Keltron Interview Questions, Process, and Tips

DC converter topology, MOSFET selection, half bridge topology, PWM, serial communication, UART, SPI, I2C, RS232, RS485

• DC converter topology converts DC voltage to a different level using various configurations like buck, boost, or buck-boost.

• MOSFET selection is based on parameters like voltage rating, current rating, RDS(on), and switching frequency.

• Half bridge topology uses two switches to control the flow of current ...read more

My salary expectation is based on my experience, skills, and the market rate for the position.

• Consider my years of experience in the industry

• Take into account my relevant skills and certifications

• Research the current market rate for similar positions in this location

• Open to negotiation based on benefits package offered

Yes, I am comfortable relocating to Udaipur location.

• I have no issues with relocating to Udaipur for the job opportunity.

• I am excited about the prospect of working in a new location and experiencing a different culture.

• I have researched Udaipur and believe it would be a great place for me to live and work.

SQL query to return latest login date for each primary key

• Use GROUP BY clause to group by primary key

• Use MAX() function to get the latest login date

• Join the tables if necessary

Use a hashmap to store the frequency of each number in the array.

• Create a hashmap to store the frequency of each number in the array.

• Iterate through the array and update the frequency in the hashmap.

• Retrieve the frequency of the desired number from the hashmap.

Use regular expressions to validate array elements efficiently.

• Use regular expressions to define the rules for validation.

• Iterate through the array and apply the regular expression to each element.

• Return true if all elements pass the validation rules, false otherwise.