Quick Answer
The answer is KEY and ALL, as these are the two valid Amazon Redshift distribution styles. KEY distributes rows based on the values in a specified column, ensuring related data is co-located on the same compute node for efficient joins and aggregations, while ALL distributes a full copy of the table to every node, which is ideal for smaller, frequently joined dimension tables. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your understanding of how data placement impacts query performance in a Redshift cluster, and it often appears as a trap where candidates confuse HASH with KEY—HASH is simply a synonym for KEY, not a separate style. Similarly, AUTO is a system-managed setting, not a distribution style, and RANDOM is an outdated term replaced by EVEN. A reliable memory tip is to remember the three valid styles as “KAE” (KEY, ALL, EVEN), and that KEY is the only one requiring a specific column choice.
This DEA-C01 practice question tests your understanding of data store management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO are valid Amazon Redshift distribution styles? (Choose 2.)
HASH
Why wrong: HASH is not a distribution style; KEY is used.
ALL
ALL distributes a copy of the table to all nodes.
AUTO
Why wrong: AUTO is not a distribution style.
RANDOM
Why wrong: RANDOM is not a valid style.
KEY
KEY distribution distributes rows by a column value.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
ALL
Options A and C are correct because KEY and ALL are valid distribution styles. Option B is wrong because HASH is not a distribution style (it's a synonym for KEY). Option D is wrong because RANDOM is not a distribution style. Option E is wrong because AUTO is not a distribution style.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
HASH
Why it's wrong here
HASH is not a distribution style; KEY is used.
ALL
Why this is correct
ALL distributes a copy of the table to all nodes.
Related concept
Read the scenario before looking for a memorised answer.
AUTO
Why it's wrong here
AUTO is not a distribution style.
RANDOM
Why it's wrong here
RANDOM is not a valid style.
KEY
Why this is correct
KEY distribution distributes rows by a column value.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Data Store Management — study guide chapter
Learn the concepts, then practise the questions
Data Store Management practice questions
Targeted practice on this topic area only
All DEA-C01 questions
1,786 questions across all exam domains
AWS Certified Data Engineer Associate DEA-C01 study guide
Full concept coverage aligned to exam objectives
DEA-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise DEA-C01 questions linked to Data Ingestion and Transformation.
Practise DEA-C01 questions linked to Data Operations and Support.
Practise DEA-C01 questions linked to Data Security and Governance.
Practise DEA-C01 questions linked to Data Store Management.
Practise DEA-C01 questions linked to DEA-C01 fundamentals.
Practise DEA-C01 questions linked to DEA-C01 scenario.
Practise DEA-C01 questions linked to DEA-C01 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Data Store Management — This question tests Data Store Management — Read the scenario before looking for a memorised answer..
The correct answer is: ALL — Options A and C are correct because KEY and ALL are valid distribution styles. Option B is wrong because HASH is not a distribution style (it's a synonym for KEY). Option D is wrong because RANDOM is not a distribution style. Option E is wrong because AUTO is not a distribution style.
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 20, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.