Google Professional Cloud Architect QUESTIONS
AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS
| LATEST EXAM UPDATE | EXAM PREP | STUDY
GUIDE | PRACTICE TEST
,Domain 1: Designing and Planning a Cloud Solution Architecture (~24%)
**1. A company wants to run a batch processing workload that is fault-tolerant and can be interrupted. Which
compute option is MOST cost-effective?**
- A) Compute Engine with committed use discounts
- B) Google Kubernetes Engine with node auto-scaling
- C) Spot VMs (preemptible)
- D) Sole-tenant nodes
**Answer: C**
**Rationale:** Spot VMs offer up to 60–91% discounts and are ideal for fault-tolerant, interruptible batch
workloads. Committed use discounts and sole-tenant nodes are for steady-state or compliance workloads.
**2. An application must store unstructured data with millisecond access and global availability. Which storage
service should be used?**
- A) Cloud Storage Nearline
- B) Cloud Storage Standard
- C) Cloud SQL
,- D) Bigtable
**Answer: B**
**Rationale:** Cloud Storage Standard provides low-latency, globally accessible object storage for unstructured
data. Nearline is for infrequent access; Cloud SQL is relational; Bigtable is for high-throughput analytical
workloads.
**3. A company needs a relational database with automatic failover and read replicas across regions. Which
service fits BEST?**
- A) Cloud SQL
- B) Cloud Spanner
- C) Firestore
- D) BigQuery
**Answer: B**
**Rationale:** Cloud Spanner provides globally distributed, strongly consistent relational data with automatic
failover. Cloud SQL regional failover is limited; Firestore is NoSQL; BigQuery is analytical.
**4. Which service provides a fully managed, serverless message queue with at-least-once delivery?**
, - A) Pub/Sub
- B) Cloud Tasks
- C) Eventarc
- D) Dataflow
**Answer: A**
**Rationale:** Pub/Sub is a serverless, globally scalable messaging service with at-least-once delivery. Cloud
Tasks is for task queues; Eventarc routes events; Dataflow is stream/batch processing.
**5. A company requires a private, dedicated connection between on-premises and GCP. Which should they
use?**
- A) Cloud VPN
- B) Cloud Interconnect (Dedicated)
- C) VPC peering
- D) Shared VPC
**Answer: B**
**Rationale:** Dedicated Interconnect provides a private, high-bandwidth physical connection. VPN runs over
the public internet; VPC peering and Shared VPC are GCP-internal constructs.
AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS
| LATEST EXAM UPDATE | EXAM PREP | STUDY
GUIDE | PRACTICE TEST
,Domain 1: Designing and Planning a Cloud Solution Architecture (~24%)
**1. A company wants to run a batch processing workload that is fault-tolerant and can be interrupted. Which
compute option is MOST cost-effective?**
- A) Compute Engine with committed use discounts
- B) Google Kubernetes Engine with node auto-scaling
- C) Spot VMs (preemptible)
- D) Sole-tenant nodes
**Answer: C**
**Rationale:** Spot VMs offer up to 60–91% discounts and are ideal for fault-tolerant, interruptible batch
workloads. Committed use discounts and sole-tenant nodes are for steady-state or compliance workloads.
**2. An application must store unstructured data with millisecond access and global availability. Which storage
service should be used?**
- A) Cloud Storage Nearline
- B) Cloud Storage Standard
- C) Cloud SQL
,- D) Bigtable
**Answer: B**
**Rationale:** Cloud Storage Standard provides low-latency, globally accessible object storage for unstructured
data. Nearline is for infrequent access; Cloud SQL is relational; Bigtable is for high-throughput analytical
workloads.
**3. A company needs a relational database with automatic failover and read replicas across regions. Which
service fits BEST?**
- A) Cloud SQL
- B) Cloud Spanner
- C) Firestore
- D) BigQuery
**Answer: B**
**Rationale:** Cloud Spanner provides globally distributed, strongly consistent relational data with automatic
failover. Cloud SQL regional failover is limited; Firestore is NoSQL; BigQuery is analytical.
**4. Which service provides a fully managed, serverless message queue with at-least-once delivery?**
, - A) Pub/Sub
- B) Cloud Tasks
- C) Eventarc
- D) Dataflow
**Answer: A**
**Rationale:** Pub/Sub is a serverless, globally scalable messaging service with at-least-once delivery. Cloud
Tasks is for task queues; Eventarc routes events; Dataflow is stream/batch processing.
**5. A company requires a private, dedicated connection between on-premises and GCP. Which should they
use?**
- A) Cloud VPN
- B) Cloud Interconnect (Dedicated)
- C) VPC peering
- D) Shared VPC
**Answer: B**
**Rationale:** Dedicated Interconnect provides a private, high-bandwidth physical connection. VPN runs over
the public internet; VPC peering and Shared VPC are GCP-internal constructs.
