Question 210 of 1,020
Cloud Computing ConceptsmediumMultiple ChoiceObjective-mapped

Scaling Up vs Scaling Out in Cloud VDI

This 220-1201 practice question tests your understanding of cloud computing concepts. 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 uses a cloud-based virtual desktop infrastructure (VDI) solution. Users report that logging in takes 5 minutes during peak hours. The IT team notices that the cloud provider's resource utilization is at 95%. Which action would best resolve this issue?

Quick Answer

The correct answer is to scale up the virtual machines by increasing CPU and RAM. This is because the cloud VDI environment is experiencing resource contention at 95% utilization, meaning the existing VMs are saturated and cannot handle the login load; scaling up, or vertical scaling, adds more power to each VM, directly alleviating the bottleneck. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of the difference between scaling up vs scaling out for cloud VDI resource contention—a common trap is choosing to add more VMs (scale out), which only spreads the load across more saturated nodes without fixing the root cause of insufficient per-VM resources. Remember the mnemonic: "Up for power, out for load"—when utilization is high on existing hardware, you must scale up to increase capacity per user.

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

Scale out by adding more virtual desktops

When a cloud provider's resource utilization is at 95%, the underlying physical infrastructure is saturated. Scaling up (vertical scaling) increases the VM's resources but does not alleviate the host-level bottleneck; the provider may not allow further scaling. Scaling out (horizontal scaling) adds more virtual desktop instances, distributing the load across additional VMs and reducing login times. Migrating providers is disruptive, and disabling auto-scaling worsens performance.

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.

  • Migrate to a different cloud provider

    Why it's wrong here

    Migrating to a different cloud provider is a drastic and expensive measure that does not address the immediate resource saturation issue.

  • Scale up the virtual machines by increasing CPU and RAM

    Why it's wrong here

    Scaling up by increasing CPU and RAM is ineffective because the provider's physical resources are already saturated; further scaling may be impossible or not improve performance.

  • Scale out by adding more virtual desktops

    Why this is correct

    Scaling out by adding more virtual desktops distributes the load across additional VMs, reducing resource contention and login times during peak hours.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Disable automatic scaling

    Why it's wrong here

    Disabling automatic scaling would prevent the system from adapting to demand, likely worsening performance during peak usage.

Common exam traps

Common exam trap: answer the scenario, not the keyword

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

How to think about this question

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.

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.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • 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 220-1201 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.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

What to study next

Got this wrong? Here's your next step.

Identify which 220-1201 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.

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FAQ

Questions learners often ask

What does this 220-1201 question test?

Cloud Computing Concepts — This question tests Cloud Computing Concepts — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Scale out by adding more virtual desktops — When a cloud provider's resource utilization is at 95%, the underlying physical infrastructure is saturated. Scaling up (vertical scaling) increases the VM's resources but does not alleviate the host-level bottleneck; the provider may not allow further scaling. Scaling out (horizontal scaling) adds more virtual desktop instances, distributing the load across additional VMs and reducing login times. Migrating providers is disruptive, and disabling auto-scaling worsens performance.

What should I do if I get this 220-1201 question wrong?

Identify which 220-1201 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.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 18, 2026

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This 220-1201 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 220-1201 exam.