[Solved] Identify the error in this per-user rate limit check pseudocode:requests = {"alice": 3} limit = 5 user = "bob" if requests[user] > limit: block() else: allow() | Rest API

Rest API - Rate Limiting and Throttling

Identify the error in this per-user rate limit check pseudocode:

requests = {"alice": 3}
limit = 5
user = "bob"
if requests[user] > limit:
    block()
else:
    allow()

ASyntax error in if statement

BKeyError because 'bob' is not in requests dictionary

CLimit comparison uses wrong operator

DNo error, code works fine

Step-by-Step Solution

Solution:

Step 1: Check dictionary keys
requests dictionary has only "alice", but code accesses requests["bob"].
Step 2: Identify error type
Accessing a missing key causes a KeyError at runtime.
Final Answer:
KeyError because 'bob' is not in requests dictionary -> Option B
Quick Check:
Missing key access = KeyError [OK]

Quick Trick: Check if user key exists before access [OK]

Common Mistakes:

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