Google PCA Manage implementation of cloud architecture Practice Question
Which THREE factors should be considered when choosing a Google Cloud region for deploying a low-latency application serving global users? (Choose three.)
⚠ Common exam trap
This exam often tests the misconception that high availability (zones) is equivalent to low latency for global users, but zones only provide redundancy within a region, not reduced network distance for geographically distributed users.
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
✓
Proximity to your user base to minimize network latency.
Deploying in a Google Cloud region geographically close to your user base minimizes network latency, which is critical for low-latency applications. Google Cloud's global network uses edge points of presence (PoPs) and premium tier routing to reduce round-trip time (RTT), but the physical distance between the region and users still directly impacts latency due to the speed of light and fiber optic propagation delays.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Proximity to your user base to minimize network latency.
Why this is correct
Closer regions reduce round-trip time.
- ✓
Availability of the specific Google Cloud services required by the application.
Why this is correct
Not all services are in all regions.
- ✗
Pricing differences between regions due to variations in compute and storage costs.
Why it's wrong here
Cost is a factor but not among the top three when low latency is critical.
- ✓
Compliance with data residency requirements (e.g., GDPR, CCPA).
Why this is correct
Data must stay within specific geographic boundaries.
- ✗
Number of zones in the region to ensure high availability.
Why it's wrong here
Most regions have three zones; difference is minimal.
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