Application Deployment

A developer wants to deploy a stateless application as a set of identical pods. They need the pods to be distributed across nodes and have stable network identities. Which resource should they use?

A company wants to ensure zero-downtime deployments for a stateless web application running in Kubernetes. They have a single Deployment with 3 replicas and a Service of type LoadBalancer. Which strategy should they use to achieve this?

Match each volume type to its use case.

You have a Deployment named 'frontend' with 4 replicas. You want to perform a rolling update with the following constraints: the number of pods above the desired count should never exceed 1, and the number of unavailable pods should never exceed 0. Which deployment strategy configuration achieves this?

You have a Deployment 'app' with the following strategy configuration: 'type: RollingUpdate', 'rollingUpdate: {maxSurge: 0, maxUnavailable: 1}'. You update the container image. What is the behavior during the update?

You need to perform a canary deployment using a Service and two Deployments (stable and canary). Which TWO resources or configurations are typically used to route a percentage of traffic to the canary? (Select TWO)

During a rolling update, you want to ensure that at most 2 pods are unavailable at any time. Which field should you set in the Deployment spec?

You are using a canary deployment pattern with two Deployments: 'web-stable' (version 1) and 'web-canary' (version 2). Both have the label 'app: web'. The Service 'web-svc' selects pods with 'app: web' and 'version: stable'. How do you route traffic to the canary?

Which TWO of the following are true about Kustomize overlays? (Select 2)

You are performing a canary deployment using two Deployments: 'app-stable' (replicas: 9) and 'app-canary' (replicas: 1), both with label 'app: myapp'. A Service selects pods with 'app: myapp' and 'version: stable'. How can you route traffic to the canary?

You want to perform a canary deployment of a new version of your application. You create a Deployment named 'app-canary' with 1 replica and label 'version: canary'. The existing stable Deployment 'app-stable' has 3 replicas and label 'version: stable'. Both Deployments have the selector 'app: myapp'. You have a Service 'app-service' with selector 'app: myapp, track: stable'. How can you route traffic to the canary?

You are using a canary deployment strategy with Deployments and Services. You have a stable version (v1) and a canary version (v2). Both Deployments have the label 'app: myapp'. The Service selector is 'app: myapp'. How can you route a small percentage of traffic to the canary?

You have a Deployment 'db' that uses a ConfigMap for configuration. You want to update the ConfigMap and roll out the changes to pods without restarting them manually. Which approach should you use?

Which THREE components are essential for setting up Horizontal Pod Autoscaling (HPA) based on CPU utilization? (Select three)

Which of the following are valid methods to perform a blue-green deployment? (Choose TWO)

A Deployment named 'api' has 6 replicas. You want to perform a rolling update with the following constraints: at most 2 pods can be unavailable during the update, and at most 1 extra pod can be created above the desired 6. Which strategy configurations achieve this? (Choose TWO)

You need to perform a blue-green deployment using Deployments and Services. What is the most common approach to switch traffic from the old version (blue) to the new version (green)?

Which TWO statements about kubectl apply vs kubectl create are correct? (Select two)

You have a Deployment 'web-app' with 4 replicas. You want to perform a rolling update such that during the update, at most 2 pods can be unavailable and at most 5 pods can be above the desired replica count. Which TWO of the following strategy configurations achieve this?

Which THREE of the following are valid reasons to use an annotation in Kubernetes?