Mock interviews
The same questions you can already practise, under the two conditions practice removes: a clock, and nothing to look up until it is over. The report afterwards says what to revise, and tells you when the problem was pace rather than knowledge.
CS foundations interview
30 questions · 45 minutes
Mixed across databases, operating systems, networks and object orientation, in the shape an interviewer actually asks.
Pattern recognition
20 questions · 20 minutes
Shown a problem you have not seen, decide what shape of solution it wants. No code, just the approach and why.