The correct answer is rapid elasticity, which is the cloud characteristic being utilized when a web application automatically scales out and in based on demand. Rapid elasticity is the technical concept that allows cloud resources—like the virtual machines in this scenario—to be provisioned and released automatically, scaling up to handle traffic spikes and scaling down during low usage, all without manual intervention. On the CompTIA A+ Core 1 220-1201 exam, this question tests your understanding of the five essential cloud characteristics, and a common trap is confusing rapid elasticity with scalability; remember that scalability is the general ability to grow, while rapid elasticity specifically emphasizes the automated, on-demand, and often bidirectional nature of that scaling. A helpful memory tip is to think of the word “elastic” like a rubber band—it stretches out when pulled (high demand) and snaps back when released (low demand), happening quickly and automatically.
220-1201 Cloud Computing Concepts Practice Question
This 220-1201 practice question tests your understanding of cloud computing concepts. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 cloud architect is designing a solution where a company's web application automatically scales out to handle increased traffic and scales in during low demand. The application runs on multiple virtual machines. Which cloud characteristic is being utilized?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Rapid elasticity
Rapid elasticity is the ability to automatically scale resources up or down based on demand. This is a key characteristic of cloud computing. Other options like measured service or resource pooling are related but do not directly describe auto-scaling.
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.
✗
Resource pooling
Why it's wrong here
Resource pooling refers to multi-tenant sharing of physical resources, not automatic scaling.
✗
Measured service
Why it's wrong here
Measured service involves metering usage for billing, not scaling.
✓
Rapid elasticity
Why this is correct
Rapid elasticity allows resources to be provisioned and released automatically to match demand, as described in the scenario.
Related concept
Read the scenario before looking for a memorised answer.
✗
On-demand self-service
Why it's wrong here
On-demand self-service lets users provision resources without human interaction, but it does not imply automatic scaling.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
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.
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: Rapid elasticity — Rapid elasticity is the ability to automatically scale resources up or down based on demand. This is a key characteristic of cloud computing. Other options like measured service or resource pooling are related but do not directly describe auto-scaling.
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.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A technician is setting up a cloud-based application that must handle unpredictable spikes in user traffic. The application should automatically add more virtual servers during peak times and remove them when traffic decreases. Which cloud concept is this?
medium
A.Scalability
✓ B.Elasticity
C.High availability
D.Load balancing
Why B: Elasticity is the ability to automatically scale resources up and down in response to demand. This is a key benefit of cloud computing, allowing cost efficiency while handling spikes. Scalability is a broader term that includes manual scaling, but elasticity specifically implies automatic, dynamic adjustment.
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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.
Question Discussion
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