Oracle 1Z0-1093-25 Exam Dumps

C . Accessing data using the unique key:

Oracle NoSQL Database Cloud Service follows a key-value data model.

Data is accessed directly using a unique key, which is highly efficient for lookups.

The value associated with the key can be simple or complex (e.g., JSON objects).

Provides fast read and write operations.

Why the other options are incorrect:

A . SQL with joins: Typical of relational databases, not NoSQL.

B . Graph traversal: Relevant to graph databases, not key-value stores.

D . Full-text indexing: Not the primary access method in key-value databases.

E . Predefined schema: NoSQL databases generally support schema-less data storage.

Oracle NoSQL Database Cloud Service Documentation: Data Access

C . Private subnet for client network:

Essential for secure access to the databases hosted on the Exadata Database Service instance.

Ensures that client connections are restricted and managed through private IPs.

E . Private subnet for database backups:

Used to securely connect to Oracle Cloud Infrastructure Object Storage for storing backups.

Enables data protection without exposing the backup traffic to the public internet.

Why the other options are incorrect:

A . Public subnet for monitoring: Not required; secure access can be configured through private subnets.

B . Service Gateway: Optional, used for connecting to Oracle services without using the public internet.

D . NAT Gateway: Not mandatory unless specific outbound connectivity is required.

Oracle Exadata Cloud Infrastructure Documentation: Network Configuration

A . Automatically optimizing query execution plans for best performance.

Query Optimization:

Query optimization is handled by the database engine itself, not the SDK.

SDKs are primarily focused on providing an interface for data operations, not on internal query optimization.

Why the other options are typical SDK functions:

B . Constructing requests: SDKs facilitate building and sending data manipulation requests.

C . Serializing data: Converting data between application objects and database formats is a core SDK function.

D . Handling pagination: SDKs often include utilities to manage large result sets.

Oracle NoSQL SDK Documentation: SDK Features

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.

Oracle NoSQL Database Cloud Service Documentation: Managing Table Rate Limits

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.

Oracle NoSQL Database Service Overview