[Q47-Q63] Pass Oracle Oracle Cloud Infrastructure 2023 Developer Professional Exam in First Attempt Guaranteed Updated Dump from PracticeMaterial!

NO.47 What is the difference between continuous delivery and continuous deployment in the DevOps methodology?
(Choose the best answer.)

Continuous delivery involves automation of developer tasks, whereas continuous deployment involves manual operational tasks.

Continuous delivery is a process that Initiates deployment manually, whereas continuous deployment is based on automating the deployment process.

Continuous delivery requires automatic linting, whereas continuous deployment testing must be run manually.

Continuous delivery utilizes automatic deployment to a development environment, whereas continuous deployment involves automatic deployment to a production environment.

NO.48 What is the difference between continuous delivery and continuous deployment in the DevOps methodology? (Choose the best answer.)

Continuous delivery involves automation of developer tasks, whereas continuous deployment involves manual operational tasks.

Continuous delivery requires automatic linting, whereas continuous deployment testing must be run manually.

Continuous delivery utilizes automatic deployment to a development environment, whereas continuous deployment involves automatic deployment to a production environment.

Continuous delivery is a process that Initiates deployment manually, whereas continuous deployment is based on automating the deployment process.

NO.49 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?

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%.

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%.

Use Kubernetes HPA (Horizontal Pod Autoscaler) to scale the new version of the microservice to handle
10% of the traffic automatically.

Create a new Kubernetes deployment for the new version of the microservice and set the trafficsplitting percentage to 10% in the Kubernetes service manifest.

NO.50 Which is the smalled unit of Kubernetes architecture?

Node

Container

Cluster

Pod

NO.51 How are cloud native application versions deployed to an OKE cluster when using a blue/green deployment strategy?

New application versions are deployed in minor increments to a select group of people.

Current applications are slowly replaced with new application versions.

Both old and new application versions are deployedto production at the same time.

NO.52 You developed a microservices-based application that runs in an Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE) cluster. It has multiple endpoints that need to be exposed to the public internet. What is the most cost-effective way to expose multiple application endpoints without adding unnecessary complexity to the application?

Use a NodePort service type in Kubernetes for each of your service endpoints using the node’s public IP address to access the applications.

Create a separate load balancer instance for each service using the lowest 100 Mbps option.

Use a ClusterIP service type in Kubernetes for each of your service endpoints using a load balancer to expose the endpoints.

Deploy an Ingress Controller and use it to expose each endpoint with its own routing endpoint.

NO.53 You are instructed to automate manual tasks and help software teams manage complex environments at scale using the Oracle Cloud Infrastructure (OCI) services. Which THREE OCI services can be leveraged to securely store and version your application’s source code, and automate the building, testing, and deployment of applications to the OCI platform? (Choose three.)

Oracle Cloud Infrastructure Registry

Container Engine for Kubernetes

Resource Manager

Oracle APEX Application Development

DevOps

Oracle Cloud Logging Analytics

NO.54 In the DevOps lifecycle, what is the difference between continuous delivery and continuous deployment?
(Choose two.)

Continuous delivery requires more automatic linting, while continuous deployment testing must be run manually.

Continuous delivery is a process that initiates deployment manually, while continuous deployment is based on automating the deployment process.

Continuous delivery utilizes automatic deployment to a development environment, while continuous deployment involves automatic deployment to a production environment.

Continuous delivery involves automation of developer tasks, while continuous deployment involves manual operational tasks.

NO.55 Which statement accurately describes the Oracle Cloud Infrastructure (OCI) Load Balancer integration with OCI Container Engine for Kubernetes (OKE)?

OKE service provisions an OCI Load Balancer instance for each Kubernetes service with LoadBalancer type in the YAML configuration.

OKE service provisions a single OCI Load Balancer instance shared with all the Kubernetes services with LoadBalancer type in the YAML configuration.

OCI Load Balancer instance provisioning is triggered by the OCI Events service for each Kubernetes service with LoadBalancer type in the YAML configuration.

OCI Load Balancer instance must be manually provisioned for each Kubernetes service that requires traffic balancing.

NO.56 Which is NOT a valid use case for leveraging the Oracle Cloud Infrastructure (OCI) Events service?

Capturing the OCI Monitoring service alarms and invoking autoscaling of compute instances.

Publishing a notification when long-lived tasks complete, such as an OCI Autonomous Database backup completion.

Triggering a notification action when a function completes its execution.

Triggering a function deployed in Oracle Functions when new files are uploaded to an OCI Object Storage bucket.

Publishing all the OCI resource events in a specific compartment to the OCI Streaming service for later analysis.

NO.57 Your company has recently deployed a new web application that uses Oracle Functions. Your manager instructs you to implement monitoring metrics to manage your systems more effectively. You know that Oracle Functions automatically monitors functions on your behalf and reports metrics via Oracle Cloud Infrastructure (OCI) Monitoring. Which TWO metrics are collected and made available by this feature? (Choose two.)

Amount of CPU used by a function

Length of time a function runs

Number of times a function Is removed

Amount of RAM used by a function

Number of times a function is invoked

NO.58 To effectively test your cloud native applications for “unknown unknowns”, you need to employ various testing and deployment strategies. Which strategy involves exposing new functionality or features to only a small set of users?

A/B Testing

Component Testing

Blue/Green Deployment

Canary Deployment

NO.59 Kubernetes includes various elements such as compute, network, and storage. Compute is essentially CPU (units) and memory (bytes). Within an OKE cluster, what is considered to be the smallest unit of deployment with respect to compute?

Container

Service

Pod

Namespace

Deployment resource

NO.60 You have two microservices, A and B, running in production. Service A relies on APIs from service B. You want to test changes to service A without deploying all of its dependencies, which include service B. Which approach should you take to test service A?

There is no need to explicitly test APIs.

Test against production APIs.

Test using API mocks.

Test the APIs in private environments.

NO.61 As a developer, you have been tasked with implementing a microservices-based application. Which THREE technologies are best suited to accomplish the task? (Choose three.)

Terraform

Big Data

Anomaly Detection

Service Mesh

Docker

Kubemetes

NO.62 As a Cloud Native developer, you develop two services in Node.js and deploy them to two different Container Engine for Kubernetes (OKE) clusters that use the same Virtual Cloud Network (VCN). Your security team wants to analyze the network communication between them. How can this requirement be met in the most cost-effective way?

Use the OCI Logging service and enable VCN flow logs.

Rewrite the application and send the application logs to an outside log aggregator.

Deploy a third-party logging service and aggregate the network flow logs.

Deploy Wireshark and intercept the packets.

Explanation
The best answer is: “Use the OCI Logging service and enable VCN flow logs.” To meet the requirement of analyzing network communication between two services deployed in different Container Engine for Kubernetes (OKE) clusters within the same Virtual Cloud Network (VCN) in a cost-effective way, you can use the OCI Logging service and enable VCN flow logs. The VCN flow logs feature in OCI allows you to capture and log network traffic information for your VCN resources. By enabling VCN flow logs, you can monitor and analyze the network communication between your services without the need for additional third-party logging services or tools. Enabling VCN flow logs provides visibility into the network traffic, including source and destination IP addresses, ports, protocols, and other relevant details. This information can be collected and stored in the OCI Logging service, where you can analyze and gain insights into the network communication patterns between your services. By leveraging the built-in capabilities of the OCI Logging service and enabling VCN flow logs, you can fulfill the security team’s requirement for network communication analysis in a cost-effective manner. This eliminates the need for deploying additional third-party logging services or tools, reducing complexity and potential costs associated with their setup and maintenance. The other options mentioned are not the most cost-effective or suitable solutions for analyzing network communication in this scenario: Deploying a third-party logging service and aggregating the network flow logs would introduce additional costs and complexity, which may not be necessary considering the built-in capabilities provided by OCI. Rewriting the application to send logs to an outside log aggregator would not directly address the requirement of analyzing network communication between the services. It would focus more on application-level logs rather than network-level analysis. Deploying Wireshark and intercepting packets would require additional infrastructure setup and maintenance, which may not be the most cost-effective approach for network analysis in this scenario.

NO.63 A developer using Oracle Cloud Infrastructure (OCI) API Gateway needs to authenticate the API requests to their web application. The authentication process must be implemented using a custom scheme which accepts string-based parameters from the API caller. Which approach should the developer use in this scenario?

Create a cross account functions authorizer.

Create an authorizer function using OCI Identity and Access Management 91AM) based authentication.

Create an authorizer function using request header authorization.

Create an authorizer function using token-based authorization.

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