Recall & Review
beginner
What is rate limiting in web applications?
Rate limiting is a technique to control how many requests a user or client can make to a server in a given time. It helps prevent overload and abuse.
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beginner
Which Rails middleware is commonly used for rate limiting?
Rack::Attack is a popular middleware in Rails used to implement rate limiting by blocking or throttling requests based on rules.
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intermediate
How does Rack::Attack identify clients to limit their requests?
Rack::Attack usually identifies clients by their IP address or user authentication token to apply rate limits per client.
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beginner
What happens when a client exceeds the rate limit in Rails using Rack::Attack?
The client receives a 429 Too Many Requests HTTP response, indicating they must wait before sending more requests.
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beginner
Why is rate limiting important for API endpoints?
Rate limiting protects APIs from being overwhelmed by too many requests, ensures fair usage, and improves security by blocking abusive clients.
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Which gem is commonly used in Rails for rate limiting?
✗ Incorrect
Rack::Attack is the middleware designed for throttling and blocking requests in Rails.
What HTTP status code indicates a client has exceeded the rate limit?
✗ Incorrect
429 Too Many Requests tells the client to slow down because they hit the rate limit.
Rate limiting helps to:
✗ Incorrect
Rate limiting controls request flow to prevent server overload and abuse.
Rack::Attack identifies clients usually by:
✗ Incorrect
IP address is the common way to identify clients for rate limiting.
Which of these is NOT a benefit of rate limiting?
✗ Incorrect
Rate limiting reduces server load, it does not increase CPU usage.
Explain how rate limiting works in a Rails application using Rack::Attack.
Think about how Rack::Attack controls request flow and responds to clients.
You got /4 concepts.
Why is implementing rate limiting important for APIs and web servers?
Consider what happens if too many requests come at once.
You got /4 concepts.