions, but not as critical as table deletion.

C. Updating a row:Similar to insertion, modifies existing data but does not destroy the table.