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Oracle 1z0-1084-26 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Monitoring & Troubleshooting Cloud Native Applications	10%	- Monitoring, Logging, and Tracing 1. Perform tasks around monitoring, logging, and tracing - OCI Logging 1. Use OCI Logging Service to enable, manage, and search logs - OCI Monitoring 1. Utilize OCI Monitoring Service to view metrics
Topic 2: Leveraging Serverless Technologies for Cloud Native Development	33%	- OCI Events 1. Build event-driven serverless applications using OCI Events Service - OCI Queue 1. Facilitate asynchronous messaging for microservices with OCI Queue - OCI Streaming 1. Create integration between systems using OCI Streaming Service - Oracle Functions 1. Develop serverless applications with Oracle Functions - API Gateway 1. Create API gateways to process traffic from API clients and route it to back-end services
Topic 3: Testing and Securing Cloud Native Applications	13%	- OCI Vault 1. Use OCI Vault to securely store and manage encryption keys and sensitive configuration information - Cloud Native Testing 1. Analyze and evaluate cloud native testing methodologies and develop effective strategies for testing cloud native applications - Cloud Native Security 1. Apply security measures to overcome challenges with cloud native development
Topic 4: Cloud Native Applications and Containerization	33%	- Oracle Kubernetes Engine 1. Develop and deploy containerized applications on Oracle Kubernetes Engine - Docker and Containerization 1. Explain Docker and the concepts around its architecture and components - Container Orchestration 1. Discuss the role of container orchestration - OCI Registry 1. Use OCI Registry to pull and push container images
Topic 5: Cloud Native Fundamentals	11%	- Cloud Native Principles 1. Explain the fundamentals of cloud native and discuss the key pillars of cloud native development - Microservices Architecture 1. Explain the microservices architecture and discuss the design methodology of microservices

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Oracle Cloud Infrastructure Developer Professional Sample Questions (Q164-Q169):

NEW QUESTION # 164
Your organization mandates that all containerized workloads deployed to Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE) must utilize Kubernetes NetworkPolicy resources, such as Calico, to enforce strict micro-segmentation of traffic. You have deployed these workloads to an enhanced OKE cluster using virtual node pools to minimize infrastructure maintenance. During testing, you discover that the Calico installation fails because NetworkPolicy resources and third-party CNI policy integrations are completely unsupported on this specific node configuration. How should you resolve this security implementation challenge while continuing to use VCN-Native Pod Networking?

A. Reconfigure your virtual node pools to use the Flannel overlay plugin, which natively implements network policy isolation on virtual nodes.
B. Define an OCI IAM policy that grants the OKE workload identity access to manage network security lists at the virtual node level.
C. Upgrade your OKE virtual nodes to Kubernetes version 1.30 or higher, which enables native, agentless NetworkPolicy support on virtual nodes.
D. Migrate your workloads to managed node pools within the OKE cluster, where VCN-Native Pod Networking supports Calico for NetworkPolicy enforcement.

Answer: D

Explanation:
Oracle explicitly states that virtual nodes do not support Kubernetes NetworkPolicy resources or network providers such as Calico and Cilium that provide NetworkPolicy enforcement. Virtual nodes support only OCI VCN-Native Pod Networking and cannot use Flannel or other third-party CNI plugins. By contrast, Calico can be installed with managed node pools while retaining VCN-native pod networking. This combination enables Kubernetes NetworkPolicy objects to enforce pod-level traffic controls and micro- segmentation. An IAM policy or network security list cannot substitute for Kubernetes NetworkPolicy because OCI network controls and Kubernetes pod policy enforcement operate at different layers. Therefore, when Calico-based NetworkPolicy enforcement is mandatory, migrating the workload from virtual nodes to managed node pools is the supported OKE architecture.

NEW QUESTION # 165
You are tasked with developing an application that requires the use of Oracle Cloud Infrastructure (OCI) APIs to POST messages to a stream in the OCI Streaming service. Which statement is incorrect? (Choose the best answer.)

A. The Content-Type header must be set to application/json
B. An HTTP 401 will be returned if the client ' s clock is skewed more than 5 minutes from the server ' s.
C. The request does not require an Authorization header.
D. The request must include an authorization signing string including (but not limited to) x-content- sha256, content-type, and content-length headers.

Answer: C

Explanation:
The statement that is incorrect is: " The request does not require an Authorization header. " In order to POST messages to a stream in the OCI Streaming service using OCI APIs, the request does require an Authorization header. The Authorization header is used to provide authentication and ensure the request is authorized to access the stream. The correct approach is to include the Authorization header in the request, along with other required headers such as x-content-sha256, content-type, and content-length. Therefore, the incorrect statement is that the request does not require an Authorization header.\

NEW QUESTION # 166
Which is ONE of the differences between a microservice and a serverless function?

A. Microservices are used for long running operations while serverless functions are used for short running operations.
B. Microservices always use a data store while serverless functions never use a data store.
C. Microservices are stateless while serverless functions are stateful.
D. Microservices are triggered by events while serverless functions are not.

Answer: A

Explanation:
The correct answer is: Microservices are used for long running operations while serverless functions are used for short running operations. One of the key differences between microservices and serverless functions is the duration of their execution. Microservices are typically designed to handle long-running operations and may continuously run and process requests as part of a larger system. They are often deployed and managed as long-lived services. On the other hand, serverless functions are designed to handle short-lived operations or tasks that execute in response to specific events or triggers. They are event-driven and execute only when invoked, providing a lightweight and ephemeral computing model. Serverless functions are often used for executing small, isolated pieces of code without the need for managing infrastructure or scaling concerns.
While both microservices and serverless functions can be stateless or stateful depending on the specific implementation, the key distinction lies in the typical duration and execution pattern of these components within an application architecture.

NEW QUESTION # 167
Your organization requires automatic rotation of third-party API keys stored as secrets in OCI Vault every 90 days. You have created a custom serverless OCI Function named rotate-api-keys that handles the API key generation and updates. You are now configuring the automatic rotation properties of the OCI Vault secret via the OCI API. Which configuration must you specify on the secret to automatically run this custom OCI Function at the required interval?

A. Define a metric alarm in the OCI Monitoring service that triggers an OCI Notification topic whenever the secret ' s age exceeds 90 days, which then invokes the OCI Function.
B. Associate a Secret Rule of type SecretExpiryRule on the secret, and configure the rule configuration to trigger your OCI Function ' s API endpoint dynamically every 90 days.
C. Set the rotation_config with is_scheduled_rotation_enabled to true, set the rotation_interval to " P90D "
, and specify target_system_details with target_system_type set to " FUNCTION " and the function_id of your custom function.
D. Define an IAM policy that allows the vault to execute the OCI Function, and configure an OCI Events rule to capture the " Secret Expired " event to invoke the function.

Answer: C

Explanation:
OCI Vault natively supports scheduled secret rotation and integration with OCI Functions. The RotationConfig model contains is_scheduled_rotation_enabled, rotation_interval, and target_system_details.
Oracle specifies that enabling scheduled rotation requires a rotation interval represented using ISO 8601 duration syntax, so P90D expresses 90 days. For Function-based rotation, the target system is configured as a Function and the target details identify the Function OCID. Oracle further states that Secret Service invokes the configured rotation function as part of the rotation process. A SecretExpiryRule controls expiration rather than scheduled function-based rotation, while Monitoring alarms and Events rules would introduce separate orchestration rather than use Vault ' s native feature. Therefore, A correctly configures automatic 90-day Function-based rotation.

NEW QUESTION # 168
Which open source engine is used by Oracle Cloud Infrastructure (OCI) to power Oracle Functions?

A. Fn Project
B. Knative
C. Kubeless
D. Apache OpenWhisk

Answer: A

Explanation:
Fn Project is the open source engine that is used by OCI to power Oracle Functions1. Fn Project is an open source, container native, serverless platform that can be run anywhere - any cloud or on-premises1. Fn Project is easy to use, extensible, and performant. You can download and install the open source distribution of Fn Project, develop and test a function locally, and then use the same tooling to deploy that function to Oracle Functions1.Verified References: Overview of Functions

NEW QUESTION # 169
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