Google PCA Practice Question: Analysing and Optimising Technical and Business Processes
A company wants to reduce costs for their steady-state Compute Engine workloads. They have 10 n1-standard-4 VMs running 24/7. Which TWO actions will reduce costs? (Choose 2)
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
✓
Purchase committed use discounts (1-year) for the VMs
Committed use discounts provide significant savings (up to 70%) for steady-state workloads. Right-sizing recommendations help identify if VMs are over-provisioned, allowing downsizing. Preemptible VMs are for interruptible workloads; sustained use is automatic but less savings.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Purchase committed use discounts (1-year) for the VMs
Why this is correct
Committed use discounts offer lower prices in exchange for a 1- or 3-year commitment.
- ✗
Use preemptible VMs
Why it's wrong here
Preemptible VMs can be terminated at any time, not suitable for steady-state workloads.
- ✗
Migrate to sole-tenant nodes
Why it's wrong here
Sole-tenant nodes increase cost for isolation.
- ✗
Enable sustained use discounts
Why it's wrong here
Sustained use discounts are automatic; no action needed.
- ✓
Apply right-sizing recommendations from Active Assist
Why this is correct
Right-sizing reduces costs by matching machine type to actual usage.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.