Important Oracle 1Z0-1072-25 Exam Questions

Answer: C

Explanation:

In OCI, if you choose not to proactively reboot your instance before the scheduled maintenance due date, the system will handle the maintenance automatically to ensure that the instance remains operational.

Reboot-Migration or Rebuild in Place: If you don't reboot the instance yourself, OCI will automatically perform a reboot-migration or rebuild in place for the instance. This ensures that the instance is moved to new hardware or updated without your intervention, maintaining uptime and applying necessary updates or fixes.

Impact on Instance: The exact action taken (reboot-migration or rebuild in place) depends on the type of maintenance required. However, either action will temporarily interrupt the instance, typically involving a reboot, but the instance's data and configuration will be preserved.

Relevant OCI Documentation:

Instance Maintenance

OCI Maintenance Events

These references discuss the procedures and options available for handling instance maintenance in OCI.

Answer: C

Explanation:

The principle of least privilege is a security best practice that dictates that users should only be granted the minimum set of permissions necessary to perform their tasks. This principle helps to minimize the risk of accidental or malicious actions that could compromise security.

IAM Policies in OCI: When creating IAM policies in OCI, you should carefully evaluate the required permissions and only grant those that are absolutely necessary for the users or groups to perform their specific roles. This helps to reduce the attack surface and prevent unauthorized access to sensitive resources.

Oracle Cloud Infrastructure Documentation: Identity and Access Management (IAM) Best Practices

Answer: A

Explanation:

Geolocation Steering in OCI's Traffic Management Steering Policy allows you to distribute DNS traffic based on the geographical location of the end users. This method helps direct users to the nearest regional endpoint, optimizing latency and improving user experience.

Use Cases: Geolocation Steering is commonly used to deliver region-specific content, comply with data residency laws, or optimize service performance by directing traffic to the closest available servers.

Oracle Cloud Infrastructure Documentation: Traffic Management Steering Policies

Answer: D

Explanation:

Remote peering in Oracle Cloud Infrastructure allows two VCNs in different regions to communicate securely. To establish remote peering, the following components are required:

Two VCNs with Nonoverlapping CIDRs:

The CIDR blocks of the two VCNs must not overlap. This is crucial to avoid routing conflicts and ensure that traffic is correctly routed between the VCNs.

Dynamic Routing Gateway (DRG) Attached to Each VCN:

A DRG is a virtual router that provides a path for traffic between the VCN and networks outside the VCN, such as other VCNs via remote peering, on-premises networks, or other cloud services. Each VCN needs its own DRG.

Remote Peering Connection (RPC):

An RPC is a specialized connection on the DRG used specifically for remote peering. You need to create an RPC on each DRG associated with the VCNs you wish to peer.

Connection Between RPCs:

Finally, a connection must be established between the RPCs of the two DRGs. This connection facilitates the secure and private exchange of traffic between the VCNs over Oracle's backbone network.

Incorrect Options:

Option A involves a single VCN, which does not fulfill the requirement of remote peering between two VCNs.

Option B involves overlapping CIDRs and VPN gateways, which are incorrect for remote peering.

Option C suggests peering within the same region, which would be considered local peering rather than remote peering.

Relevant OCI Documentation:

OCI Remote VCN Peering

Dynamic Routing Gateway (DRG) Overview

These resources provide a detailed guide on configuring remote peering in OCI, ensuring secure and effective communication between VCNs across regions.

Answer: B

Explanation:

Oracle Cloud Infrastructure (OCI) Object Storage is a scalable, highly durable service that allows you to store any type of data in a secure and cost-effective manner. The correct and incorrect statements regarding OCI Object Storage are as follows:

A . Immutable Option: You can indeed set an immutable option for data in Object Storage using retention rules. This feature ensures that once data is written, it cannot be modified or deleted until the retention period expires, making it ideal for regulatory compliance.

C . Object Lifecycle Rules: Object lifecycle policies allow you to automate the archiving or deletion of objects based on their age or other criteria, helping manage storage costs and data retention efficiently.

D . Object Versioning: Versioning is enabled at the bucket level, not the namespace level. However, once enabled for a bucket, it helps retain, retrieve, and restore every version of every object stored in that bucket.

B . Object Storage Sharing Across Tenancies: This statement is not true. OCI Object Storage buckets and objects are specific to a tenancy and cannot be shared across different tenancies directly. Access to Object Storage resources is controlled within a single tenancy through IAM policies.

Relevant OCI Documentation:

OCI Object Storage Overview

Object Lifecycle Management

These references provide details on how Object Storage functions and the features available.