Match each AWS data compression format to its typical use case.
Drag a concept onto its matching description — or click a concept then click the description.
General-purpose, good compression ratio
Fast compression/decompression for real-time
Columnar storage with built-in compression
Optimized for Hive and large-scale analytics
High compression ratio, slower speed
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Snappy: Designed for high speed and efficient compression, ideal for real-time data processing.
In AWS data engineering, compression format choice depends on trade-offs between compression ratio and speed. Snappy and LZO are optimized for speed, Gzip and Bzip2 for higher compression (with Bzip2 highest), and Zstandard offers a middle ground. Common misassociations include confusing Gzip with Bzip2 for highest compression and missing Snappy's speed focus.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Snappy: Designed for high speed and efficient compression, ideal for real-time data processing.
Why this is correct
Snappy prioritizes speed over compression ratio, making it suitable for real-time processing.
Gzip: Provides the highest compression ratio, best for archival storage.
Why it's wrong here
Incorrect — Bzip2 offers the highest compression ratio, not Gzip. Gzip provides moderate compression.
LZO: Offers fast compression and decompression, widely used in Hadoop for intermediate data.
Why this is correct
LZO is optimized for speed and often used in Hadoop for intermediate map-reduce data.
Bzip2: Commonly used for log files due to good compression ratio.
Why it's wrong here
Incorrect — Gzip is commonly used for log files. Bzip2 is slower and used for archival where higher compression is needed.
Zstandard: Balances compression ratio and speed, suitable for a variety of workloads.
Why this is correct
Zstandard provides a good trade-off between compression ratio and speed, making it versatile.
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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.