Free 1Z0-1085-25 sample questions

Correct answer: OCI Dedicated Region

OCI Dedicated Region provides all the services of the public cloud (IaaS, PaaS, SaaS) within the customer's own data center. This satisfies the strict data residency requirement (data stays on-prem) and low-latency connectivity to mainframes, while offering the consumption-based pricing model of the cloud.

Correct answer: Deploy instances across three different Availability Domains.

Availability Domains (ADs) are physically isolated data centers within a region. Deploying across multiple ADs protects against the failure of a single AD (data center). Fault Domains only protect against rack/power failures within a single AD. graph TD Region[OCI Region: Frankfurt] --> AD1[Availability Domain 1] Region --> AD2[Availability Domain 2] Region --> AD3[Availability Domain 3] AD1 --> VM1[Web Server 1] AD2 --> VM2[Web Server 2] AD3 --> VM3[Web Server 3] style AD1 fill:#f9f,stroke:#333,stroke-width:2px style AD2 fill:#f9f,stroke:#333,stroke-width:2px style AD3 fill:#f9f,stroke:#333,stroke-width:2px

Correct answer: Use a single Tenancy and create a top-level Compartment for each subsidiary, with nested compartments for projects.

Compartments are the primary tool for resource isolation and cost management within a tenancy. Creating top-level compartments for each subsidiary allows for distinct policies, budgets, and resource separation while maintaining a single tenancy for centralized administration by the parent company.

Correct answers: Fault Domains act as logical data centers within an Availability Domain.; Each Availability Domain contains exactly three Fault Domains.

Fault Domains are groupings of hardware and infrastructure within an Availability Domain, effectively acting as logical data centers to prevent single points of failure.

Every Availability Domain in OCI is partitioned into three Fault Domains. This allows you to distribute instances so that they do not share the same physical hardware.

Correct answer: Use Instance Principals by adding the Compute instance to a Dynamic Group and creating a policy.

Instance Principals allow instances to be authorized actors (principals) to perform actions on service resources. By placing the instance in a Dynamic Group and writing a policy for that group, the instance can authenticate without storing static credentials, eliminating the risk of key leakage.

Correct answer: Compute Custom Image Import/Export

OCI allows you to import custom images from Object Storage. You can upload your QCOW2 or VMDK file to an Object Storage bucket and then use the Compute service to import it as a Custom Image, which can then be used to launch instances.

Correct answers: Internet Gateway attached to the VCN.; A Route Table entry with destination 0.0.0.0/0 targeting the Internet Gateway.

An Internet Gateway is required to provide a path for network traffic between the VCN and the internet. Without it, no resource in the VCN can be reached from the outside world.

Even with an Internet Gateway attached, the subnet needs a Route Table with a rule explicitly directing traffic destined for the internet (0.0.0.0/0) to the Internet Gateway. graph LR Subnet[Public Subnet] -->|Route 0.0.0.0/0| RT[Route Table] RT --> IGW[Internet Gateway] IGW --> Internet((Internet))

Correct answer: Autonomous Data Warehouse (ADW)

Autonomous Data Warehouse is specifically optimized for analytics workloads (Columnar format, data summarization). Being 'Autonomous', it self-patches, self-tunes, and supports auto-scaling, meeting the requirement to minimize administration.