300-910 Free Practice Test

ConfigMap keys have been mapped to different file names using the volumes.configMap.items field. What is the result if a wrong ConfigMap key is specified?

1. A. The default path is not used.
2. B. The volume is not created.
3. C. The volume is created.
4. D. The volume is created with errors.

Correct Answer: A

Which description of a canary deployment is true?

1. A. deployment by accident
2. B. deployment that is rolled back automatically after a configurable amount of minutes
3. C. deployment relating to data mining development
4. D. deployment to a limited set of servers or users

Correct Answer: D

A developer has created a deployment that should launch a pod to run their database service. The pod should launch with a metadata name of “Cisco-DB," and the developer has added it to the "Cisco" namespace in their deployment.
Which Kubernetes command confirms that the service is running and usable?

1. A. kubectl -n Cisco get services | grep “Cisco-DB”
2. B. kubectl -n Cisco get pods | grep “Cisco-DB”
3. C. kubectl get pods | grep “Cisco-DB”
4. D. kubectl -n Cisco get service | grep “Cisco-DB”

Correct Answer: C

Which two actions help limit the attack surface of your Docker container? (Choose two.)

1. A. Run only a single service in each container.
2. B. Run all services in a single image.
3. C. Use version tags for base images and dependencies.
4. D. Use Kali Linux as a base image.
5. E. Download images over HTTPS supporting sites.

Correct Answer: CE

What is the effective way to manage computing costs in a public cloud?

1. A. Monitor data transfers to minimize cost.
2. B. Use dedicated hardware for all instances.
3. C. Select the largest instance option available in order to pay for only one instance.
4. D. Make use of elastic services and scale on demand.

Correct Answer: D