[Solved] After applying this Deployment YAML, how many Pods will be running?apiVersion: apps/v1 kind: Deployment metadata: name: webapp spec: replicas: 5 selector: matchLabels: tier: frontend template:... | Kubernetes

Kubernetes - ReplicaSets and Deployments

After applying this Deployment YAML, how many Pods will be running?

apiVersion: apps/v1
kind: Deployment
metadata:
  name: webapp
spec:
  replicas: 5
  selector:
    matchLabels:
      tier: frontend
  template:
    metadata:
      labels:
        tier: frontend
    spec:
      containers:
      - name: web
        image: nginx

A5 Pods

B1 Pod

C0 Pods

D10 Pods

Step-by-Step Solution

Solution:

Step 1: Check replicas field
The spec.replicas is set to 5, indicating desired number of Pods.
Step 2: Verify selector and labels match
The selector matches pods with label tier: frontend, which matches the template labels.
Step 3: Confirm Pods creation
Since selector and template labels match, Kubernetes will create 5 Pods.
Final Answer:
5 Pods -> Option A
Quick Check:
Replicas field defines Pod count [OK]

Quick Trick: Replicas field sets Pod count [OK]

Common Mistakes:

Ignoring label selector and template label mismatch
Assuming default replicas if not specified
Confusing number of containers with number of Pods

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More Kubernetes Quizzes

After applying this Deployment YAML, how many Pods will be running?

Step 1: Check replicas field

Step 2: Verify selector and labels match

Step 3: Confirm Pods creation

Final Answer:

Quick Check:

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