Assuming two pods pod-x and pod-y are in the same namespace, and pod-y runs a service on port 5000, what will be the result of running this command inside pod-x?

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Kubernetes - Networking

Assuming two pods pod-x and pod-y are in the same namespace, and pod-y runs a service on port 5000, what will be the result of running this command inside pod-x?

curl http://pod-y:5000

AThe command will connect but only if pod-y's IP is used instead of its name

BThe command will fail because pod names cannot be used for communication

CThe command will successfully connect to pod-y's service on port 5000

DThe command will fail because pods in the same namespace cannot communicate

Step-by-Step Solution

Solution:

Step 1: Check namespace and DNS resolution
Pods in the same namespace can resolve each other by pod name via cluster DNS.
Step 2: Verify port and service availability
Since pod-y runs a service on port 5000, curl to pod-y:5000 should succeed.
Final Answer:
The command will successfully connect to pod-y's service on port 5000 -> Option C
Quick Check:
Pod names resolve within the same namespace [OK]

Quick Trick: Pods in same namespace resolve each other by name [OK]

Common Mistakes:

Thinking pod names cannot be used for communication
Assuming IPs must be used instead of pod names
Believing pods in the same namespace cannot communicate

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More Kubernetes Quizzes

Assuming two pods pod-x and pod-y are in the same namespace, and pod-y runs a service on port 5000, what will be the result of running this command inside pod-x?

Step 1: Check namespace and DNS resolution

Step 2: Verify port and service availability

Final Answer:

Quick Check:

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