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Questions # 1:

You’re using Oracle Cloud Infrastructure (OCI) DevOps to deploy your application on an Oracle Container Engine for Kubernetes (OKE) environment. You push your code to the OCI Code Repository, add all the required stage and configure the build and deployment pipeline. When you run the build, you see "unable to clone the repository" error.

What could the configuration error be?

Options:

The Docker image used in the pipeline is incompatible with the OKE environment.

Dynamic Groups and OCI IAM policies to access the code repository are missing.

The OKE cluster is not configured to allow external access to the code repository.

CA bundle for Transport Layer Security (TLS) verification to download the build source during the build run is missing.

Questions # 2:

A DevOps engineer is asked to access an Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) cluster to deploy new applications and manage existing ones.

Which two statements are true? (Choose two.)

Options:

To access the cluster using kubectl, you have to set up a Kubernetes configuration file for the cluster. The kubeconfig file by default is named config and stored in the $HOME/.kube directory.

When a cluster’s Kubernetes API endpoint has a public IP address, you can access the cluster in Cloud Shell by setting up a kubeconfig file.

Generating an API signing key pair is not required while setting up cluster access using local machine if the public key is not already uploaded in the console.

The only available option when a cluster’s Kubernetes API endpoint has a public IP address is to control the cluster locally using kubectl and the Kubernetes Dashboard.

To access the cluster using kubectl, you have to set up a Kubernetes manifest file for the cluster. The kubeconfig file by default is named config and stored in the $HOME/.manifest directory.

Questions # 3:

Which of the following is NOT considered a DevOps resource in the context of the OCI DevOps project service?

Options:

Environments

API integrations

Build pipelines

Code repositories

Questions # 4:

A software development team is working on a prototype using Node.js and MongoDB as their programming language and database, respectively. They need to develop and test isolated web applications or RESTful APIs. They are looking for a simple, quick, and secure way to run containers without managing any servers.

Which OCI service is best suited for this use case?

Options:

OCI Functions

Container Instances

OCI DevOps Project

Compute Instances

Questions # 5:

As a DevOps Engineer, you are tasked with explaining the key concepts of Terraform to a new team member. You want to ensure they understand the fundamental concepts of Terraform.

Which of the following best describes the purpose of Terraform variables?

Options:

Terraform variables are used to manage the life cycle of Terraform resources.

Terraform variables are used to define input values for Terraform configurations, allowing for customization and reuse of infrastructure code.

Terraform variables are used to output the final state of the infrastructure after deployment.

Terraform variables are used to define the structure and organization of Terraform configuration files.

Questions # 6:

You have been asked to provision a new production environment on Oracle Cloud Infrastructure (OCI). After working with the solution architect, you decide that you are going to automate this process.

Which OCI service can help automate the provisioning of this new environment?

Options:

OCI Streaming Service

Oracle Functions

Oracle Container Engine for Kubernetes

OCI Resource Manager

Questions # 7:

You are a DevOps project administrator. You are creating Oracle Cloud Infrastructure (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 dynamic-group to manage devops-family in compartment

												 C. Allow dynamic-group  to manage all-resources in compartment 
												 D. Allow group  to manage all-resources in compartment


					
						
						
						

												
							
						
						
							
								
					          		Answer
					        	
									
									A
								
								
																			
																	
							
							
														
					        	
					         		Explanation
					        	
					        	
					          		Choosen policy specifies an IAM policy allowing the group (in this case, the deployment pipeline) to manage devops-family resources within a specific compartment. The devops-family is a group of services that includes the OCI DevOps service, which is suitable for managing CI/CD pipelines, deployments, and related operations for an OKE environment.


			
			
				
			         Questions # 8:
			    

				
					
					
						You host your application on a stack in Oracle Cloud Infrastructure (OCI) Resource Manager. Because of 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:
												 A. You need to provision a new stack because Terraform uses immutable infrastructure.
												 B. You can make the changes to the Terraform code, run a Drift Detection job, and Resource Manager will provision the new resources.
												 C. You need to provision the new resources in the OCI console first, then add them later to the Terraform configuration and state.
												 D. You can make the changes to the Terraform code, run an Apply job, and Resource Manager will provision the new resources.
																							
					
						
						
						

												
							
						
						
							
								
					          		Answer
					        	
									
									D
								
								
																			
																	
							
							
														
					        	
					         		Explanation
					        	
					        	
					          		Oracle Cloud Infrastructure (OCI) Resource Manager uses Terraform to manage infrastructure resources. If you need to add new resources (e.g., a new CIDR block, subnet, and compute instance), you can simply make the necessary changes to the Terraform code defining the stack.
After modifying the Terraform configuration to include the new resources, you can run an Apply job in Resource Manager. The Apply job will provision the new resources in your OCI environment according to the updated Terraform code.
					        	
					      	
														

						

					
				
				
			
			
			
				
			         Questions # 9:
			    

				
					
					
						A small company is moving to a DevOps framework to better accommodate their intermittent workloads, which are dynamic and irregular. They want to adopt a consumption-based pricing model.
Which Oracle Cloud Infrastructure service can be used as a target deployment environment?
					
					
						Options:
												 A. Virtual machine compute instance
												 B. Oracle Kubernetes (OKE)
												 C. Bare metal compute instance
												 D. Functions
																							
					
						
						
						

												
							
						
						
							
								
					          		Answer
					        	
									
									D
								
								
																			
																	
							
							
														
					        	
					         		Explanation
					        	
					        	
					          		Oracle Cloud Infrastructure Functions is a serverless compute service that supports a consumption-based pricing model. This means that you are only charged for the compute resources when your function is invoked. This is ideal for intermittent, dynamic, and irregular workloads since the company does not need to provision infrastructure in advance, and costs are directly tied to usage.
					        	
					      	
														

						

					
				
				
			
			
			
				
			         Questions # 10:
			    

				
					
					
						As a cloud engineer, you are responsible for managing a Kubernetes cluster on the Oracle Cloud Infrastructure (OCI) platform for your organization. You are looking for ways to ensure reliable operations of Kubernetes at scale while minimizing the operational overhead of managing the worker node infrastructure.
Which cluster option is the best fit for your requirement?
					
					
						Options:
												 A. Using OCI OKE managed nodes with cluster autoscalers to eliminate worker node infrastructure management
												 B. Using OCI OKE virtual nodes to eliminate worker node infrastructure management
												 C. Using Kubernetes cluster add-ons to automate worker node management
												 D. Creating and managing worker nodes using OCI compute instances
																							
					
						
						
						

												
							
						
						
							
								
					          		Answer
					        	
									
									B
								
								
																			
																	
							
							
														
					        	
					         		Explanation
					        	
					        	
					          		Step 1: Understanding the Requirement
The goal is to ensurereliable operations of Kubernetes at scalewhileminimizing the operational overhead of managing worker node infrastructure. In this context, a solution is needed that abstracts away the complexity of managing, scaling, and maintaining worker nodes.
Step 2: Explanation of the Options
A. Using OCI OKE managed nodes with cluster autoscalers
While this option provides managed node pools and uses cluster autoscalers to adjust resources based on demand, it still requires some level of management for the underlying worker nodes (e.g., patching, upgrading, monitoring).
Operational overhead:Moderate.
B. Using OCI OKE virtual nodes
Virtual nodes in OCI OKE are aserverless option for running Kubernetes pods. They remove the need to manage underlying worker nodes entirely.
OCI provisions resources dynamically, allowing scaling based purely on pod demand.
There’s no need for node management, patching, or infrastructure planning, which perfectly aligns with the requirement to minimize operational overhead.
Operational overhead:Minimal.
Best Fit for This Scenario:Since the requirement emphasizes minimizing operational overhead, this is the ideal solution.
C. Using Kubernetes cluster add-ons to automate worker node management
Kubernetes add-ons likeCluster AutoscalerorNode Problem Detectorhelp in automating some aspects of worker node management. However, this still requires managing worker node infrastructure at the core level.
Operational overhead:Moderate to high.
D. Creating and managing worker nodes using OCI compute instances
This involves manually provisioning and managing compute instances for worker nodes, including scaling, patching, and troubleshooting.
Operational overhead:High.
Not Suitable for the Requirement:This option contradicts the goal of minimizing operational overhead.
Step 3: Why Virtual Nodes Are the Best Fit
Virtual Nodes in OCI OKE:
Virtual nodes provideserverless compute for Kubernetes pods, allowing users to run workloads without provisioning or managing worker node infrastructure.
Scaling: Pods are automatically scheduled, and the required infrastructure is dynamically provisioned behind the scenes.
Cost Efficiency: You only pay for the resources consumed by the running workloads.
Use Case Alignment: Eliminating the burden of worker node infrastructure management while ensuring Kubernetes reliability at scale.
Step 4: References and OCI Resources
OCI Documentation:
OCI Kubernetes Virtual Nodes
OCI Container Engine for Kubernetes Overview
Best Practices for Kubernetes on OCI:
Best Practices for OCI Kubernetes Clusters
					        	
					      	
														

						

					
				
				
			
			
				
			
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