[Solved] Why can the fixed window algorithm cause bursts of allowed requests at window boundaries? — Ans: Because counts reset abruptly at window edges, allowing double requests near... | Rest API

Rest API - Rate Limiting and Throttling

Why can the fixed window algorithm cause bursts of allowed requests at window boundaries?

ABecause it merges multiple windows into one

BBecause it queues requests indefinitely

CBecause counts reset abruptly at window edges, allowing double requests near boundary

DBecause it slows down requests gradually

Step-by-Step Solution

Solution:

Step 1: Understand fixed window reset behavior
At window boundaries, counters reset suddenly, so requests near the end and start can both be allowed.
Step 2: Identify cause of bursts
This abrupt reset can cause a burst of requests allowed in a short time crossing the boundary.
Final Answer:
Because counts reset abruptly at window edges, allowing double requests near boundary -> Option C
Quick Check:
Window reset causes burst near edges [OK]

Quick Trick: Fixed window resets cause bursts at edges [OK]

Common Mistakes:

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Why can the fixed window algorithm cause bursts of allowed requests at window boundaries?