DEA-C01 Data Ingestion and Transformation Practice Question
Network Topology
The command returns an empty result, but you know there are objects in the 'logs/' prefix larger than 1000 bytes. What is the MOST likely reason?
⚠ Common exam trap
The DEA-C01 exam often tests the subtle distinction between string and numeric comparisons in JMESPath queries, where candidates mistakenly assume that quoted numbers are automatically coerced to integers.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The comparison 'Size > '1000'' uses a string instead of a number, so it never matches.
The `Size > '1000'` comparison treats `'1000'` as a string literal rather than a numeric value. In AWS CLI commands like `list-objects-v2` combined with JMESPath queries, numeric comparisons require unquoted numbers; a quoted string will never match a numeric field, resulting in an empty result even when objects larger than 1000 bytes exist.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The prefix 'logs/' is incorrect; the objects are in a different prefix.
Why it's wrong here
If the prefix were wrong, the command would return no keys at all, but the query is filtering.
- ✓
The comparison 'Size > '1000'' uses a string instead of a number, so it never matches.
Why this is correct
Size is a numeric field; comparing to a string causes the filter to be false.
- ✗
The command does not paginate, so it only checks the first 1000 objects.
Why it's wrong here
Although pagination is an issue for large buckets, the command would still return some results if they existed in the first page.
- ✗
The output format is set to text, but the query requires JSON.
Why it's wrong here
The --query works with any output format; it processes the JSON response internally.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DEA-C01 exam.