Google PCA Manage implementation of cloud architecture Practice Question
A company is running a multi-region application on Google Kubernetes Engine with workloads in us-central1 and europe-west1. They want to route traffic to the closest region based on user location. Which three components should they configure? (Choose three.)
⚠ Common exam trap
Many exam-takers confuse Cloud Armor's security filtering capabilities with traffic routing, or mistakenly think a regional internal load balancer can handle multi-region traffic, when in fact only a global external HTTP(S) load balancer combined with geo-routing DNS and NEGs can achieve proximity-based routing across regions.
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
✓
Cloud DNS with geo-routing policy
Cloud DNS geo-routing policy directs DNS queries to the closest healthy backend based on the user's geographic location, enabling traffic to be routed to the nearest GKE region (us-central1 or europe-west1). This is essential for minimizing latency and optimizing user experience in a multi-region setup.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud Armor security policy
Why it's wrong here
Used for security, not for geographic routing.
- ✓
Cloud DNS with geo-routing policy
Why this is correct
Routes DNS queries to the closest region's load balancer IP.
- ✓
Network endpoint groups (NEGs) pointing to GKE pods
Why this is correct
Enables load balancer to send traffic directly to pods.
- ✗
Regional internal load balancer
Why it's wrong here
Used for internal traffic within a VPC, not for external users.
- ✓
Global external HTTP(S) load balancer
Why this is correct
Routes user traffic to the closest healthy backend region.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Multi-region
Multi-region refers to a deployment strategy where IT resources, applications, or data are hosted in multiple geographic locations to improve availability, disaster recovery, and performance.
Key term
Anthos
Anthos is a Google Cloud platform that lets you run applications consistently across different computing environments, like on-premises data centers and multiple public clouds.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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