Question 619 of 997
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CV0-004 Deployment Practice Question

This CV0-004 practice question tests your understanding of deployment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

A company is planning to migrate a 200 TB on-premises file server to AWS S3. The network link is 1 Gbps and cannot be saturated due to other traffic. The migration must be completed within two weeks. Which TWO services or features should the cloud engineer consider to accelerate the transfer? (Choose two.)

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

AWS DataSync

AWS DataSync is correct because it is designed to efficiently migrate large datasets to AWS by using parallel multi-threaded transfers and incremental syncs, which can optimize the use of the available 1 Gbps link without saturating it. It can handle the 200 TB file server migration by automating the transfer and reducing the time required compared to manual copying, though the 1 Gbps link alone may still be insufficient for the two-week window, making it a partial solution.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • AWS Direct Connect

    Why it's wrong here

    Direct Connect establishes a dedicated network connection but does not accelerate transfer by itself; it's a connectivity option.

  • AWS DMS

    Why it's wrong here

    DMS is for database migration, not file storage.

  • AWS DataSync

    Why this is correct

    DataSync can accelerate transfers over the network and is designed for large datasets.

    Related concept

    Read the scenario before looking for a memorised answer.

  • AWS Snowball

    Why this is correct

    Snowball is an offline device capable of transferring large data quickly.

    Related concept

    Read the scenario before looking for a memorised answer.

  • AWS Storage Gateway

    Why it's wrong here

    Storage Gateway provides hybrid cloud storage but is not primarily for bulk migration.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often assume AWS DataSync alone can handle any large transfer over a network link, but they overlook the bandwidth calculation—200 TB at 1 Gbps takes over 18 days, so a physical transport like Snowball is necessary to meet the two-week deadline.

Detailed technical explanation

How to think about this question

AWS DataSync uses a purpose-built network protocol that can saturate a 1 Gbps link with multiple concurrent streams and automatic retries, but for 200 TB, even at full 1 Gbps (approximately 10.8 TB per day), the transfer would take over 18 days, exceeding the two-week deadline. AWS Snowball, as a physical appliance, bypasses network constraints entirely by shipping data via courier, enabling transfer of up to 80 TB per device (for Snowball Edge) in days, making it essential for meeting the deadline when combined with DataSync for initial seeding or final sync.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

Quick reference

AWS S3 Storage Class Comparison

Storage ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

What to study next

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FAQ

Questions learners often ask

What does this CV0-004 question test?

Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: AWS DataSync — AWS DataSync is correct because it is designed to efficiently migrate large datasets to AWS by using parallel multi-threaded transfers and incremental syncs, which can optimize the use of the available 1 Gbps link without saturating it. It can handle the 200 TB file server migration by automating the transfer and reducing the time required compared to manual copying, though the 1 Gbps link alone may still be insufficient for the two-week window, making it a partial solution.

What should I do if I get this CV0-004 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.