Which advantage of cloud computing allows users to scale resources up and down based on the amount of load that an application supports?

Question

Options

• AGo global in minutes
• BStop guessing capacity
• CBenefit from massive economies of scale
• DTrade fixed expense for variable expense

• A
  7% (2)
• B
  85% (23)
• C
  4% (1)
• D
  4% (1)

Explanation

Stop Guessing Capacity (B) is correct because this advantage directly refers to the ability to scale resources dynamically up or down in response to actual application load, eliminating the need to over-provision or under-provision infrastructure in advance. With cloud computing, you no longer need to predict traffic spikes or lulls - you simply adjust resources as demand changes.

Why the others are wrong:

• A (Go global in minutes) refers to deploying applications across multiple geographic regions quickly, not scaling based on load.
• C (Benefit from massive economies of scale) refers to cost savings achieved because cloud providers aggregate usage from many customers, lowering per-unit costs - not dynamic scaling.
• D (Trade fixed expense for variable expense) refers to shifting from upfront capital expenditures (like buying servers) to paying only for what you use - a pricing model concept, not a scaling concept.

Memory Tip: Think of "Stop Guessing Capacity" as the advantage that removes the crystal ball - instead of guessing how much server capacity you'll need months in advance, the cloud lets you react to real-time demand automatically.

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