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WorksheetsCloud Native Computing Foundation Lesson 3
Total questions: 21
Worksheet time: 9mins
when operating an application with docker there are 3 main objects required. check the ones that apply
Dockerfile
Docker image
Docker registry
Docker OS
Dockerfile contains a set of instructions.
True
False
Docker image is created from?
Docker registry
Docker file
Kubernetes Cluster
None
In a Dockerfile which instructions executes a command when the container starts?
FROM
RUN
CMD
LABEL
A Docker image is used to spin up a runnable instance of an application
True
False
what is the consequence of this command "Docker Build"?
Builds an image
Builds a Dockerfile
Builds a container
Builds a cluster
What is the main function of the Docker registry?
Store images
Distribute Images
Neither A nor B
Both A and B
what is the consequence of the command "Docker tag"?
Tags a container
Tags a cluster
Tags an Image
None
Which command gets an image to the container registry?
Docker Send
Docker Move
Docker Push
None
what is the full meaning of OCI
(a)
It is recommended to store the dependencies of an application in a "requirements.txt" file
True
False
Which of the following is not a container orchestrator?
Docker Swarm
Apache Mesos
Core OS Feet
None
Kubernetes is an OpenSource Project that resides under the CNCF umbrella
True
False
Kubernetes can be implemented in any group of servers, be it public, private, or hybrid cloud
True
False
Which of the following is not a functionality Kubernetes uses to handle container failures?
Replica Set
Readiness
Kubeadm
Liveness Probe
With cluster autoscaler, the cluster size is inversely proportional to the traffic it needs to handle.
True
False
How many types of nodes a Kubernetes cluster contain?
2
3
5
1
where does the master node reside?
Control plane
Data plane
Both A and B
none
Which component exposes the nucleus of the cluster and handles and triggers any operation within the cluster?
API server
Scheduler
Controller Manager
none
Where does the kubelet reside?
Control Plane
Data Plane
Both A and B
Neither A nor B
which of the following tools can not be used to produce a production-grade cluster?
Kubeadm
Kubespray
Kops
None
