Container Orchestration

Which of the following is a key benefit of container orchestration compared to running containers manually?

Which THREE are valid container runtimes that implement the Kubernetes CRI? (Choose three.)

Which TWO of the following are benefits of using containers over virtual machines? (Choose 2)

A Kubernetes cluster is experiencing network latency. The team suspects that the number of services and endpoints is causing iptables performance degradation. Which CNI plugin or network policy approach is most likely to improve performance?

You need to run a batch job that processes a queue and then terminates. Which Kubernetes resource should you use?

You are designing a microservices application. Which of the following is a key principle of microservices architecture?

A team runs a stateless web application and wants to update its container image with zero downtime while gradually shifting traffic to the new version. They also need the ability to pause the rollout, inspect the new Pods, and then resume. Which Kubernetes workload and strategy best supports this workflow?

A developer wants to run a container image locally for testing before deploying to a Kubernetes cluster. Which tool is most appropriate for this task?

Which TWO of the following are benefits of container orchestration?

A developer wants to run a containerized application locally for development. Which tool is most appropriate?

An application requires stable network identities and persistent storage. Which workload type should be used?

Which of the following is a benefit of using an orchestrator like Kubernetes?

A Kubernetes cluster runs a critical application that must be highly available. The application consists of three pods managed by a Deployment. To ensure the application remains accessible during a node failure, which configuration should be applied?

A pod is in the 'CrashLoopBackOff' state. You run 'kubectl logs mypod' and see an error related to missing environment variables. The pod is part of a Deployment. What is the best way to fix this without recreating the entire Deployment?

Which two of the following are container runtimes that implement the Container Runtime Interface (CRI)? (Choose two.)

Which of the following is a benefit of using container orchestration platforms like Kubernetes?

Which TWO of the following are benefits of using a container orchestration platform like Kubernetes? (Select 2)

An administrator runs 'kubectl get pods' and sees that a pod named 'app-pod' is in 'CrashLoopBackOff'. They run 'kubectl logs app-pod' and see a segmentation fault error. What is the most likely cause?

An administrator manages a cluster where a Namespace named 'analytics' contains a ResourceQuota that limits pods to 10. A developer applies a manifest containing a ReplicaSet with replicas: 12 in that Namespace. The ReplicaSet controller creates the first 10 Pods successfully, but the remaining 2 Pods are rejected. Which statement best describes what the developer will observe and why?

You have a Deployment with three replicas. You want to update the container image but ensure that only one pod is updated at a time, and the update proceeds only if the new pod becomes healthy. Which update strategy should you configure?

You need to deploy a batch job that processes a queue and runs to completion. The job should run exactly once and create exactly one pod per work item, but some items may fail. Which Kubernetes resource is best suited?

A company wants to adopt immutable infrastructure for its containerized applications. Which practice BEST exemplifies immutability?

You have a Deployment running 3 replicas. You need to update the container image without downtime. Which command updates the image while performing a rolling update?

Which of the following is a benefit of container orchestration?

Which component in Kubernetes is responsible for managing the lifecycle of pods and ensuring the desired number of replicas are running?

A pod uses a ServiceAccount that has a RoleBinding to a Role with 'get', 'list', 'watch' on 'pods'. The pod tries to list pods in the same namespace. Will the request succeed?

A workload running in a namespace called 'payments' is defined by a Pod spec with restartPolicy: Always. The cluster's kubelet on node 'worker-3' is healthy, the API server is reachable, and the scheduler has placed the Pod on worker-3. After the Pod's only container exits with code 0, a platform engineer observes that the Pod restarts repeatedly even though the application completed its work successfully. Which Kubernetes behavior explains this observation?

Which TWO statements about container images are correct? (Choose two.)

A pod spec includes a liveness probe that runs 'cat /tmp/healthy'. The probe is configured with initialDelaySeconds: 10, periodSeconds: 5. At what point does the kubelet first execute the probe?

A DevOps team notices that a new deployment of a web application is not receiving traffic even though the pods are running. The deployment has a selector matching the pod labels, and a Service of type ClusterIP exists. What is the most likely cause?

A Kubernetes cluster has a single control plane node and two worker nodes. The control plane node fails. What is the immediate impact on the workloads running on the worker nodes?

Refer to the exhibit. How many containers are defined in this Pod?

A pod is stuck in 'Pending' state. You run 'kubectl describe pod mypod' and see the event '0/4 nodes are available: 4 Insufficient cpu'. What is the most likely cause?

When using a Service of type ClusterIP, how do pods reach the service?

Which THREE of the following are true about container lifecycle? (Choose 3)

You are asked to deploy a Kubernetes service that exposes a set of pods internally within the cluster only. The service should not be accessible from outside the cluster. Which Service type should you choose?

What is the primary purpose of the Open Container Initiative (OCI)?

You need to run a stateful application that requires stable network identities and persistent storage per pod. Which Kubernetes resource is BEST suited?

Which two of the following are characteristics of container images built using OCI standards? (Choose two.)

You are deploying a stateful application that requires each pod to have a stable, unique network identity and its own persistent storage. Which Kubernetes resource should you use?

A Kubernetes cluster has two nodes: control-plane and worker. The worker node runs several pods. The control-plane node becomes unreachable. What is the immediate impact on the pods running on the worker node?

Which of the following is a key benefit of container orchestration?

What is the primary purpose of a container orchestration platform like Kubernetes?

Which THREE of the following are key benefits of container orchestration? (Choose 3)

What is the primary benefit of using containers over virtual machines?

What is the primary difference between a container and a virtual machine (VM)?

Which THREE are benefits of using a container orchestration platform? (Select 3)

Which TWO are benefits of using a container orchestration platform like Kubernetes? (Select TWO.)

A cluster runs the Horizontal Pod Autoscaler (HPA) v2 for a Deployment named queue-worker. The HPA is configured with minReplicas: 2, maxReplicas: 10, and a target average CPU utilization of 60%. Metrics Server is installed and reports CPU for the Pods. During a burst, CPU utilization rises to 95% and stays there, but the Deployment remains at 2 replicas. Which condition most likely explains why the HPA is not scaling out?

Which three of the following are benefits of container orchestration? (Choose three.)

Which THREE of the following are benefits of using container orchestration? (Choose three.)

A developer needs to run a one-off batch job that processes a dataset and then terminates. The job should run to completion and not restart after successful completion. Which Kubernetes resource is most appropriate for this task?

Based on the exhibit, why is the pod web-pod not running?

A container image built using a Dockerfile with multiple layers is stored in a registry. When a node pulls this image, which statement about layers is true?

What is the purpose of a readiness probe in a Kubernetes pod?

Which Kubernetes resource should be used to run a one-time task that performs a computation and then exits?

A developer is troubleshooting a Pod that is stuck in Pending state. The node has sufficient CPU and memory, and the scheduler logs show no errors. Which two factors could prevent the Pod from being scheduled? (Choose two.)

A developer wants to deploy a stateless web application that should scale to 5 replicas. Each replica must be identical and should be automatically replaced if it fails. Which Kubernetes resource should be used?

Which Kubernetes resource is used to run a batch job that runs to completion?

An administrator must run a privileged DaemonSet on every node, including the control-plane node, to collect host logs. The control-plane node has a taint node-role.kubernetes.io/control-plane:NoSchedule. Which change allows the DaemonSet Pods to be scheduled on the control-plane node while keeping the taint intact?

A DevOps engineer wants to deploy a stateful application that requires stable network identities and persistent storage. Which Kubernetes resource is most appropriate?

Which THREE of the following are true about the Open Container Initiative (OCI)? (Select 3)

Which TWO of the following are benefits of using a container orchestration platform like Kubernetes? (Choose two.)

Which TWO of the following are required fields when defining a container in a Kubernetes Pod spec? (Choose 2)

Which TWO are characteristics of the microservices architecture that are supported by container orchestration?

Which of the following is a key principle of microservices architecture?

A pod is stuck in the 'Pending' state. You run 'kubectl describe pod mypod' and see the event: '0/3 nodes are available: 1 node had taint that the pod didn't tolerate, 2 Insufficient cpu.' What is the most likely cause?

Which TWO statements about containers are true compared to virtual machines? (Select TWO.)

Which command would you run to get a list of all pods in all namespaces?

Which THREE of the following are key characteristics of microservices architecture?

You need to deploy an application that requires exactly one pod per cluster node for logging purposes. Which Kubernetes workload resource should you use?

You need to ensure that a set of pods in a Deployment can be reached by other pods using a stable IP address and DNS name. Which Kubernetes object should you use?

Drag and drop the steps for a rolling update of a Kubernetes Deployment into the correct order.

What is the Open Container Initiative (OCI) responsible for?

A developer wants to run a one-off database migration task in Kubernetes that must complete successfully and then stop. The task should not restart after successful completion, and the developer wants to inspect logs after it finishes. Which resource should be created?

Which TWO of the following are valid ways to expose a set of pods as a network service in Kubernetes? (Select two.)

Which TWO statements correctly describe how Kubernetes handles self-healing? (Select two.)

Which component of Kubernetes is responsible for maintaining the desired state of the cluster?

Which of the following best describes a key advantage of containers over virtual machines?

A DevOps engineer wants to update a Deployment's container image from 'v1' to 'v2' with zero downtime. Which kubectl command should they use?

Which of the following is a container runtime that implements the Container Runtime Interface (CRI)?

A Kubernetes cluster runs a DaemonSet named 'node-agent' that must run on every node, including the control-plane node. The control-plane node has a taint 'node-role.kubernetes.io/control-plane:NoSchedule'. The DaemonSet currently does not schedule pods on the control-plane node. Which change to the DaemonSet spec will ensure its pods run on the control-plane node?

A microservices application has multiple services that need to discover each other by name. Which Kubernetes object provides built-in service discovery via DNS?

Which THREE of the following are valid container runtimes that can be used with Kubernetes via the Container Runtime Interface (CRI)? (Select three.)

Which component is responsible for running containers in a Kubernetes node and implements the Container Runtime Interface (CRI)?

You run 'kubectl get pods' and see that a pod named 'web-frontend' is in 'Pending' state for more than 5 minutes. What is the most likely cause?

A team deploys an application as a StatefulSet with three replicas. They need each Pod to have a stable network identity and its own persistent storage that survives Pod rescheduling. Which two features of StatefulSet satisfy these requirements?

A developer wants to run a single instance of a stateless web application that should be automatically restarted if it fails, but does not require scaling or updates. Which Kubernetes resource is most appropriate?

An application Pod needs to read a database password at runtime. The security team requires that the secret material never be stored in the Pod's container image or in a ConfigMap, and that updates to the secret be reflected in the running container without recreating the Pod. Which approach satisfies these requirements?

A developer needs to provide a pod with a persistent volume that must be mounted by multiple pods simultaneously for read-write access. The underlying storage system supports concurrent writes from multiple nodes. Which volume type should be used?

A cluster administrator is configuring a NetworkPolicy for a set of pods labeled 'role=db' in the 'backend' namespace. The policy should allow ingress only from pods labeled 'role=api' in the 'frontend' namespace, and only on TCP port 6379. Which NetworkPolicy specification correctly enforces this?

You want to ensure that a Pod runs on every Node in the cluster. Which resource should you use?

Which command would you use to get the logs of a pod named 'backend' in the 'production' namespace?

A container image is built from a Dockerfile with multiple layers. Which statement about container image layers is TRUE?

You need to run a batch job that processes a queue of 1000 items. The job should run to completion and then terminate. Which Kubernetes resource is BEST suited for this workload?

A platform team runs a 20-node Kubernetes cluster. They want a single Pod to run on every node so that a node-exporter agent can collect host metrics. They also want the Pod to be automatically created when a new node joins the cluster. Which workload resource should they use?

A pod is stuck in the Pending state. Running 'kubectl describe pod <pod-name>' shows the event: '0/3 nodes are available: 1 node had taint {node.kubernetes.io/disk-pressure: }, 2 nodes had taint {node.kubernetes.io/memory-pressure: }'. What is the most likely cause?

You have a multi-container pod with a main application container and a sidecar container that handles log shipping. The sidecar container should start before the main container and stop after the main container finishes. Which pod configuration should you use?

You run the command 'kubectl get pods -n default' and see no pods listed. However, you are sure there should be pods. What is the most likely cause?

Which statement accurately describes a key difference between containers and virtual machines?

Which TWO of the following are true about container networking basics? (Choose 2)

You have a microservices application with a frontend service that needs to communicate with a backend service running in a different namespace ('backend-ns'). The default namespace for the frontend is 'frontend-ns'. What DNS name should the frontend use to reach the backend service named 'backend-svc'?

Which of the following is a characteristic of immutable infrastructure?

What is the purpose of a readiness probe in a Kubernetes pod?

What is the purpose of the Container Runtime Interface (CRI) in Kubernetes?

Which TWO of the following are characteristics of microservices architecture? (Choose 2)

A pod has resource requests of 512Mi memory and 500m CPU, and limits of 1Gi memory and 1 CPU. The node has 4Gi memory and 2 CPU cores. If the pod tries to use 700m CPU, what will happen?

A developer wants to run a one-time task that creates a database schema and then exits. Which Kubernetes workload type is most appropriate?

In a container image built from a Dockerfile, what is the purpose of the CMD instruction?

Which TWO of the following are valid reasons to use a DaemonSet instead of a Deployment? (Select 2)

A cluster administrator notices that a Pod scheduled on a node is stuck in the Pending state. The Pod requests 8 CPU cores, but the node has only 4 allocatable CPU cores. The scheduler logs show a FailedScheduling event with the message 'Insufficient cpu'. Which action will allow the Pod to be scheduled without reducing its CPU request?

Which Open Container Initiative (OCI) specification defines the format of container images?

What is the Container Runtime Interface (CRI)?

You have a Kubernetes cluster with a Deployment that uses a PersistentVolumeClaim (PVC) to store application data. The PVC is bound to a PersistentVolume (PV) with a Retain reclaim policy. You delete the Deployment and the PVC. What happens to the underlying storage?

A cluster administrator deploys a web application as a Deployment named 'web' with 4 replicas. Users report that requests to the application sometimes reach a Pod that is still starting up and not ready to serve traffic. Which Kubernetes object should the administrator configure to ensure only ready Pods receive traffic?

An administrator needs to expose a set of pods running a web application on a static port on each node's IP address. Which Service type should they use?

A company is deploying a microservices application on Kubernetes. They want to ensure that configuration data, such as database URLs and feature flags, can be updated without rebuilding container images. Which Kubernetes resource should they use?

A Kubernetes Deployment manages a set of pods. What is the primary purpose of a Deployment?

Which THREE of the following are core principles of immutable infrastructure? (Choose 3)

A cluster administrator examines a node and notices that the kubelet is running, but the node's status shows 'NotReady'. The administrator runs 'systemctl status containerd' on the node and finds the service is inactive. Which component's failure most directly explains the node's 'NotReady' condition?

A developer wants to expose a set of pods running a web application on a stable IP address. Which Kubernetes resource should they create?

Which of the following is a key benefit of using containers over virtual machines?

Match each Kubernetes command (kubectl) to its primary function.

Which TWO of the following are true about service discovery in Kubernetes? (Choose 2)

Which of the following correctly describes the concept of 'immutable infrastructure' in the context of container orchestration?

A Pod is stuck in 'Pending' state. Which command is most helpful to diagnose the issue?

A developer wants to store non-sensitive configuration data, such as a database hostname and port, that multiple pods in different namespaces will consume as environment variables. The data must be reusable and not hardcoded in pod specs. Which Kubernetes resource is most appropriate?

You deploy a web application as a Deployment with 3 replicas. Each pod runs an Nginx container that listens on port 80. You need to make the application accessible from outside the cluster on a stable IP address that does not change even if nodes are replaced. Which Service type should you use?

A cluster administrator needs to run a Pod that requires access to a raw block device on a specific node. The Pod must be scheduled only on nodes labeled disktype=ssd, and it must tolerate a taint hardware=gpu:NoSchedule that exists on those nodes. Which combination of Pod spec fields is required?

Which of the following is a valid use case for a DaemonSet?

What is the OCI (Open Container Initiative) responsible for?

An application requires that a specific set of pods be placed on nodes labeled with 'gpu=true'. Which Kubernetes field should be used in the pod spec to enforce this?

An application requires that a pod must not be scheduled on the same node as another pod from the same Deployment. Which configuration should be used?

A Kubernetes administrator needs to ensure that a set of pods can only communicate with each other and with a specific external API, while blocking all other traffic. Which Kubernetes feature should be used to enforce this?

A pod is running but its container exits with code 137. The pod logs show 'Killed'. What is the most likely cause?

A cluster administrator needs to run a one-time database migration job that must complete successfully before a new application version is deployed. The job should retry up to 4 times if it fails and should be automatically cleaned up 1 hour after completion. Which Kubernetes resource should be used?

A Kubernetes cluster has a pod that is stuck in the 'Pending' state. The operations team runs 'kubectl describe pod' and sees the event: '0/3 nodes are available: 3 Insufficient cpu.' What is the most likely cause of this issue?

A developer wants to ensure that a pod runs only on nodes with SSDs. Which mechanism should be used?

You have a microservices application deployed as a set of Pods in a Kubernetes cluster. You need to ensure that Pods can discover each other using stable DNS names. Which Kubernetes resource should you create?

A pod named 'web-app' is not able to resolve the hostname 'db-service' from another namespace 'data'. The 'db-service' Service exists in the 'data' namespace. What is the most likely cause?

Which TWO of the following are characteristics of a microservices architecture? (Select 2)

A developer wants to deploy a stateful application that requires stable network identities and persistent storage. Which Kubernetes resource is best suited for this workload?

A team runs a stateful application in a Kubernetes cluster. They need each Pod to have a stable network identity and its own persistent storage that survives Pod rescheduling. Which controller should they use?

What is the primary benefit of containers over virtual machines?

Which TWO of the following are valid container runtimes that implement the CRI? (Choose two.)

Which component is responsible for managing the lifecycle of containers on a Kubernetes node?

Which THREE of the following are characteristics of a microservices architecture? (Select 3)

A platform team must ensure that a critical StatefulSet named ledger in the finance namespace always has at least two Pods available during voluntary disruptions such as node drains, and that Pods are spread across different nodes. Which two resources or settings should they configure? (Choose two.)

A team wants to deploy a batch job that runs once to process a large dataset. The job should run to completion and then terminate. Which Kubernetes resource should be used?

What is the concept of 'immutable infrastructure' as applied to Kubernetes?

Which THREE of the following are true about the Open Container Initiative (OCI)? (Choose 3)

A company wants to run a batch job that processes data and then terminates. Which Kubernetes resource should they use?

What is the purpose of the 'kubectl scale' command?

A Kubernetes administrator is troubleshooting a Pod that is stuck in the Pending state. The Pod has a resource request of cpu: 2 and memory: 4Gi. Which two commands are most appropriate to identify why the Pod cannot be scheduled? (Choose two.)

What is the primary purpose of the Container Runtime Interface (CRI) in Kubernetes?

Which component in Kubernetes is responsible for maintaining the desired state of the cluster?

A cluster administrator is configuring a Pod with a container that requires 2 CPU cores and 4Gi of memory. The administrator sets resource requests to 2 CPU and 4Gi memory, and limits to 4 CPU and 8Gi memory. The Pod is scheduled to a node with 4 CPU and 8Gi memory available. What happens when the container attempts to use 3 CPU and 6Gi memory?

Which of the following best describes immutable infrastructure?

Which THREE are benefits of using container orchestration platforms like Kubernetes?

Which TWO statements accurately describe the concept of immutable infrastructure in the context of container orchestration? (Select two.)

What is a primary benefit of using containers over virtual machines?

What is a key advantage of containers compared to virtual machines?

Which command would you use to view the logs of a specific container in a pod?

A developer wants to deploy a stateful application that requires stable network identities and persistent storage per pod instance. Which Kubernetes resource is most appropriate?

A developer creates a Pod with a single container that writes logs to stdout. The Pod is running, but the developer wants to view the last 50 lines of logs from that container and have the command keep streaming new output. Which kubectl command accomplishes this?

Which command is used to create a Deployment that runs an nginx container with 3 replicas?

What is a key benefit of container orchestration platforms like Kubernetes?

What is a key benefit of using containers over virtual machines for application deployment?

Which component is responsible for running containers on a Kubernetes node?

You are writing a Deployment YAML (apps/v1) for a stateless web application. The application should have 3 replicas and use rolling updates with maxSurge=1 and maxUnavailable=0. Which field should you set under spec.strategy?

An administrator needs to store a database password for a Pod to consume as an environment variable. The password must be stored securely and not exposed in the Pod specification. Which Kubernetes resource should the administrator create?

You need to run a batch job that processes data every hour and exits upon completion. Which Kubernetes resource should you use?

An administrator needs to ensure that Pods from two different Deployments cannot communicate with each other. Which Kubernetes resource should be used?

An administrator wants to allow a Pod to consume a ConfigMap named app-config as environment variables, but only the keys DB_HOST and DB_PORT. The ConfigMap contains additional keys. Which Pod spec snippet correctly injects only those two keys as environment variables?

A platform engineer is troubleshooting a Pod that stays in the Pending phase. Which two conditions can legitimately cause a Pod to remain Pending? (Choose two.)

Which command correctly creates a Deployment named 'web-app' with the image 'nginx:1.21' and 3 replicas?

Which of the following describes the Open Container Initiative (OCI) image specification?

A developer creates a Deployment with 3 replicas. After updating the pod template, they run 'kubectl rollout status deployment/my-deployment' and see that the rollout is stuck. Which command should they use to investigate the rollout history?

Which TWO statements about Docker Compose and Kubernetes are correct?

A team deploys a microservice that requires sticky sessions. The service runs on Kubernetes with multiple replicas. Which Kubernetes resource should be used to ensure requests from a client are consistently routed to the same pod?

A developer wants to run a single instance of a stateless web application in a Kubernetes cluster. The application does not need to maintain state or have a stable network identity. Which workload resource is the most appropriate to use?

You have a Kubernetes cluster with multiple nodes. You need to ensure that a pod runs on a node that has an SSD. How should you achieve this?

A cluster administrator needs to schedule a pod that requires 4 CPU cores and 16Gi of memory on a node with sufficient resources. The pod also must tolerate a taint on a dedicated node. Which combination of pod spec fields must be set to ensure the pod lands on the correct node?

A cluster administrator needs to run a node-level log-shipping agent on every node, including nodes added later, and wants the agent to tolerate the control-plane taint. Which workload API object is the most appropriate choice?

Which TWO of the following correctly describe the difference between Docker Compose and Kubernetes? (Choose 2)

Which THREE of the following are true about the Container Runtime Interface (CRI)? (Choose 3)

An administrator wants to ensure that a pod only runs on nodes that have a specific GPU. Which mechanism should be used to achieve this?

Which Kubernetes resource is best suited for running a batch processing job that must complete successfully exactly once?

Which TWO of the following are true about the Open Container Initiative (OCI)?

Which of the following is an example of immutable infrastructure?

A Kubernetes cluster runs a critical application in a pod. The operations team wants to receive an alert if the application's main process stops responding to HTTP requests on port 8080 at path /healthz. They need Kubernetes to automatically restart the pod if the health check fails. Which type of probe should they configure?

A pod is in the 'Pending' state. Which of the following is a likely cause?

A team runs a stateless API as a Deployment with six replicas across three nodes. They need a stable virtual IP and DNS name that load-balances TCP traffic to the ready replicas from other Pods in the same cluster. Which resource should they create?

Which TWO statements accurately describe Kubernetes scheduling?

Which of the following is a key difference between containers and virtual machines?

A Kubernetes cluster has a Deployment running three replicas of an application. You need to update the container image to a new version with zero downtime. Which approach is most appropriate?

What is the purpose of the Container Runtime Interface (CRI)?

A DevOps engineer is designing a Kubernetes architecture for a stateful application that requires stable network identities and persistent storage across pod rescheduling. The engineer needs to choose the appropriate Kubernetes resource types to meet these requirements. Which two resources should the engineer use? (Choose two.)

A developer creates a Pod with a single container that writes logs to stdout. The Pod is scheduled and running, but the developer needs to view the logs from the past hour. Which kubectl command should the developer use?

Which Kubernetes resource can be used to define network policies that control traffic between pods?

Your application consists of a frontend and a backend. The frontend needs to communicate with the backend using a stable DNS name. The backend is deployed as a Deployment with 3 replicas. Which Kubernetes resource should you create to provide a stable DNS name for the backend?

What is the difference between a liveness probe and a readiness probe?

Which TWO statements about containers compared to virtual machines are correct? (Select 2)

You have a microservices application where Service A needs to discover the IP of Service B. Both services run in the same Kubernetes cluster. Which approach is the most Kubernetes-native way for Service A to reach Service B?

You are designing a microservices application that requires each service to be independently deployable and scalable. The services communicate over HTTP and need service discovery. Which orchestration feature BEST addresses the need for service discovery?

A user creates a Service of type ClusterIP with a selector matching pods labeled 'app: myapp'. However, a pod named 'myapp-pod' with label 'app: myapp' is not receiving traffic. What is a possible reason?

You create a Service of type ClusterIP with the name 'my-service' in the 'default' namespace. What DNS name resolves to the service's cluster IP from a pod in the same namespace?

A Kubernetes administrator needs to restrict inbound traffic to a set of pods. Only pods with the label 'app: frontend' in the same namespace should be allowed to reach the pods on TCP port 8080. Which resource should be used?

Which THREE of the following are correct statements about Kubernetes Deployments?

A pod is in CrashLoopBackOff. You check the logs and see 'Error: container process not found'. What is the most likely cause?