Oracle Cloud Infrastructure 2023 DevOps Professional Question and Answers

Oracle Cloud Infrastructure 2023 DevOps Professional

Last Update Apr 28, 2024
Total Questions : 100

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Questions 1

A company is having trouble keeping up with competitors and wants to know more about DevOps solutions. What does Oracle Cloud Infrastructure (OCI) DevOps do that can help?

Options:

OCI DevOps helps with security issues and ensures integrated security through auto-mated Jira notifications.

OCI DevOps assists with high failure rate and outages through Anomaly Detection. Monitoring Services and Cloud Analytics

OCI DevOps helps with deployment delays by ensuring rapid and continuous integration and delivery through CI/CD pipelines:

OCI DevOps helps with erratic code issues by ensuring speedy code execution through shared repos and tight operational feedback loops

Discussion 0

Questions 2

Your team is responsible for deploying a new version of an application that is being used by your company's finance department. The application is critical to the department's operations, and any downtime could have serious consequences. What is the recommended approach in OCI for creating identical blue-green environments for this scenario?

Options:

Deploy the application to two separate OCI tenancies to ensure complete isolation be-tween environments.

Use a single OCI region and create two separate Virtual Cloud Networks (VCNs), one for the blue environment and one for the green environment.

Use a single Kubernetes cluster with two node pools, one for the blue environment and one for the green environment.

Use two separate Oracle Container Engine for Kubernetes (OKE) clusters to ensure complete separation between environments.

Discussion 0

Questions 3

You host a microservices based application on the Oracle Cloud Infrastructure Con-tainer Engine for Kubernetes (OKE). Due to increased popularity of your application, you need to provision more resources to meet the growing demand. Which three statements are true for the given scenario?

Options:

Enable autoscaling by autoscaling Pods by deploying Kubernetes Autoscaler to collect resource metrics from each worker node in the cluster.

Enable cluster autoscaling by autoscaling node pools by deploying the Kubernetes Autoscaler to automatically resize a cluster's node pools based on application workload demands.

Scale a cluster up and down by changing the number of node pools in the cluster.

Enable cluster autoscaling by autoscaling node pools by deploying Kubernetes Metrics Server and using the Kubernetes Vertical Pod Autoscaler to adjust the resource re-quests and limits.

Scale a node pool up and down to change the number of worker nodes in the node pool, and the availability domains and subnets in which to place them.

Discussion 0

Answer:

A, B, E

Explanation:

The statements that are true for scaling an OKE cluster to meet growing demand are:

Enable autoscaling by autoscaling Pods by deploying Kubernetes Autoscaler to collect resource metrics from each worker node in the cluster. Pod autoscaling is a feature that allows you to adjust the number of pods in a deployment or replica set based on the CPU or memory utilization of the pods. You can use Kubernetes Autoscaler, which is an add-on component that you can install on your OKE cluster, to collect resource metrics from each worker node and scale the pods up or down accordingly.
Enable cluster autoscaling by autoscaling node pools by deploying the Kubernetes Autoscaler to automatically resize a cluster’s node pools based on application workload demands. Cluster autoscaling is a feature that allows you to adjust the number of nodes in a node pool based on the pod requests and limits of the pods running on the nodes. You can use Kubernetes Autoscaler, which is an add-on component that you can install on your OKE cluster, to monitor the pod requests and limits and scale the node pools up or down accordingly.
Scale a node pool up and down to change the number of worker nodes in the node pool, and the availability domains and subnets in which to place them. A node pool is a group of worker nodes within an OKE cluster that share the same configuration, such as shape, image, subnet, etc. You can use OCI Console, CLI, or API to scale a node pool up and down by adding or removing worker nodes from it. You can also change the availability domains and subnets for your node pool to distribute your nodes across different fault domains. Scaling a node pool allows you to adjust your cluster capacity according to your application workload demands. Verified References: [Scaling Clusters - Oracle Cloud Infrastructure Container Engine for Kubernetes], [Scaling Node Pools - Oracle Cloud Infrastructure Container Engine for Kubernetes]

Questions 4

As a DevOps engineer working on managing clusters on the OCI platform for your organization, which statement is true about managing cluster add-ons in OCI OKE Cluster?

Options:

When you disable a cluster add-on using the console, the add-on is completely removed from the cluster

When creating a new cluster, essential cluster add-ons cannot be disabled.

When creating a new cluster, essential cluster add-ons are set to manually update.

When enabling a cluster add-on, you cannot configure the add-on by specifying one or more key/value pairs to pass as arguments to the cluster add-on.

Discussion 0

Questions 5

As a DevOps engineer working on an OCI project, you're setting up a deployment pipeline to automate your application deployments. Which statement is false about deployment pipeline in OCI DevOps?

Options:

You can add an Approval stage that pauses the deployment for a specified duration for manual decision from the approver

Using deployment pipeline, you can deploy artifacts to Kubernetes cluster, Instance Group, and OCI Compute Instances.

You can add a Traffic Shift stage that routes the traffic between two sets of backend IPs using preconfigured load balancer and listener.

You can add a Wait stage that adds a specified duration of delay in the pipeline.

Discussion 0

Questions 6

XYZ Inc. is using Oracle Cloud Infrastructure (OCI) DevOps Project to deploy their e-commerce application to production. They recently received a customer request to add a new feature to the application, which requires modification of the existing code. How can XYZ Inc. use OCI services to automatically push the modified code changes to the production?

Options:

Use the OCI DevOps Triggers feature to automate build and deployment on every code commit.

Manual builds can be run from the OCI DevOps Build Pipelines to deploy the changes.

Use OCI Ansible modules to automate the deployment of the new changes to the production environment.

Use the OCI Resource Manager to automatically apply the changes to the production environment after successful testing.

Discussion 0

Questions 7

Which statement is true regarding the Oracle Cloud Infrastructure (OCI) DevOps service?

Options:

Users can migrate workloads from on-premises, but not from other cloud platforms.

Users can avoid downtime during deployments and automate the complexity of updating applications.

Users can view limited lifecycle phases as needed to assess application performance.

Users can only store code on public repositories and cannot access internal code repositories.

Discussion 0

Questions 8

You are tasked with creating and managing a microservices-based application using Oracle Cloud Infrastructure Registry (OCIR). Which three statements accurately describe OCIR capabilities?

Options:

You can create up to 500 repositories in Oracle Cloud Infrastructure Registry, consuming a maximum of 500 GB in total, in every enabled region of your tenancy.

Container Registry can be used as a public docker registry, allowing any internet user with the appropriate URL knowledge to pull images from public repositories.

In each region that is enabled for your tenancy, you are charged for stored images and managed OCIR services.

When intending to push images to the root compartment, creating an empty repository in advance is not strictly necessary.

Docker images and manifest lists (also known as multi-architecture images) can be stored in Oracle Cloud Infrastructure Registry as long as they adhere to Open Container Initiative specifications. Helm charts aren't included.

Discussion 0

Questions 9

Which two are prerequisites for creating a secret in Oracle Cloud Infrastructure Vault service?

Options:

The user must create a compute instance to run the secret service.

You must have a Vault managed key to encrypt the secret.

You must have the required permissions to create and manage secrets in the Vault service.

You must first create a hash digest of the secret value.

You must have an auth token to encrypt the secret.

Discussion 0

Questions 10

Your on-premises private cloud environment consists of virtual machines hosting a set of ap-plication servers. These VMs are currently monitored using a 3rd party monitoring tool for resource metrics such as CPU and Memory utilization and Disk-Write IOPS. You have created a DevOps Project that includes a workflow to migrate these application servers into Oracle Cloud Infrastructure (OCI) compute instances with a few requirements: - Ensure continuous monitoring is enabled, so the current monitored resource metrics are continuously collected and reported. - Monitor the end-to-end deployment pipeline during the migration workflow and notify with email on each execution. - Notify with email for any new OCI Object Storage buckets created after the migration workflow. What should be your recommended solution to achieve these requirements?

Options:

Configure both 3rd party monitoring tool and OCI Compute Agent on OCI compute instances to collect required resource metrics. Use OCI Events service (com.oraclecloud.devopsdeploy.createdeployment) with Notifications service to track and notify all changes occurring in the target OCI environment.

Configure OCI Compute agent on on-premises VMs and OCI compute instances to collect required resource metrics. Use OCI Events service to track the end-to-end deployment process (com.oraclecloud.devopsdeploy.createdeployment) and creation of new bucket (com.oraclecloud.objectstorage.createbucket Use OCI Notifications and Events services to notify these changes.

Configure OCI Compute agent on on-premises VMs to collect required resource met-rics. Lise OCI Events service to track all deployments (com.oraclecloud.devopsdeploy.createdeployment) with OC! Notifications service to track and report all changes occurring the target environment.

Configure OCI Compute agent on OCI compute instances to collect required resource metrics. Use OCI Events and Functions services to track the end-to-end deployment pipeline (com.oraclecloud.devopsdeploy.createdeployment) and creation of new buckets (com.oraclecloud.objectatorage.createbucker Use OCI Notifications and Events services to notify these changes.

Discussion 0

Questions 11

As a developer working on a software project to be deployed on OKE, you have created a Helm chart for your application. You want to deploy the chart using OCI DevOps service. Which statement is true about deploying a Helm Chart using OCI DevOps service?

Options:

The values.yaml file is a generic file located in the OCI Container Registry. You must create a reference to this file.

The Helm charts must be located in the OCI Container Registry repository for deployment.

You cannot package and push the Helm chart to the Container Registry from the build pipeline.

The Helm Upgrade options cannot be used to change the configuration of the Helm re-lease.

Discussion 0

Questions 12

As a DevOps engineer, you are tasked with implementing a DevSecOps approach in your organization. Which two statements best describe the goal of DevSecOps?

Options:

Prioritize the functional requirements of the application over security.

Find and fix security issues early in the software development process.

Codify security as part of the larger goal structure of DevOps.

Frame security as an individual responsibility of the security team alone.

Create applications that are faster and more efficient without regard for security concerns.

Discussion 0

Questions 13

What is a prerequisite for creating a secret in Oracle Cloud Infrastructure Vault service?

Options:

The user must create a compute instance to run the secret service.

You must have a Vault managed key to encrypt the secret.

You must create a digest hash of the secret value.

You must unseal the Vault by using Shamir's secret sharing

Discussion 0

Questions 14

What are the two items required to create a rule for the Oracle Cloud Infrastructure Events Service? (Choose two.)

Options:

Service Connector

Rule Conditions

Actions

Management Agent Cloud Service

Install Key

Discussion 0

Questions 15

As a DevOps engineer working on a project to deploy container images to Oracle Cloud Infrastructure Container Registry (OCIR), you have the option to create an empty repository in advance or allow the system to create a repository automatically on first push. Which statement about automatic repository creation is true?

Options:

If you select the "Create repositories on first push root compartment" option and push an image with a command that includes the name of a repository that doesn't already exist, a new private repository is created automatically in the root compartment.

Automatic repository creation is triggered by running the command docker push .ocir.oci//:, even if the repository doesn't exist.

Automatic repository creation only works for repositories in the normal user compartment.

To create a new public repository in the root compartment automatically, you need not belong to the tenancy's Administrators group or have the REPOSITORY MANAGE permission on the tenancy.

Discussion 0

Questions 16

You need to create a secret in Oracle Cloud Infrastructure in vault service. Which of the fol-lowing is a prerequisite? (Choose the best answer.)

Options:

Vault managed key to encrypt the secret

You need to unlock the vault using AES secret sharing.

To create hash digest, secret value is required

The user need to create OCI object storage to run secret service

Discussion 0

Questions 17

In the DevOps lifecycle, what is the difference between continuous delivery and continuous deployment?

Options:

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

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.

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

Discussion 0

Questions 18

In OCI Secret management within a Vault, you have created a secret and rotated the secret one time. The current version state shows: Version Number Status 2 (latest) Current 1 Previous In order to rollback to version 1, what should the Administrator do?

Options:

Create a new secret version 3 Pending Copy the contents of Version 1 Into version 3.

From the version menu, select "Promote to current.

(Correct)

From the version 2 latest menu, sect Road and select version when given the option.

deprecate version 2 (latest), Create a new secret version 3, create soft link for version-3 to version 1.

Discussion 0

Questions 19

Which of the following statements is TRUE with regard to OCI DevOps ? (Choose the best answer.)

Options:

OCI DevOps is an orchestration tool for deployments

OCI DevOps uses pipelines to manage infrastructure

OCI DevOps automates SDLC which is Cl/CD platform for developers

OCI DevOps is cloud based to build softwares

Discussion 0

Questions 20

How does the Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) Cluster Autoscaler determine when to create new nodes for an OKE cluster?

Options:

When the resource requests from pods exceed a configured threshold.

When the rate of requests to the application crosses a configured threshold.

When the custom metrics from the services exceed a configured threshold.

When the CPU or memory utilization crosses a configured threshold.

Discussion 0

Questions 21

You are a DevOps engineer working on a project that requires you to push and pull Docker images to and from Oracle Cloud Infrastructure Registry (Container Registry) using Docker CLI. You have been given access to Container Registry and have installed Docker CLI on your local machine. Which should you create and use to securely authenticate and store your Docker image in a private Docker registry in OCI?

Options:

Master Encryption Key in OCI Vault

Auth Token

JSON Web Token

Docker Registry Secret

SSH Key Pair

Discussion 0

Questions 22

You host your application on a stack in Oracle Cloud Infrastructure (OCI) Resource Manager. Due to recent growth in your user base, you decide to add a CIDR block to your VCN, add a subnet, and provision a compute instance in it. Which statement is true?

Options:

You need to provision a new stack because Terraform uses immutable infrastructure.

You can provision the new resources in the OCI console and add them to the stack with Drift Detection.

You cannot provision the new resources in the OCI console first, then later add them to the Terraform configuration and state.

You can make the changes to the Terraform code, run an Apply job, and Resource Manager will provision the new resources.

Discussion 0

Questions 23

Which is a proper rule to follow when creating container repositories inside the Oracle Cloud Infrastructure (OCI) Registry?

Options:

When naming a container repository, you may use capital letters but not hyphens. For example, you may use BGdevops-storefront, but not bgdevops/storefront.

When creating a container repository, check the Immutable Artifacts box, as it keeps other developers from altering the files.

You must use a separate container repository for each image, but multiple versions of that image can be in a single repository.

You must use the OCI DevOps Managed Build stage to define artifacts in the artifact and container repositories and map the build pipeline outputs to them.

Discussion 0

Questions 24

You are a DevOps project administrator. You are creating Oracle Cloud Infrastruc-ture (OCI) Identity and Access Management (IAM) policies that will be used in a DevOps CI/CD pipeline for deployment to an Oracle Container Engine for Kubernetes (OKE) environment. Which OCI IAM policy can be used?

Options:

Allow group to manage devops-family in compartment

Allow group to manage all-resources in compartment

Allow dynamic-group to manage devops-family in compartment

												D.  
  Allow dynamic-group


					

						
						
						 Discussion 0


			

				
					
						Questions 25					
					
						You have a stack in Oracle Cloud Infrastructure (OCI) Resource Manager that is co-managed by multiple teams. Which statement is true?
					
					
						Options:
												A.  
  The resources in the stack can still be edited or destroyed through the OCI console, causing Resource Manager's state to be out of sync.
												B.  
  The resources in the stack can no longer be edited or destroyed through the Terraform CLI on a local machine.
												C.  
  Resources provisioned by Resource Manager can only be managed through Resource Manager, preventing the state from becoming out of sync.
												D.  
  The Terraform state may become corrupted if multiple people attempt Apply jobs in Resource Manager simultaneously.
																							
					

						
						
						 Discussion 0
						
						
						
													

					
				
			

				
					
						Questions 26					
					
						As a small company that wants to adopt a DevOps framework and a consumption-based pricing model, which Oracle Cloud Infrastructure service can be used as a target deployment environment, providing features like automated rollouts and rollbacks, self-healing of failed containers, and configuration management, without the overhead of managing security patches and scaling?
					
					
						Options:
												A.  
  OCI Container Engine for Kubernetes (OKE) with managed nodes
												B.  
  Compute Instance Group
												C.  
  OCI Container Instances
												D.  
  OCI Serverless Functions
												E.  
  OCI Container Engine for Kubernetes (OKE) with virtual nodes
																	
					

						
						
						 Discussion 0
						
						
						
													

					
				
			

				
					
						Questions 27					
					
						While adding variables to your build_spec.yaml file, you made a mistake that resulted in a failed build pipeline. What is the error you could have made?
					
					
						Options:
												A.  
  Used vaultVariable to hold the content of the vault secrets in OCID format
												B.  
  Defined variables as exportedVariables to make them available in subsequent stages of the same pipeline
												C.  
  Defined parameters such as the $ (VARIABLE_NAME) file and later assigned their values in the Parameters tab of the build pipeline
												D.  
  Defined a field such as type: DOCKER IMAGE in the outputArtifacts: section to specify the docker image produced by the Build stage
																							
					

						
						
						 Discussion 0
						
						
						
													

					
				
			

				
					
						Questions 28					
					
						Using the Oracle Cloud Infrastructure (OCI) Vault service, you created a secret and rotated. one time. The current version state shows: Version Number : 2 (latest) | Status: Cur-rent Version Number: 1 | Status: Previous In order to rollback to version 1, what should you do?
					
					
						Options:
												A.  
  Deprecate version 2 (latest). Create new Secret Version 3. Create soft link from version 3 to version 1.
												B.  
  From the version 1 menu, select "Promote to Current".
												C.  
  Create a new secret version 3 and set it to Pending. Copy the contents of Version 1 into version 3.
												D.  
  From the version 2 (latest) menu, select "Rollback..." and select version 1 when given the option.
																							
					

						
						
						 Discussion 0
						
						
						
													

					
				
			

				
					
						Questions 29					
					
						A fresher joined a company who made a mistake while ding yaria: to build_spec.yaml file. As a consequence, build pipelines started failing. What is the root cause for this error commited by the fresher? (Choose the best answer.)
					
					
						Options:
												A.  
  No errors. False alarm by OCI monitoring service
												B.  
  Corrupt build_spec.yaml
												C.  
  Multiple comment line in build_spec.yaml file
												D.  
  Expected ion-exported variable of a build to be persistent throughout multiple pipeline
																							
					

						
						
						 Discussion 0
						
						
						
													

					
				
			

				
					
						Questions 30					
					
						You are a developer and have been asked to develop an e-commerce website for your organi-zation. It must support a variety of clients including desktop browsers, mobile browsers and native mobile applications. Which two approaches can you use to build the application to achieve deployment independence, easier technology upgrades, and resiliency to architecture changes? (Choose two.)
					
					
						Options:
												A.  
  Use monolithic approach, as it allows you to easily redeploy your applications to per-form frequent updates.
												B.  
  Choose monolithic approach over microservices as it has better fault isolation capability.
												C.  
  Use microservices architecture as it eliminates any long term commitment to a technology stack.
												D.  
  Implement each module as an independent service/process which can be replaced, up-dated, or deleted without disrupting the rest of the application:
												E.  
  Build the application as a single unit and use container technology to deploy it.
												F.  
  Use monolithic approach to as it makes it easier to incrementally adapt to newer technology.
											
					

						
						
						 Discussion 0
						
						
						
														Answer:
							C, D
														Explanation:
							Explanation: Explanation
The two approaches that can be used to build the e-commerce website and achieve deployment in-dependence, easier technology upgrades, and resiliency to architecture changes are: Implement each module as an independent service/process: This approach is aligned with the microservices architecture, where each module or functionality is developed and deployed as a separate service. This al-lows for independent updates, replacements, or deletions of specific modules without disrupting the rest of the application. It provides flexibility, scalability, and easier technology upgrades by enabling the use of different technologies and frameworks for different services. Use microservices architec-ture: Microservices architecture involves breaking down the application into smaller, loosely coupled services that communicate with each other through APIs. This architecture promotes independent deployment of services, making it easier to update or modify specific services without affecting the entire application. It allows for better scalability, fault isolation, and resiliency to architecture changes. The monolithic approach, where the entire application is built as a single unit, is not suitable for achieving the mentioned goals. It can lead to challenges in deployment independence, technology upgrades, and adaptability to newer technologies.

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