Cloud Digital Leader How Google Cloud Resources Are Managed Practice Question
A company wants to automatically receive a discount for running Compute Engine instances for more than 25% of a month without any upfront commitment. Which discount type applies?
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
✓
Sustained use discount
Sustained use discounts are automatically applied to Compute Engine instances that run for a significant portion of the month, with no upfront commitment required.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Committed use discount
Why it's wrong here
Committed use discounts (CUDs) are not automatic; they require you to proactively sign a 1-year or 3-year commitment for a minimum dollar amount of vCPU, memory, and GPU resources per month. Because they demand an upfront contractual commitment and do not activate based on monthly usage levels, they do not satisfy a requirement for an automatic discount triggered by sustained running. They can also incur penalties if you stop using the resources before the term ends.
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CUD (Committed Use Discount)
Why it's wrong here
CUD (Committed Use Discount) is the same mechanism as a committed use discount, but the acronym draws attention to the fact that this discount requires a contractual commitment of 1 or 3 years. It is not applied automatically based on how long a VM runs; rather, you must purchase the commitment and then the discount is applied to matching usage. This makes it unsuitable for a scenario where the company wants a discount that arrives automatically simply by running a VM for a large portion of the month.
- ✓
Sustained use discount
Why this is correct
Sustained use discounts are automatically applied to eligible Compute Engine VM resources when you run a VM for more than 25% of a billing month. For every additional minute of usage beyond that threshold, the discount ramps up incrementally, reaching up to 30% off the base price for instance usage for the full month. No commitment or upfront action is needed, which exactly matches the company's requirement for an automatic discount based on monthly runtime.
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Preemptible VM discount
Why it's wrong here
Preemptible VM discounts are not automatic for normal monthly workloads; they are a pricing model for interruptible, short-lived workloads that can be terminated by Google at any time. While preemptible VMs are heavily discounted, they are not suitable for a VM that must run continuously for more than 25% of a month, because they have a maximum runtime of 24 hours and can be reclaimed. Therefore, they do not provide a steady, automatic discount for sustained usage.
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Written by Johnson Ajibi, MSc IT Security
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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.