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

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Viewing questions 11-20 out of questions

Questions # 11:

What is the primary purpose of the MySQL Database Service HeatWave configuration in OCI?

Options:

To enable seamless database migration from on-premises to OCI

To provide a distributed in-memory query accelerator

To offer a serverless MySQL deployment

To ensure high availability and fault tolerance

Answer

Explanation

MySQL Database Service HeatWave is designed to accelerate query performance by offloading analytics to an in-memory columnar store. It enables faster query execution for analytical workloads.

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Questions # 12:

Why might you choose to use containers instead of virtual machines?

Options:

Containers provide better isolation than virtual machines.

Containers allow for faster startup time and more efficient resource usage.

Containers require more resources to run.

Containers are less flexible in terms of resource allocation.

Answer

Explanation

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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Questions # 13:

Which statement is NOT true about compartments in Oracle Cloud Infrastructure?

Options:

Compartments are a global resource.

Identity and Access Management (IAM) policies can be written to grant access to resources in specific compartments.

Compartments provide a way to store and manage encryption keys and secrets.

Compartments can be nested to create a hierarchy.

Answer

Explanation

This statement is NOT true. Compartments in Oracle Cloud Infrastructure do not provide a way to store and manage encryption keys and secrets. This functionality is typically handled by other services such as Key Management.

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Questions # 14:

What is an identity domain in OCI?

Options:

A logical container for managing users and groups.

A private subnet used for securing network communications.

A firewall service that controls access to OCI resources.

A physical data center that stores user credentials.

Answer

Explanation

An identity domain in OCI Identity and Access Management represents a population of users together with associated identity configurations and security settings. Administrators manage users, groups, application integrations, and administrative roles within this logical container. Identity domains also support capabilities such as federation, single sign-on, and multifactor authentication. Every tenancy includes a Default identity domain, and additional domains can separate identity populations or application environments when required. An identity domain is therefore an identity-management boundary rather than a networking component or physical location. Private subnets organize network interfaces, while firewall controls regulate traffic. Neither function describes an identity domain. Option A correctly identifies its role as a logical container for identity resources. Oracle documentation: Managing Identity Domains

Questions # 15:

What is the primary difference between a public subnet and a private subnet in an OCI VCN?

Options:

Public subnets can host only load balancers, whereas private subnets host databases.

Public subnets allow resources to have public IP addresses and direct internet access, whereas private subnets do not.

Public subnets require a /24 CIDR block, whereas private subnets do not.

Private subnets can be created only in a separate region from the VCN.

Answer

Explanation

In OCI, the defining distinction is whether a subnet permits public IP address assignment to its resources. A public subnet permits public IP addresses, while a private subnet prohibits that assignment. Option B is therefore the best answer, but direct internet connectivity is not automatic merely because a subnet is public. An instance also needs a public IP address, an internet gateway, appropriate routing, and security rules that allow the traffic. Private-subnet instances can obtain outbound internet connectivity through a NAT gateway without receiving public IP addresses. Public and private subnets are not restricted to particular application roles, and public subnets do not universally require a /24 address range. Both belong within their VCN’s region. Oracle documentation: Public IP Addresses

Questions # 16:

Which workload type is NOT optimized for Oracle Autonomous Database on Shared Exadata Infrastructure?

Options:

Data warehousing

Mixed workloads

Transaction processing

High-performance computing

Answer

Explanation

High-performance computing (HPC) typically involves complex calculations and processing, which are not optimized for Oracle Autonomous Database on Shared Exadata Infrastructure. HPC often requires specialized hardware and configurations for optimal performance.

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Questions # 17:

In OCI, what is one key reason to choose a Network Load Balancer over the Standard Load Balancer (HTTP/HTTPS)?

Options:

The Network Load Balancer can perform complex Layer 7 routing decisions.

The Network Load Balancer operates at Layer 4, offering lower latency for TCP and UDP traffic.

The Network Load Balancer exclusively supports web (HTTP/HTTPS) protocols.

The Network Load Balancer is used only for database traffic inside a private subnet.

Answer

Explanation

OCI Network Load Balancer provides traffic distribution with high throughput and very low latency. Oracle documents its operation at Layers 3 and 4, making option B the best answer among the available choices. Its listeners support transport-level traffic, including TCP and UDP, without requiring application-level HTTP routing decisions. This makes it suitable for workloads that need efficient connection handling and minimal processing overhead. Depending on its configuration, it can also preserve source IP information. Complex Layer 7 routing is associated with application-aware load balancing. Network Load Balancer supports both public and private deployments, so it is neither restricted to web protocols nor limited to database traffic within private subnets. Oracle documentation: Introduction to Network Load Balancer

Questions # 18:

How does OCI ensure data encryption for stored and transmitted data?