Frequently Asked Questions

EngMock is an AI technical interview practice platform covering System Design, Coding/DSA, and OOD. Each live track uses voice plus a format-appropriate whiteboard or coding workspace.

Yes. Live DSA scenarios support Python, JavaScript, Java, and C++, with plain or syntax-assistance modes. You can choose a runnable sandbox or use handwritten/no-run validation with examples and a verbal dry run.

Yes. Live OOD scenarios use voice plus a multi-file TypeScript workspace. The interviewer probes requirements, responsibilities, APIs, extensibility, validation, and design trade-offs, with optional runnable validation.

Unlike a generic chatbot, EngMock runs a timed, track-specific interview, follows your active whiteboard or code workspace, asks adaptive follow-ups, and produces evidence-based feedback using a rubric designed for that interview format.

Just a computer with a microphone and a modern web browser (Chrome recommended). No downloads or installations required. The interactive whiteboard runs directly in your browser.

EngMock currently offers 104 live scenarios: 53 System Design, 25 DSA, 26 OOD interviews. They are separate from the Question Bank, which publishes paraphrased candidate-reported patterns without solutions.

A typical session lasts 45 ~ 60 minutes, mirroring a real system design interview. You can end the interview early at any time. After the session ends, the AI generates a comprehensive evaluation report.

Absolutely! We encourage it. Each session is saved with a full transcript, whiteboard snapshots, and your score. You can compare your progress over multiple attempts on the Sessions page.

Our AI has real-time visual understanding of the shared whiteboard. As you draw components (load balancers, databases, message queues), it recognizes them and evaluates your architecture choices — including data flow, consistency trade-offs, and scalability — at the component level.

Each track has a different rubric. System Design covers requirements, estimation, APIs/data, architecture, deep dives, reliability, trade-offs, and communication. DSA emphasizes problem solving, correctness, complexity, implementation, testing, and communication. OOD focuses on modeling, responsibilities, APIs, extensibility, implementation, and validation.

EngMock supports Junior, Mid, Senior, and Staff standards. Reports classify the demonstrated level and include specific strengths, evidence-backed improvement areas, and actionable next steps.

Live AI mock interviews use one-time credit packs across System Design, Coding/DSA, and OOD. Each pack also bundles timed access to the candidate-reported Question Bank — Starter 30 days, Value 60 days, and Ultimate 90 days.

No. Question Bank access is included with every paid credit pack — Starter 30 days, Value 60 days, and Ultimate 90 days. There is no separate subscription to manage.

New users can try the current live mock interview experience before purchasing additional interview credits.

Each credit pack has the validity period shown on the Pricing page. The current packs list 90-day or 180-day validity depending on the pack.

EngMock works on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend Google Chrome for the best audio and whiteboard experience.

Yes. All interview sessions are encrypted in transit and at rest. We do not share your data with third parties. Your session recordings and transcripts are private and accessible only to you. See our Privacy Policy for full details.

EngMock is optimized for desktop and laptop use due to the interactive whiteboard component. We recommend using a device with a larger screen for the best experience.