Why serverless functions matter in GCP - Challenge Your Understanding

Challenge - 5 Problems

🧠 Conceptual

intermediate

Why do serverless functions reduce operational overhead?

Imagine you run a small bakery and want to automate ordering ingredients only when needed. How do serverless functions help reduce the work of managing servers in this scenario?

A They require you to manually configure and update servers before running your code.

B They automatically handle scaling and server maintenance, so you focus only on your code logic.

C They force you to buy and maintain physical servers for your bakery automation.

D They only work if you run your code on your local computer without internet.

💡 Hint

Think about who manages the servers and scaling in serverless.

Serverless functions let you write code without worrying about the servers behind it. The cloud provider manages scaling and maintenance, reducing your operational tasks.

❓ service_behavior

intermediate

What happens when a serverless function receives many requests at once?

Consider a serverless function deployed on Google Cloud Functions. What is the expected behavior when it suddenly receives a large number of requests?

A The function queues all requests and processes them one by one without scaling.

B The function crashes because it cannot handle multiple requests simultaneously.

C The platform automatically creates more instances of the function to handle the load.

D You must manually add more servers to handle the increased requests.

💡 Hint

Think about how serverless platforms handle sudden traffic spikes.

Serverless platforms like Google Cloud Functions automatically scale out by creating more instances to handle many requests at once, ensuring smooth performance.

❓ Architecture

advanced

Which architecture best fits a serverless function for image processing triggered by file uploads?

You want to process images automatically when users upload them to cloud storage. Which architecture uses serverless functions effectively?

A Trigger a serverless function on file upload event to process the image and store results.

B Run a continuously running server that polls the storage for new files every minute.

C Manually download files and run image processing on your local machine.

D Use a serverless function that runs on a fixed schedule regardless of uploads.

💡 Hint

Consider event-driven triggers and automatic execution.

Serverless functions can be triggered by events like file uploads, allowing immediate processing without running servers continuously.

❓ security

advanced

What is a key security benefit of using serverless functions?

When using serverless functions, which security advantage is most accurate?

A The cloud provider manages the underlying infrastructure security, reducing your attack surface.

B You must configure firewall rules on each server manually.

C Serverless functions expose your code directly to the internet without protection.

D You need to install antivirus software on the serverless function instances.

💡 Hint

Think about who is responsible for infrastructure security in serverless.

With serverless, the cloud provider secures the servers and infrastructure, so you focus on securing your code and data.

✅ Best Practice

expert

Which practice ensures cost efficiency when using serverless functions?

You want to minimize costs while using serverless functions on Google Cloud. Which practice helps achieve this?

A Use serverless functions only for long-running background jobs.

B Keep serverless functions running continuously to avoid cold starts.

C Deploy large monolithic functions that handle all tasks at once.

D Write functions that execute quickly and only when needed to avoid unnecessary billing.

💡 Hint

Consider how billing works for serverless functions.

Serverless functions are billed based on execution time and resources used. Writing efficient, short-running functions triggered only when needed reduces costs.