Pass the Oracle Cloud Solutions Infrastructure 1z0-1072-25 Questions and answers with ExamsMirror

To securely grant a third-party application access to specific Oracle Cloud Infrastructure (OCI) resources, the recommended approach is to configure the application to use Instance Principal. This method allows the application to authenticate directly with OCI services without needing to manage sensitive credentials like passwords or API keys.

Instance Principals: Enable compute instances to directly make API calls against OCI services, inheriting permissions through IAM policies. This setup is more secure than sharing user credentials, as it avoids hardcoding credentials within the application and leverages OCI's native security features.

In Oracle Cloud Infrastructure (OCI), policies are written to define permissions for user groups. The correct policy to provide admin access to all three existing admin groups in a shared compartment (in this case, the "Test" compartment) would be:

"Allow all-group to manage all-resources in compartment Test where request.principal.group.tag.EmployeeGroup.Role=’Admin’".

"Allow all-group": Grants access to all groups.

"to manage all-resources": Specifies full access permissions (manage includes all CRUD operations).

"in compartment Test": Limits the scope of the policy to the "Test" compartment.

"where request.principal.group.tag.EmployeeGroup.Role=’Admin’": Adds a condition to restrict this admin-level access to only groups tagged with the role 'Admin'.

This policy ensures that only users in the groups tagged as Admin will be allowed to manage resources in the Test compartment, making it the most suitable choice for providing admin access.

For reference:

OCI Policy Syntax Documentation

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To calculate the monthly cost for 7 Petabytes (PB) of outbound data transfer at a rate of $0.0085 per GB in North America:

Calculation:

1 PB = 1,000,000 GB

7 PB = 7,000,000 GB

Cost = 7,000,000 GB * $0.0085/GB = $59,500.00

Thus, the cost for 7 PB of outbound data transfer per month is $59,500.00.

The Network Visualizer tool in Oracle Cloud Infrastructure is valuable because it visualizes the topology of all Virtual Cloud Networks (VCNs) in a selected region and tenancy.

Topology Visualization: The Network Visualizer provides a graphical representation of the network components and their relationships within a VCN, including subnets, route tables, gateways, and security lists. This visualization helps users understand the network architecture and troubleshoot issues effectively.

Other Options:

Real-time monitoring of network traffic (B), detailed information about physical network components (C), and automated reports on network performance metrics (D) are not the primary functions of the Network Visualizer. These functionalities are typically handled by other OCI services or tools.

Relevant OCI Documentation:

Network Visualizer Overview

This documentation details the features and benefits of the Network Visualizer tool in OCI.

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When performing a multipart upload using the Multipart Upload API in Oracle Cloud Infrastructure (OCI) Object Storage, the following points are true:

C. Each part can be as large as 50 GiB: OCI allows each part of a multipart upload to be up to 50 GiB in size. This enables the efficient uploading of large objects in smaller, manageable parts.

D. You can keep adding parts as long as the total number is less than 10,000: The Multipart Upload API supports up to 10,000 parts for a single object. This allows the upload of very large objects by dividing them into multiple parts.

Incorrect Statements:

A. After uploading all parts, you must commit the upload to finalize the multipart upload and combine all parts into a single object.

B. The object must be split into parts before uploading when using the Multipart Upload API.

The OS Management Service in Oracle Cloud Infrastructure (OCI) is designed to manage and maintain the operating systems of your compute instances. This service allows you to apply kernel security updates, manage package installations, and monitor the status of updates across all instances in your environment.

Kernel Security Updates: With OS Management Service, you can automate and schedule kernel updates, ensuring that all instances are up-to-date with the latest security patches. This helps maintain the security and integrity of your infrastructure without needing to manually update each instance.

Other Options:

Container Registry: Used for storing and managing container images, not for applying OS updates.

Data Safe: A service focused on database security, not applicable for OS-level updates.

Artifact Registry: A repository for storing and managing software artifacts, not related to OS management.

Relevant OCI Documentation:

OS Management Service Overview

This documentation provides details on how to use OS Management Service to handle kernel security updates and other OS-level management tasks.

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In Oracle Cloud Infrastructure (OCI) File Storage, when you overwrite a portion of a file, the service does not immediately reclaim the space occupied by the previous version of the file. The total meteredBytes reflects both the original data and the new data written.

Scenario Explanation: You start with a 1 GB file. When you overwrite 0.5 GB of this file, the file system retains both the 0.5 GB of the original file and the new 0.5 GB you wrote.

Calculation: The original 1 GB file contributes 1 GB to meteredBytes. When 0.5 GB is overwritten, the total usage becomes 1.5 GB (1 GB original + 0.5 GB new).

Thus, after the hourly update cycle, the total meteredBytes shown by the File Storage service will be 1.5 GB.

To ensure secure communication between database servers and OCI Object Storage, you should use a Service Gateway. A Service Gateway enables instances in your VCN to privately access OCI services like Object Storage without traversing the public internet.

Security: The traffic between your database servers and Object Storage remains within the Oracle network, providing a secure and high-performance connection.

In Oracle Cloud Infrastructure (OCI), pre-authenticated requests (PARs) allow users to grant access to specific objects in Object Storage without requiring the recipient to have an OCI account or credentials. This feature is useful for sharing objects securely without exposing broader access.

Cannot Edit a PAR: Once a pre-authenticated request is created, you cannot edit it. If you need to change the settings, such as the expiration date or the object being shared, you must delete the existing PAR and create a new one.

Other Statements:

Deleting a PAR does indeed revoke access immediately, contradicting option B.

Providing OCI credentials (C) is not required for using PARs. The purpose of PARs is to avoid sharing credentials.

Deleting Buckets (D): PARs are designed for accessing objects, not for administrative actions like deleting buckets.

Relevant OCI Documentation:

Managing Pre-Authenticated Requests

This reference outlines the features and limitations of pre-authenticated requests, including the inability to edit them once created.

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In OCI File Storage, snapshots are point-in-time, read-only copies of a file system that do not immediately consume additional storage beyond the space needed to track changes.

Incorrect Statement: The statement that a new snapshot consumes more storage even if nothing has changed is incorrect. Snapshots are space-efficient; they only consume additional storage as changes are made to the file system after the snapshot is taken. If no changes are made between snapshots, the storage consumption remains minimal.

Correct Statements:

B. Before cloning a file system, at least one snapshot must exist, as the clone operation relies on this snapshot to create a copy.

C. Snapshots are accessible under the .snapshot directory, allowing users to view and restore files from specific snapshots.

D. Snapshots provide a consistent, point-in-time view of the file system, ensuring data integrity.