A common mistake in interview prep is treating every study method as roughly interchangeable — as long as you're "practising," it counts. It doesn't quite work that way. Recognising a concept and being able to produce it under pressure are two different skills, and confusing them is how people walk out of an interview thinking "I knew that, I just froze."

What flashcards actually test

A flashcard tests whether you can retrieve a specific fact or concept, fast, with minimal context. "What's the time complexity of a hash map lookup?" "What does the STAR method stand for?" "Name three signs of a good candidate for X role." These are the building blocks — the vocabulary and facts an answer is made of. AI Flashcards is purpose-built for this: generate a deck on exactly the topic you're shaky on, and drill it until recall is instant instead of effortful.

What a mock interview actually tests

A mock interview tests something flashcards structurally cannot: can you take those building blocks and construct a coherent, well-paced spoken answer, live, while someone (or something) is actively listening and may follow up with a question you didn't prepare for. This is where people who "know the material" on paper still struggle — the gap isn't knowledge, it's the real-time performance of using that knowledge under mild pressure.

The trap of only doing one

Only doing flashcards leaves you with strong recall and no practice actually speaking answers out loud — you'll know the STAR method perfectly and still ramble when asked to use it live. Only doing mock interviews without ever isolating the specific concepts you're weak on means you keep hitting the same knowledge gaps in every session without a focused way to close them — you notice the gap during the interview, but nothing in the format helps you drill it afterward.

A prep split that actually works

  1. Identify the gaps first. After a mock interview or a real interview, note the specific concepts or question types you struggled with — not "I need to practise more," but the actual named gap.
  2. Turn each gap into a flashcard deck. Describe exactly what you struggled with when creating the deck — the more specific the brief, the more targeted the cards.
  3. Drill until recall is fast, not just correct. Rate honestly — a slow correct answer is still a gap, not a win.
  4. Go back to a full mock interview. Test whether the improved recall actually shows up in a live, spoken answer. This is the step people skip, and it's the one that matters most.

Neither tool is optional if you want to walk in prepared on both fronts — what you know, and how well you can say it.