easyMultiple Choice
Cloud Digital Leader Practice Question: Migrating its on-premises data center to Google…
A company is migrating its on-premises data center to Google Cloud. They want to avoid large upfront hardware costs and only pay for the resources they consume. Which cloud benefit does this represent?
⚠ Common exam trap
It's easy for candidates to confuse 'scalability' with 'pay-as-you-go' because both involve resource adjustment, but scalability is about dynamic capacity changes, not the financial model of avoiding upfront costs.
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
✓
Pay-as-you-go pricing
The scenario describes a shift from capital expenditure (CapEx) to operational expenditure (OpEx), which is the core of pay-as-you-go pricing. This model allows the company to avoid large upfront hardware costs and only pay for the compute, storage, and network resources actually consumed, aligning with Google Cloud's consumption-based billing model.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Security
Why it's wrong here
Security is a fundamental operational requirement, but it is not a pricing or payment model. While Google Cloud provides robust security features like encryption, IAM, and VPC firewalls, these are delivered as part of the service and do not define how costs are incurred. The question asks about the financial approach to replacing on-premises infrastructure, and security does not directly address the elimination of upfront hardware investments or usage-based billing.
- ✓
Pay-as-you-go pricing
Why this is correct
Pay-as-you-go pricing directly addresses the financial model of cloud migration by replacing large capital expenditures (CapEx) on hardware with operational expenditures (OpEx) based on actual consumption. In on-premises data centers, organizations must purchase and maintain physical servers regardless of utilization, leading to sunk costs. With GCP, you are billed per second for compute resources like Compute Engine, enabling cost alignment with demand and eliminating the need for upfront procurement, which is the core benefit being asked about.
- ✗
High availability
Why it's wrong here
High availability is an architectural property that describes a system's ability to remain operational during failures, typically implemented through redundancy across zones or regions. It is a critical service-level advantage of cloud platforms, but it does not change the fundamental cost structure or payment model. The question focuses on how migrating avoids large upfront hardware costs, which is a financial transformation, not an operational resilience characteristic.
- ✗
Scalability
Why it's wrong here
Scalability refers to the dynamic adjustment of resources to handle variable workloads, such as using managed instance groups to autoscale based on CPU utilization. While this is a valuable operational capability of the cloud, it is about resource management efficiency, not the pricing model itself. Even on-premises systems can be over-provisioned for scale, but the payment model—pay-as-you-go versus upfront capital investment—remains the distinct financial reason for migration, making scalability an incorrect answer.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.