Examination
Free attempt — email required to start. 50 questions · 60 minutes · pass mark 60% · unlimited retakes. Unproctored and open-book — you may look things up as you go. The certificate costs $69, and only after you pass.
No payment details now — the clock starts immediately and runs for 60 minutes. A started attempt runs the clock even if you never submit; retakes are unlimited and free.