Test Data & Scenarios — quiz

A K6 load test needs 500 VUs each logging in with different credentials stored in a users.csv file. Which K6 feature loads and shares this data most efficiently?

• Read users.csv using Node.js `fs.readFileSync()` inside the default VU function so each VU reads its own slice
• Use K6's `SharedArray` to parse the CSV once in the init context and share the resulting array across all VUs without duplicating it in memory
• Pass the CSV file path as a K6 environment variable and parse it per-VU in setup()
• K6 does not support CSV files — convert to JSON first and import it as a module