Emvigo Technologies Interview Questions, Process, and Tips

JWT syntax for signing and verification

• JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties.

• To sign a JWT, you need to create a header, payload, and a secret key. Then use a signing algorithm like HMAC SHA256 to create the signature.

• To verify a JWT, you need to decode the JWT and verify the signature using the same secret key and algorithm used for signing.

Best practices for technology consultants

• Stay updated on latest technologies and trends

• Communicate effectively with clients and team members

• Document all processes and decisions for future reference

• Provide regular updates and progress reports to stakeholders

• Continuously improve skills through training and certifications

Implementing security measures to protect data and systems from unauthorized access.

• Implement strong password policies

• Use encryption for sensitive data

• Regularly update software and systems to patch vulnerabilities

• Implement multi-factor authentication

• Conduct regular security audits and penetration testing

Complex queries can be handled by breaking them down into smaller parts, using indexes, optimizing the query, and utilizing advanced query techniques.

• Break down the query into smaller parts to make it more manageable

• Use indexes on the columns involved in the query to improve performance

• Optimize the query by analyzing execution plans and making necessary adjustments

• Utilize advanced query techniques such as subqueries, j