1z0-1084-26 Vorbereitung & 1z0-1084-26 Examengine

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Oracle 1z0-1084-26 Exam Syllabus Topics:

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

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Oracle Cloud Infrastructure Developer Professional 1z0-1084-26 Prüfungsfragen mit Lösungen (Q85-Q90):

85. Frage
Which is NOT a valid use case for leveraging the Oracle Cloud Infrastructure (OCI) Events service?

A. Publishing a notification when long-lived tasks complete, such as an OCI Autonomous Database backup completion.
B. Triggering a notification action when a function completes its execution.
C. Triggering a function deployed in Oracle Functions when new files are uploaded to an OCI Object Storage bucket.
D. Publishing all the OCI resource events in a specific compartment to the OCI Streaming service for later analysis.
E. Capturing the OCI Monitoring service alarms and invoking autoscaling of compute instances.

Antwort: E

Begründung:
The use case that is NOT a valid use case for leveraging the Oracle Cloud Infrastructure (OCI) Events service is " Capturing the OCI Monitoring service alarms and invoking autoscaling of compute instances. " The OCI Events service is designed to provide event-driven architecture and enable automated responses to events occurring within the Oracle Cloud Infrastructure. It allows you to react to changes and activities happening within your OCI resources. The Events service can be used to trigger actions based on events like file uploads, resource changes, or task completions. However, capturing the OCI Monitoring service alarms and invoking autoscaling of compute instances is not a direct functionality provided by the OCI Events service. Autoscaling based on monitoring metrics is typically handled by the OCI Autoscaling service, which is specifically designed for that purpose. The OCI Monitoring service provides monitoring and alerting capabilities, while the Autoscaling service handles the dynamic scaling of compute instances based on predefined policies and thresholds.

86. Frage
Which statement is NOT valid regarding the OCI Vulnerability Scanning service (VSS) for container images stored in Oracle Cloud Infrastructure Registry (OCIR)?

A. When a container scan target is created, the service scans a specified initial number of images, one by default, in the target repositories.
B. Vulnerability reports for the scanned images are saved in the compartment containing the scan target, rather than the repository compartment.
C. A single container repository can be assigned to multiple scan targets in OCI Vulnerability Scanning to enforce different scan recipes.
D. To run container image scans, you must explicitly grant the OCI Vulnerability Scanning service IAM permission to pull images from the registry.

Antwort: C

Begründung:
Oracle explicitly states that youcannot create a container image target using a repository that is already specified in another target. Therefore, a single OCIR repository cannot simultaneously be assigned to multiple Vulnerability Scanning targets simply to apply different recipes, making A invalid. Oracle also documents that a newly created target scans a configurable initial number of existing images, with one image being the default, and subsequently scans newly pushed images. Scan results are stored in the compartment containing the Vulnerability Scanning target, even when the repository resides elsewhere. Before creating a target, administrators must also grant Vulnerability Scanning permission to pull images from Container Registry.
Consequently, B, C, and D accurately describe documented VSS behavior.

87. Frage
What is the difference between blue/green and canary deployment strategies? (Choose the best answer.)

A. In blue/green, current applications are slowly replaced with new ones. In canary, the application Is deployed Incrementally to a select group of people.
B. In blue/green, the application Is deployed In minor Increments to a select group of people. In canary, both old and new applications are simultaneously in production.
C. In blue/green, current applications are slowly replaced with new ones. In canary, both old and new applications are in production at the same time.
D. In blue/green, both old and new applications are in production at the same time. In canary, the application Is deployed incrementally to a select group of people.

Antwort: D

Begründung:
The correct answer is: In blue/green deployment, both old and new applications are in production at the same time. In canary deployment, the application is deployed incrementally to a select group of people. In a blue
/green deployment strategy, two identical environments, referred to as blue and green, are set up. The current production environment (blue) continues to serve live traffic while a new version of the application is deployed in the green environment. Once the new version is tested and deemed stable, traffic is routed from the blue environment to the green environment, making it the new production environment. This approach allows for a seamless switch between the old and new versions of the application. On the other hand, in a canary deployment strategy, the new version of the application is deployed incrementally to a small subset of users or a specific group. This allows for testing the new version in a real production environment while minimizing the impact of any potential issues. If the new version performs well and meets the desired criteria, it can be gradually rolled out to a larger audience or the entire user base. In summary, the main difference between blue/green and canary deployment strategies lies in how the deployment is managed. Blue/green involves simultaneous production of both old and new applications, while canary deployment focuses on incremental deployment to a select group of users.

88. Frage
You are developing an asynchronous, decoupled billing microservice that consumes payment messages from an Oracle Cloud Infrastructure (OCI) Queue. You notice that some corrupted payment payloads are causing the consumer application to fail and restart repeatedly, leaving the messages unprocessed and blocking the queue. To isolate these toxic messages, you want to redirect them to a Dead Letter Queue (DLQ) after 5 failed delivery attempts.
Which TWO configuration steps or characteristics must you apply to implement this solution?

A. A separate target queue must be manually created first and then selected as the designated Dead Letter Queue.
B. A dead letter queue is automatically created when you create the queue, so no manual DLQ resource creation is required.
C. Modify the " Maximum delivery attempts " setting of the queue to 5.
D. Configure an IAM policy specifically allowing the source queue to write to a target DLQ queue.
E. Enable consumer groups on the queue because DLQ functionality is only supported when utilizing consumer groups.

Antwort: B,C

Begründung:
The supplied Word answer key requires correction here. Current Oracle Queue documentation explicitly states that adead letter queue is automatically created when a queue is created. Therefore, option C is correct and option B is not. Oracle also provides the Maximum delivery attempts setting, which controls how many unsuccessful deliveries can occur before a problematic message is transferred to the DLQ. Setting that value to 5 implements the requested retry threshold. No separately provisioned target queue is required, consumer groups are optional and unrelated to enabling DLQ functionality, and administrators do not create an IAM policy authorizing a source queue resource to write to its automatically associated DLQ. Consequently, the verified current answer isA, C, not the Word file ' s A, B.

89. Frage
A developer has created another version of a microservice and wants 10% of the traffic to flow towards it for testing purposes. The application is already configured using OCI (Oracle Cloud Infrastructure) Service Mesh. Which of the following steps is the right approach to achieve this goal?

A. Create a new entry in the routeRules field of the virtual service route table manifest to configure traffic splitting between the old and new versions of the microservice and set the percentage to 10%.
B. Create a new Kubernetes deployment for the new version of the microservice and set the traffic splitting percentage to 10% in the Kubernetes service manifest.
C. Use Kubernetes HPA (Horizontal Pod Autoscaler) to scale the new version of the microservice to handle 10% of the traffic automatically.
D. Create a new entry in the routeRules field of the ingress gateway route table manifest to configure traffic splitting between the old and new versions of the microservice and set the percentage to 10%.

Antwort: A

90. Frage
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