How to do a mock coding interview?

Conducting a mock coding interview is a great way to prepare for the real thing. It helps you practice coding under interview-like conditions, get comfortable with expressing your thought process, and improve your problem-solving skills. Here's how to effectively do a mock coding interview:

1. Choose Your Interview Format:

• Solo or With a Partner: Decide if you'll practice alone or with someone. Practicing with a partner can be more beneficial as it simulates the real interview environment.
• Online Platforms: Use platforms like Pramp, DesignGuurs.io, or LeetCode, which offer mock interviews with peers or sometimes with experienced interviewers.

2. Set Up the Environment:

• Quiet Space: Choose a quiet and comfortable space with minimal distractions.
• Tools: Have a computer ready if you're coding online or a whiteboard if you're practicing for a whiteboard interview. Ensure you have a good internet connection for online mock interviews.

3. Select a Problem:

• Problem Type: Choose a problem that is typical for coding interviews. It could be related to data structures, algorithms, system design, etc.
• Difficulty Level: The problem should be challenging but manageable within the timeframe of a mock interview.

4. Time Your Interview:

• Set a Timer: Most coding interviews last between 45-60 minutes. Time your mock interview to get used to coding within this timeframe.

5. Conduct the Interview:

• Introduction: Start with a brief introduction, just like in a real interview.
• Problem Solving:
  • Read the problem statement carefully.
  • Ask clarifying questions if the problem is vague or open-ended.
  • Think aloud as you devise a solution. Explain your thought process, why you chose a particular approach, and any alternatives you considered.
  • Write the code, explaining as you go. Keep your code clean and organized.
  • After coding, walk through your solution with a test case to demonstrate how it works. Check for and fix any bugs.
• Review:
  • If you're practicing with a partner, ask for feedback on your problem-solving approach, coding style, and communication skills.
  • If practicing alone, review your performance. Identify areas for improvement.

6. Post-Interview Review:

• Self-Evaluation: Reflect on what went well and what could have been better. Identify areas where you need more practice.
• Feedback: If you practiced with a partner or used an online platform, consider the feedback you received.

7. Regular Practice:

• To get the most out of mock interviews, practice regularly. This will help you become more comfortable with the interview format and improve over time.

8. Focus on Learning:

• Use mock interviews as a learning tool. Don't be discouraged by mistakes; instead, use them as opportunities to improve.

Mock coding interviews are an essential part of your preparation for actual tech interviews. They help build confidence, highlight areas for improvement, and make you comfortable with the interview process.

Ref: Design Gurus Mock Interview