CKA Kubernetes Workload Scheduling Quiz

1. True or False: Resource limits prevent a pod from using more than the specified amount of CPU or memory.

True

False

2. What is the primary difference between 'requests' and 'limits' in resource specifications?

Requests guarantee resources; limits cap resource usage

Limits guarantee resources; requests are optional

Requests are for CPU only; limits are for memory

There is no functional difference

3. True or False: Multiple taints can be applied to a single node.

True

False

Submit

5. Which scheduling plugin determines if a pod can fit on a node based on available resources?

ResourceFit

NodeResourcesFit

CapacityCheck

MemoryValidator

Submit

7. True or False: A node selector is more flexible than node affinity.

True

False

8. What does the 'NoSchedule' taint effect do?

Prevents new pods from scheduling on the node

Evicts existing pods immediately

Allows pods with matching tolerations only

Temporarily blocks scheduling operations

9. Which YAML field specifies tolerations for a pod?

Spec.tolerations

Metadata.tolerations

Spec.scheduling.tolerations

Tolerations.list

Submit

11. What is the primary purpose of a NodeSelector in Kubernetes scheduling?

Restrict pod placement to nodes with specific labels

Limit the number of pods on a node

Automatically scale node capacity

Monitor node performance metrics

Submit

13. Which scheduling predicate ensures a pod has sufficient resources on a node?

PodFitsResources

CheckNodeMemory

ResourceAvailability

CapacityValidator

14. What is the effect of a taint with the 'NoExecute' key?

Evicts existing pods that don't tolerate the taint

Prevents new pods from scheduling

Warns users about potential conflicts

Reduces node capacity

Submit

16. True or False: A pod with no tolerations can be scheduled on a node with taints.

True

False

17. Which affinity type allows pods to prefer certain nodes but still schedule elsewhere if necessary?

RequiredDuringSchedulingIgnoredDuringExecution

PreferredDuringSchedulingIgnoredDuringExecution

HardNodeAffinity

StrictNodeAffinity

Submit

19. What do taints prevent in Kubernetes node scheduling?

Pods from being scheduled on a node unless they tolerate the taint

Nodes from communicating with each other

Resource metrics from being collected

Service discovery mechanisms

20. Which field in a pod spec defines resource requests for CPU and memory?

Resources.limits

Resources.requests

Scheduling.requirements

Constraints.allocation

CKA Kubernetes Workload Scheduling Quiz

1. True or False: Resource limits prevent a pod from using more than the specified amount of CPU or memory.

2.

What first name or nickname would you like us to use?

2. What is the primary difference between 'requests' and 'limits' in resource specifications?

3. True or False: Multiple taints can be applied to a single node.

4. The 'preferNoSchedule' effect is a soft constraint similar to ____.

5. Which scheduling plugin determines if a pod can fit on a node based on available resources?

6. Priority and preemption allow higher-priority pods to evict ____.

7. True or False: A node selector is more flexible than node affinity.

8. What does the 'NoSchedule' taint effect do?

9. Which YAML field specifies tolerations for a pod?

10. Pod anti-affinity is used to keep pods ____.

11. What is the primary purpose of a NodeSelector in Kubernetes scheduling?

12. The default scheduler uses a two-phase process: filtering and ____.

13. Which scheduling predicate ensures a pod has sufficient resources on a node?

14. What is the effect of a taint with the 'NoExecute' key?

15. Pod affinity allows you to colocate pods with ____.

16. True or False: A pod with no tolerations can be scheduled on a node with taints.

17. Which affinity type allows pods to prefer certain nodes but still schedule elsewhere if necessary?

18. The kube-scheduler component is responsible for ____.

19. What do taints prevent in Kubernetes node scheduling?

20. Which field in a pod spec defines resource requests for CPU and memory?