QABattle

Selenium / Quiz

Grid 4 & Parallel Warfare

Grid 4 hands out browser sessions; it does not parallelize your tests, your runner does. Confusing the two is how suites deadlock at 3 AM.

Difficulty
Hard
Format
Quiz
Points
200
Estimate
11 min

// MISSION BRIEF

Your Mission

The org wants the 90-minute regression suite under 15 minutes. The plan: Selenium Grid 4 plus parallel execution. Between you and that number stand session queues, thread-safety landmines, and a static WebDriver field someone committed in 2022.

Seven questions on Grid architecture and parallel-run mechanics. Speed bonus active.

// FIRST CONTACT

Battle teaser

Selenium Grid 4 ships in which deployment modes?

  1. AHub-and-node only, same as Grid 3
  2. BCloud-hosted only
  3. CStandalone (one process), hub-and-node, and fully distributed (router, distributor, session map, session queue, nodes as separate services)
  4. DOne mode: a Kubernetes operator
Answers, scoring, hints, and the full battle stay sealed.

// SKILL TAGS

seleniumgridparallel-executiontestnginfrastructure