Thanks for all your replies, everyone. It makes sense now. I thought that I was probably needed to download a different app with a different name. @Soondae, I already signed up for that site. I thought there might be an option to practice and watch training videos. It seems not. From what I can see, I have to just do the test, but I was hoping to do a little prep in advance. I'm told there are 500 questions in the database, and you get 50 random questions to answer. I hope it's not too difficult. I mean, it's been a zillion years since I had to sit a test for anything.
@alesaldana Thanks for that link. I'll read through the most recent updates later ;)
I'll post here on my progress, as it may prove useful for others.
Stubby