[Sep-2022] Study resources for the Valid DCA Braindumps! [Q44-Q65]

NO.44 One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: Kubernetes automatically triggers a user-defined script to attempt to fix the unhealthy container.

NO.45 What is the docker command to find the current logging driver for a running container?

NO.46 A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space.
If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?

NO.47 Which of the following is NOT backed up when performing a Docker Trusted backup operation?

NO.48 In the context of a swarm mode cluster, does this describe a node?
Solution: a virtual machine participating in the swarm

NO.49 Will this command mount the host’s ‘/data’ directory to the ubuntu container in read-only mode?
Solution: ‘docker run –volume /data:/mydata:ro ubuntu’

NO.50 A user is having problems running Docker. Which of the following will start Docker in debug mode?

NO.51 Which of the following commands is used to display system-wide Docker configuration on a host?

NO.52 Which one of the following commands will result in the volume being removed automatically once the container has exited?

NO.53 Your organization has a centralized logging solution, such as Splunk.
Will this configure a Docker container to export container logs to the logging solution?
Solution: docker system events –filter splunk

NO.54 The following Docker Compose file is deployed as a stack:

Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. If the test fails, the container will be restarted three times before it gets rescheduled.

NO.55 Is this a type of Linux kernel namespace that provides container isolation?
Solution: Network

NO.56 A docker service ‘web’ is running with a scale factor of 1 (replicas = 1).
Bob intends to use the command ‘docker service update –replicas=3 web’.
Alice intends to use the command ‘docker service scale web=3’.
How do the outcomes oft these two commands differ?

NO.57 Does this command display all the pods in the cluster that are labeled as ‘env: development’?
Solution: ‘kubectl get pods –all-namespaces -I env=development’

NO.58 In the context of a swarm mode cluster, does this describe a node?
Solution: an instance of the Docker engine participating in the swarm

NO.59 What is the docker command to setup a swarm?

NO.60 The Kubernetes yaml shown below describes a clusterIP service.

Is this a correct statement about how this service routes requests?
Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx.

NO.61 A host machine has four CPUs available and two running containers. The sysadmin would like to assign two CPUs to each container.
Which of the following commands achieves this?

NO.62 What is the purpose of a client bundle in the Universal Control Plane?

NO.63 Is this an advantage of multi-stage builds?
Solution: better caching when building Docker images

NO.64 The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this traffic?
Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label

NO.65 You want to create a container that is reachable from its host’s network. Does this action accomplish this?
Solution: Use –link to access the container on the bridge network.