Frequently asked questions

A curated interview-prep library for AI infrastructure engineer, Applied AI, and adjacent roles. Each topic is a journey ordered from fundamentals to the staff-level questions that decide offers, with answers written to the standard of someone who has sat on both sides of these loops.

Premium is a one-time payment — US$25 by credit card or PayPal, or ₹2,000 by UPI, card, or netbanking — that unlocks every answer across all topics for six months, including any new questions added during that window. It does not auto-renew.

No. Premium unlocks digital content immediately, so all sales are final. That is exactly why we keep a generous free tier: work through the free answers in any topic first and judge the depth for yourself before paying. See the Terms for the full policy. If something has gone wrong, though, write to us before you assume the answer is no. We read everything that comes in.

Yes, just ask. If your loop lands a few days after your six months run out, write to us and we will extend your access so you are covered through the interview. No charge and no forms to fill in. We would rather you walked in prepared than watched the clock.

A real person, quickly. Use the contact form on the site, or write to support at aiinfrainterviews.com. Billing trouble, an answer that looks wrong, access that did not unlock, a question you think we are missing: all of it is worth writing in about, and none of it is too small. We reply to most messages within two business days.

You can read the question list across every topic, and a set of full answers in each topic, without paying. Sign in free with Google to unlock more per topic and to track progress and bookmarks.

Your account returns to the free tier. You keep your progress, bookmarks, and free answers, and you can buy another six months whenever you want — never automatically.

Yes. Payments run through Razorpay and PayPal, and you can pay by credit card without a PayPal account. We never see or store your card or UPI details; access is granted the moment the provider confirms your payment.

Yes — and we reward it. If you submit a question while signed in and we publish it, it carries your @handle and you get +1 day of full access added to your account automatically. Submit one on the Submit a Question page.

No. Every answer is held to a written editorial standard and a content linter that rejects generic filler, and each carries the insider texture interviewers actually screen for. The free answers are deliberately the strongest content on the site so you can verify this before paying.

No. Company names and logos are shown only to describe the kinds of loops our questions are modeled on. We are not affiliated with, endorsed by, or partnered with any of them, and all trademarks belong to their owners.