This GCDL practice question tests your understanding of why cloud technology is transforming business. 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.
A company with fluctuating demand wants to pay only for the resources it consumes, with no long-term commitments. Which Google Cloud feature allows them to automatically adjust capacity based on real-time demand?
Cloud Armor
Why wrong: Cloud Armor provides DDoS protection and web application firewall.
Committed use discounts
Why wrong: Committed use discounts require a 1- or 3-year commitment.
Autoscaling
Autoscaling dynamically adjusts resources to match current demand.
Preemptible VMs
Why wrong: Preemptible VMs are low-cost but can be terminated, not designed for on-demand capacity.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Autoscaling
Autoscaling is the correct answer because it automatically adjusts the number of compute resources (e.g., VM instances) up or down based on real-time demand metrics such as CPU utilization, request count, or custom metrics. This allows the company to pay only for the resources it consumes without any long-term commitments, as instances are added or removed dynamically to match current load.
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.
Cloud Armor
Why it's wrong here
Cloud Armor provides DDoS protection and web application firewall.
Committed use discounts
Why it's wrong here
Committed use discounts require a 1- or 3-year commitment.
Autoscaling
Why this is correct
Autoscaling dynamically adjusts resources to match current demand.
Related concept
Read the scenario before looking for a memorised answer.
Preemptible VMs
Why it's wrong here
Preemptible VMs are low-cost but can be terminated, not designed for on-demand capacity.
Common exam traps
Google Cloud often tests the distinction between cost-saving mechanisms (like Preemptible VMs or Committed Use Discounts) and dynamic scaling features, so candidates mistakenly choose a cost-optimization option instead of the correct autoscaling feature that directly addresses the requirement of adjusting capacity based on real-time demand.
Detailed technical explanation
Under the hood, Google Cloud Autoscaling uses the Instance Group Manager (IGM) to monitor a defined autoscaling policy, which can be based on metrics like CPU utilization (default 60%), HTTP load balancing serving capacity, or Stackdriver custom metrics. The autoscaler calculates the desired number of instances using a formula that considers the target metric value and the current load, then adds or removes instances with a cooldown period (default 60 seconds) to avoid thrashing. In a real-world scenario, a retail website experiencing a flash sale might see autoscaling spin up dozens of instances within minutes to handle the spike, then scale down after the event, ensuring cost efficiency without manual intervention.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
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FAQ
Why cloud technology is transforming business — This question tests Why cloud technology is transforming business — Read the scenario before looking for a memorised answer..
The correct answer is: Autoscaling — Autoscaling is the correct answer because it automatically adjusts the number of compute resources (e.g., VM instances) up or down based on real-time demand metrics such as CPU utilization, request count, or custom metrics. This allows the company to pay only for the resources it consumes without any long-term commitments, as instances are added or removed dynamically to match current load.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This GCDL practice question is part of Courseiva's free Google Cloud 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 GCDL exam.
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