1z0-1085-26 Oracle Cloud Infrastructure 2026 Foundations Associate Questions and Answers

Dynamic Routing Gateway (DRG) is the component of Oracle Cloud Infrastructure Networking service that provides a private connection between a VCN and an on-premises network using VPN or FastConnect. It allows secure communication between the cloud and on-premises resources.

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Fault domains in Oracle Cloud Infrastructure are used to distribute instances across different physical hardware within an availability domain. This helps in ensuring high availability and fault tolerance by reducing the impact of hardware failures on instances.

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Cost management, performance, and high-availability recommendations are all areas that Oracle Cloud Advisor helps you with. It provides insights and suggestions to optimize these aspects of your Oracle Cloud infrastructure for better efficiency and effectiveness.

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Containers share the host operating system's kernel, leading to quicker startup times and lower overhead compared to virtual machines. They offer more agility and resource efficiency, making them suitable for scalable applications.

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An availability domain in Oracle Cloud Infrastructure refers to one or more data centers located within a region. Each availability domain is isolated from the others, with its own power, cooling, and networking to ensure fault tolerance and reliability.

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Online Resizing allows you to increase the size of a block volume without any downtime. This feature enables you to scale up your storage capacity as needed without interrupting the services running on the block volume.

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Option B is the best available answer because OCI Object Storage provides regional redundancy rather than keeping only one unprotected copy. However, the question’s wording should not be interpreted as a guarantee of a fixed number of complete copies. Oracle explains that its protection schemes include replication and erasure coding, with data and parity fragments distributed across separate storage servers and failure-isolation groups within the region. The service monitors integrity using checksums, repairs corruption, and restores redundancy automatically when necessary. These durability mechanisms operate independently of customer-enabled object versioning. Versioning preserves previous object versions after overwrites or qualifying deletions; it does not enable the service’s underlying redundancy. Therefore, neither a universal two-copy rule nor a single-copy model is accurate. Oracle documentation: Object Storage Durability FAQ

Network Security Groups (NSGs) act as virtual firewalls in OCI, controlling inbound and outbound traffic for specific resources within a VCN. You can define rules based on IPs, ports, and protocols.

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Local NVMe storage consists of solid-state drives attached to the compute host and is available with appropriate OCI compute shapes, including DenseIO shapes. Its local placement supports demanding storage workloads that require high input/output performance and low latency. It differs from independently managed storage services such as Block Volume, Object Storage, and File Storage. The phrase “not persistent” refers to its lack of durability beyond relevant instance or hardware lifecycle events; it should not be interpreted as saying every ordinary reboot erases it. Oracle explicitly states that terminating an instance securely erases its NVMe drives, making their data unrecoverable. Important data therefore requires backups or replication outside those local devices before termination. Oracle documentation: Compute Overview , Terminating an Instance

Both Oracle and the customer share the responsibility for securing workloads and configuring cloud resources. Oracle provides the foundational security infrastructure, while customers are responsible for implementing security measures within their applications and data.

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OCI Functions automatically handles operating system patches and upgrades, ensuring that the functions are secure and up-to-date without requiring manual maintenance from users.

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OCI Dedicated Region provides a fully managed Oracle Cloud Infrastructure region in a customer's data center, allowing them to meet regulatory compliance while running cloud services on-premises.

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