Quiz
Kubernetes
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Questions in this quiz (23)
1Which feature in Kubernetes assigns pods to a node at runtime?
- Aservice discovery
- Bcontainer scheduling
- Cscalability and availability
- Dflexibility and modularization
2Why do organizations use containers?
- Ato tie infrastructure to the entire guest operating systems with an unshared kernel
- Bto build a larger ecosystem of a collection of Docker images in the Docker Hub
- Cto build legacy applications to use in macroservices-based architecture
- Dto build applications to incorporate a microservices-based architecture
3Which statement is true regarding the difference between a virtual machine and a container?
- AA container includes all the binaries and libraries that would exist on the OS.
- BA container includes many applications.
- CThe terms container and virtual machine are used interchangeably.
- DA container shares the kernel with other containers.
4How would you best describe Kubernetes?
- Aa subscription platform designed to manually deploy scaling and operating applications within containers
- Ban open-source platform designed for manually deploying, scaling, and operating application containers
- Ca subscription platform designed to automate deploying, scaling, and operating application containers
- Dan open-source platform designed to automate deploying, scaling, and operating application containers
5Two features that allow Kubernetes Clusters to scale are _____ and _____.
- Aflexibility; application upgrades
- Bregistration; discovery
- Cpersistent storage; modularity
- Dscalability; availability
6In a Kubernetes model, what is the simplest unit that you can interact with that represents one running process in your cluster?
- Aa container
- Ba kublete
- Ca pod
- Da node
7Where do applications operate within Kubernetes?
- AWorker nodes
- BScheduler
- CAPI Server
- DPods
8Review the Kubernetes architecture in the image below. Which process handles load balancing, network routing, and connection forwarding for applications?
- Athe kubectl process
- Bthe Controller Manager process
- Cthe kubelet process
- Dthe kube-proxy process
9When a pod has been scheduled on a node, and all of its containers are created, which pod life cycle is represented?
- ASucceeded
- BRunning
- CPending
- DFailed
10Why will you create deployments more than anything else?
- AMost applications require scaling deployments.
- BMost applications are package deployments.
- CMost deployments are scaling a ReplicaSet.
- DMost deployments are package applications.
11In which scenario would using namespaces be a great concept?
- Ain a large enterprise where there is one team and many users
- Bin a small organization where there are many teams with one user
- Cin a large enterprise where there are many users and teams
- Din a small organization where there is one team and one user
12What is the purpose of the Podspec YAML file?
- AThe kubelet ensures that the containers described in the Podspecs are running and healthy.
- BThe kubelet uses the Podspecs to ensure the health of containers running on the node that were not created by the API server.
- CThe API server uses the Podspecs to deploy containers to worker nodes.
13How can you verify that Minikube and VirtualBox are talking to each other?
- ARun the command kubectl get nodes.
- BRun the command kubectl get runs.
- CRun the command kubectl get deployments.
- DRun the command kubectl get services.
14Which resource or resources are created in Kubernetes after creating an application resource?
- Athe application resource
- BA pod is created, along with the deployment and an associated ReplicaSet with statuses for each.
- Cthe service and NodePort
- Dthe nodes
15How can you combine the deployment and the service yaml into a single yaml file?
- ARun the command vi helloworld-service.yml.
- BRun the command vi helloworld-all.yml.
- CRun the command vi helloworld-deployment.yml.
- DRun the command vi helloworld-run.yml.
16If you are in Windows and using Powershell, the command docker version will check that _____.
- Athe Docker version is out of date
- Ba new Docker version is available
- CDocker is up and running
- DDocker has been shut down
17How can you create multiple resources through a single deployment in Kubernetes?
- AYou can only create one resource through one deployment at a time.
- BUse the three-dash notation to combine multiple files into a single YAML file.
- CUse kubectl to combine deployments into a single package.
- DUse an external Python script to package deployment files.
18What happens with the command code chmod +x ./kubectl?
- AIt makes the kubectl password protected.
- BIt locks the kubectl.
- CIt turns the kubectl open to edit.
- DIt makes the kubectl executable.
19Why does Kubernetes use a liveness probe?
- Aso you can run updates on the healthy containers and check on the amount of traffic
- Bso you will know when a container is actually ready to start accepting traffic
- Cso you can run a periodic check on a container to make sure the container is still healthy
- Dso you can run a manual check on a container to make sure the probes are still healthy
20Which two specs can be defined for establishing application health checks?
- AhealthcheckProbe and validationProbe
- BinitialDelaySeconds and timeoutSeconds
- CreadinessProbe and livenessProbe
21How are labels added to a running pod?
- Aby relabeling
- Bby labeling
- Cby constructing
- Dby overwriting
22What does running the command kubectl get pods --selector dev-lead=karthik,env=staging allow you to do?
- Aadd multiple labels and search by one label
- Badd one label and search by multiple labels
- Csubtract and search by multiple labels
- Dadd and search by multiple labels
23You have many pods with various labels for each. Which command should be used to find the pods associated with your production environment?
- Aget pods --production
- Bget pods --show-labels
- Cget pods --selector env=production
Information
- Description
- Software Development Computer Science Quiz on Kubernetes, created by Dustin White on 30/12/2021.
- Author
- Dustin White
- Language
- English
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