AWS Certified Cloud Practitioner (CLF-C02) practice questions

A startup is unsure how many customers it will attract and does not want to buy a large fleet of servers before launch. Which benefit of the AWS Cloud most directly addresses this concern?

• AIt lets the firm trade a large upfront capital expense for a variable expense tied to usagecheck_circle Correct
• BIt guarantees that every workload will run faster than on the firm's own hardware
• CIt removes the need to apply any security controls because AWS handles all of them
• DIt provides a single fixed monthly price that never changes regardless of how much is used

Why A is correct: Paying only for the capacity actually used removes the need to buy servers in advance, which is exactly what a startup with uncertain demand wants.

Why B is wrong: AWS does not promise universally faster performance, and raw speed is not the concern here; the startup is worried about committing to hardware it may not need.

Why C is wrong: AWS uses a shared responsibility model and does not handle all security, so this misstates how the cloud works and does not address the hardware concern.

Why D is wrong: Cloud pricing usually scales with consumption rather than a flat fee, so the idea of an unchanging fixed bill is the opposite of the variable expense benefit.

An AWS instructor explains that because AWS aggregates the usage of hundreds of thousands of customers, it can buy infrastructure at lower cost and pass the savings on through lower prices. Which cloud benefit is being described?

• AGaining agility by provisioning new resources within minutes when they are needed
• BBenefiting from economies of scale that lower prices as aggregated usage growscheck_circle Correct
• CTrading a variable expense for a fixed capital expense paid once at the start
• DImproving resilience by spreading each workload across many separate data centres

Why A is wrong: Agility describes fast provisioning rather than purchasing power, so it does not explain why aggregated demand lowers the price.

Why B is correct: Massive aggregated demand lets AWS purchase at lower unit cost and reduce prices, which is the textbook definition of economies of scale.

Why C is wrong: This reverses the actual benefit, since the cloud moves spend toward variable expense, and it is unrelated to bulk purchasing power.

Why D is wrong: Spreading workloads concerns availability rather than cost, so it does not describe the pricing effect of aggregated customer demand.

A development team wants to spin up a test environment of several servers in minutes, run experiments, and then shut it all down the same afternoon. Which benefit of the AWS Cloud best supports this way of working?

• AEconomies of scale, because aggregated demand reduces the unit price of the servers
• BCapital expense, because the team can purchase the servers it needs in advance
• CAgility, because resources can be provisioned on demand and released within minutescheck_circle Correct
• DShared responsibility, because AWS secures the hardware that the servers run on

Why A is wrong: Lower unit pricing is a real benefit, but it speaks to cost rather than how quickly the team can stand up and tear down an environment.

Why B is wrong: Buying servers in advance is the on-premises model the cloud avoids, so it works against the team's wish to provision and release quickly.

Why C is correct: Agility is the ability to provision and dispose of resources quickly, which is exactly what a same-day experiment needs.

Why D is wrong: The shared responsibility model describes who secures what, not the speed of provisioning, so it does not address the team's goal.