Which of the following is correct about Kubernetes Pods?
- Pods can only contain a single VM
- Pods can only contain a single container
- Pods can contain one or more containers (Ans)
- Pods must contain at least two containers
What is the smallest deployable object in Kubernetes?
- Pod (Ans)
- Replication Controller
- Deployment
- Container
How can you filter the output of a kubectl command to only show a Pod called “mypod”
- kubectl get pods –filter mypod
- kubctl get pods/mypod (Ans)
- kubectl get mypod
Which of the following tools is good for installed Kubernetes in the AWS cloud?
- kops (Ans)
- docker-machine
- kubeaws
- kubectl
Which of the following is a best practice for running workloads on a Kubernetes cluster?
- User workloads should only run on Nodes. (Ans)
- User workloads should only run on Masters.
- User workloads should be evenly balanced across Masters and Nodes.
Which of the following Master components are the front-end to the Kubernetes control plane?
- The Controller Manager
- The apiserver (Ans)
- The Cluster Store
- The Scheduler
Which of the following is the only stateful component on a Kubernetes Master?
- The Cluster Store (Ans)
- The Controller Manager
- The Scheduler
- The apiserver
Which of the following is the most common container runtime on Kubernetes Nodes?
- rkt
- Docker (Ans)
- systemd
- Parallels
Which component of the Kubernetes worker stack implements networking?
- Container runtime
- Kubelet
- kube-proxy (Ans)
Which of the following is the preferred method of issuing work to Kubernetes?
- Via manifest files in a declarative fashion (Ans)
- Via individual commands in an imperative fashion
Which of the following best describes a Pod?
- An isolated instance of Linux like aVirtual Machine
- A unikernel
- A Docker container
- A ring-fenced environment (Ans)
Which of the following is the best option for two containers that need to share memory and access to a common volume?
- Put each container in its own Pod and couple them over the network
- Package them as a deployment
- Rewrite the code so that both services run inside a single container
- Put both container sinde the same Pod (Ans)
Which of the following is a major reason for Kubernetes Services?
- K8s Services allow Pods to scale
- Services are highly available
- Services allow for simple rollbacks
- We cannot rely on Pod IPs (Ans)
How are Services linked to Pods?
- TCP port bindings
- Docker Links
- Label Selectors (Ans)
Which of the following best describes the benefits of Kubernetes Deployment objects?
- Declarative formatting, rolling updates, and simple rollback capabilty (Ans)
- They provide High Availability to the Kubernetes control plane
- Imperative formatting, rolling updates, and simple rollback capabilty
- They hugely simplify the deployment and management of Masters and Nodes
Which component of the Kubernetes Master is responsible for issuing work to Nodes?
- The Scheduler (Ans)
- The controller Manager
- The apiserver
- The Cluster Store
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