You try to create a subscription with the command gcloud pubsub subscriptions create sub1 but get an error. What is the most likely cause?

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GCP - Cloud Pub/Sub

You try to create a subscription with the command gcloud pubsub subscriptions create sub1 but get an error. What is the most likely cause?

AMissing the --topic flag specifying the topic name

BSubscription name is invalid

CTopic does not exist

DYou need to delete the topic first

Step-by-Step Solution

Solution:

Step 1: Check required parameters for subscription creation
The command requires the --topic flag to specify which topic the subscription belongs to.
Step 2: Identify missing flag
The error occurs because the --topic flag is missing in the command.
Final Answer:
Missing the --topic flag specifying the topic name -> Option A
Quick Check:
Subscription create needs --topic flag [OK]

Quick Trick: Always include --topic when creating subscriptions [OK]

Common Mistakes:

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