I've finally took the CKA Exam and passed it successfully from first try.
From my personal view - exam was really easy one. Most tasks relatively simple ones, only a few of them was a bit more complex. Maybe, it's because I use it daily for multiple years already, or maybe because the killer.sh test was way more advanced and let me prepare better.
The online check-in process was way more complicated & stressful.
The next challenge - CKS.