Read more about the A2 Key exam:

Read the examiner’s comments:

Part 1 (Interview)
What do candidates have to do? Respond to questions, giving factual or personal information.

How long do candidates have to speak? 3–4 minutes.

Part 2 (Discussion)
What do candidates have to do? Candidates discuss likes and dislikes, and give reasons.

How long do candidates have to speak? 5–6 minutes.

Cambridge English speaking tests take place with one or two other candidates, and two examiners. This makes your test more realistic and more reliable.

source