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GCP Associate Cloud Engineer Practice Question 32: Committed Use Discount Baseline

Google Cloud Associate Cloud Engineer · Test 4 · question 2 of 10

Billing & Cost Managementeasy

A company runs a database on Compute Engine VMs of a fixed machine family and size. The VMs have run 24 hours a day for a year, and the workload will continue for at least the next three years. The company wants the largest discount without risking interruptions.

What should you purchase?

Select one answer
Show answer and explanation

Answer:

  • C. A three year resource based committed use discount for the vCPUs and memory in use

Committed use discounts (CUDs) trade a one or three year commitment to a level of resource usage for a lower price. For steady, predictable, 24/7 workloads, a three year commitment gives the deepest discount and the VMs are unaffected, so there is no interruption risk.

Option A is cheap, but Spot VMs can be preempted at any time, which is unsuitable for a database. Option B gives smaller discounts, and they are not available for every machine series. Option D helps you monitor costs but does not lower the price of anything.

Reference: Committed use discounts

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