Why serverless patterns matter in GCP - Challenge Your Understanding

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Serverless Benefits

Which of the following is the primary benefit of using serverless patterns in cloud infrastructure?

A You manage the underlying servers directly for better control.

B You must provision fixed capacity ahead of time.

C It automatically scales with demand without manual intervention.

D It requires installing and maintaining operating systems.

💡 Hint

Think about how serverless handles changes in workload.

Serverless automatically adjusts resources based on demand, so you don't manage servers or capacity.

❓ Architecture

intermediate

Serverless Event-Driven Architecture

In a serverless event-driven architecture on GCP, which service is best suited to trigger functions based on file uploads to cloud storage?

A Cloud Pub/Sub

B Cloud Storage Triggers

C Cloud SQL

D Compute Engine

💡 Hint

Consider which service directly reacts to storage events.

Cloud Storage Triggers invoke serverless functions automatically when files are uploaded or changed.

❓ security

advanced

Securing Serverless Functions

Which practice best secures serverless functions to minimize risk of unauthorized access?

A Store secrets in a managed secret manager and grant least privilege access.

B Use environment variables with no encryption.

C Embed all secrets directly in the function code.

D Allow public internet access to all functions for easy testing.

💡 Hint

Think about secure secret storage and access control.

Using a secret manager with least privilege access protects sensitive data and limits exposure.

❓ service_behavior

advanced

Serverless Cold Start Impact

What is the typical impact of a cold start on serverless function performance?

A Functions may have a noticeable delay on first invocation after inactivity.

B Functions start instantly with no delay.

C Functions crash on cold start due to missing dependencies.

D Functions consume more memory but run faster on cold start.

💡 Hint

Consider what happens when a function is invoked after being idle.

Cold starts cause a delay because the platform initializes the function environment before running code.

✅ Best Practice

expert

Optimizing Cost with Serverless Patterns

Which approach best optimizes cost when designing serverless applications on GCP?

A Keep functions running continuously to avoid cold starts.

B Deploy all logic in a single large function to reduce invocation counts.

C Provision maximum memory for all functions regardless of workload.

D Use serverless functions only for short, infrequent tasks and offload heavy processing elsewhere.

💡 Hint

Think about matching workload patterns to serverless strengths.

Serverless is cost-effective for short, event-driven tasks; heavy or long-running tasks may be better elsewhere.