Kubernetes - Labels and Selectors
Which YAML snippet correctly configures a Service selector to target pods labeled
app: web and tier: frontend?Which YAML snippet correctly configures a Service selector to target pods labeled app: web and tier: frontend?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand selector syntax
Selectors use key: value pairs under 'selector' in YAML.Step 2: Identify correct YAML format
selector: app: web tier: frontend uses proper YAML mapping syntax for labels.Final Answer:
selector: app: web tier: frontend -> Option BQuick Check:
YAML selectors require key: value pairs, no equal signs or lists [OK]
Quick Trick: Use key: value pairs under selector, no equals or lists [OK]
Common Mistakes:
- Using '=' instead of ':' in YAML
- Listing selectors as arrays
- Using invalid label keys without colon
Master "Labels and Selectors" in Kubernetes
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