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A user tries to list objects in an S3 bucket but receives an empty list despite knowing files exist. What is the most probable cause?

medium📝 Debug Q7 of 15
AWS - S3 Fundamentals
A user tries to list objects in an S3 bucket but receives an empty list despite knowing files exist. What is the most probable cause?
AThe files are corrupted.
BThe bucket is empty.
CThe user lacks ListBucket permission on the bucket.
DThe bucket is in a different AWS region.
Step-by-Step Solution
Solution:

  1. Step 1: Understand permission impact on listing

    Without ListBucket permission, the user cannot see objects even if they exist.

  2. Step 2: Evaluate other options

    Bucket emptiness would show no files but user knows files exist; corruption does not hide files; region difference does not cause empty list.

  3. Final Answer:

    The user lacks ListBucket permission on the bucket. -> Option C

  4. Quick Check:

    Empty list = Missing ListBucket permission [OK]
Quick Trick: Listing needs ListBucket permission [OK]
Common Mistakes:
MISTAKES
  • Assuming bucket is empty
  • Blaming file corruption
  • Thinking region mismatch hides files

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