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Within the context of Oracle Cloud Infrastructure (OCI) Base Database Service (BaseDB) virtual machine (VM) provisioning, which action is typically the RESPONSIBILITY of the customer?
B . Managing the Oracle Grid Infrastructure software stack:
Customers are responsible for the installation, configuration, and maintenance of the Oracle Grid Infrastructure when using BaseDB VMs.
This includes managing Oracle Clusterware and Automatic Storage Management (ASM) if applicable.
Ensuring the Grid Infrastructure's availability and performance is part of customer-managed tasks.
Why the other options are incorrect:
A . Hardware fault tolerance: Managed by Oracle Cloud Infrastructure.
C . Hypervisor maintenance: Handled by Oracle as part of the OCI infrastructure.
D . Security patching: While OCI provides tools, the responsibility for OS patching lies with the customer.
Oracle BaseDB VM Documentation: Responsibilities and Maintenance
If the Database Management Service is failing to collect performance metrics from a cloud database, which is the LEAST likely cause?
Reasoning:
The Database Management Service can collect performance metrics from databases across different regions within the same OCI tenancy. Therefore, the geographic location of the service relative to the database is not a common issue.
More Likely Causes:
A: IAM policies that do not grant sufficient permissions are a common issue.
B: If the database is offline, no metrics can be collected.
D: A locked database user account used by the Management Agent will prevent data collection.
Why C is incorrect:
The Database Management Service can be configured to collect metrics from databases across regions, as long as network access and permissions are properly configured.
Oracle Database Management Service Troubleshooting Guide
In a BaseDB environment configured with automatic backups, what happens to the automatic backups when the DB system is terminated?
Backup Retention Policy:
When a BaseDB system is terminated, automatic backups are not immediately deleted. Instead, they remain stored in OCI Object Storage for the duration specified by the backup retention policy that was configured at the time of database creation.
This approach ensures that data can be recovered even after the database instance itself is terminated.
Administrators can manually delete backups if they are no longer needed, but they are not automatically purged.
Why the other options are incorrect:
A: Backups are not deleted instantly upon termination.
B: All backups are retained as per the policy, not just the most recent.
D: No automatic migration to archive tier occurs.
E: Backup retention settings are defined during provisioning, but not dynamically configurable after termination.
Oracle BaseDB Backup Management
When cloning a BaseDB database for development and testing, which of the following considerations is MOST critical to ensure compliance with data privacy regulations?
B . Masking or anonymizing sensitive data:
Data privacy regulations (like GDPR, HIPAA) mandate that personally identifiable information (PII) is protected, even in non-production environments.
Cloning a database without masking sensitive data could expose confidential information to unauthorized users.
Techniques include:
Data masking: Replacing real data with realistic, but non-sensitive values.
Data anonymization: Irreversibly removing personally identifiable information.
Why the other options are incorrect:
A . Matching compute shape: Relevant to performance, not privacy.
C . Using the same database version: Important for compatibility, but not related to data privacy.
D . Same NSG rules: Important for network security, but does not directly address data exposure.
E . Off-peak scheduling: Minimizes disruption but does not address data protection.
Oracle Database Security Documentation: Data Masking Techniques
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?
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.
Oracle NoSQL Database Documentation: Key-Value Model
