Given the following RabbitMQ cluster setup code snippet, what will be the output if node1 fails?

medium📝 Predict Output Q13 of 15

RabbitMQ - Clustering

cluster_nodes = ["rabbit@node1", "rabbit@node2", "rabbit@node3"]
message_published = True
if 'rabbit@node1' not in cluster_nodes:
    message_published = False
print(message_published)

ANone

BFalse

CError

DTrue

Step-by-Step Solution

Solution:

Step 1: Analyze cluster_nodes list
The list still contains 'rabbit@node1' even if node1 fails; the list is static here.
Step 2: Check condition and output
The condition checks if 'rabbit@node1' is not in the list, which is false, so message_published stays True and prints True.
Final Answer:
True -> Option D
Quick Check:
Node1 in list = True output [OK]

Quick Trick: Static list means node failure not reflected here [OK]

Common Mistakes:

MISTAKES

Assuming node failure removes it from list automatically
Confusing condition logic
Expecting runtime error

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More RabbitMQ Quizzes

Given the following RabbitMQ cluster setup code snippet, what will be the output if node1 fails?

Step 1: Analyze cluster_nodes list

Step 2: Check condition and output

Final Answer:

Quick Check:

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