Vestas Software Developer Interview Questions and Answers

Finding number with most frequency in 1M size array of strings.

• Use a hash table to store the frequency of each number.

• Iterate through the array and update the frequency in the hash table.

• Find the number with the highest frequency in the hash table.

To find length of linked list in single iteration, use two pointers and traverse the list until the end.

• Use two pointers, one moving one node at a time and the other moving two nodes at a time.

• Traverse the list until the end is reached.

• The number of iterations taken by the faster pointer to reach the end is the length of the linked list.

Questions related to torque, gearbox, torque limiter and coupling failure, yawing system bearing, and accumulator.

• Torque is a measure of rotational force.

• Gearbox works by transmitting power from the engine to the wheels.

• Torque limiter failure can be caused by overloading or overheating.

• Coupling failure can be caused by misalignment or excessive torque.

• Yawing system bearing is a type of roller bearing used to support th...read more

A substation in charge is responsible for the safe and efficient operation of an electrical substation.

• Overseeing the maintenance and repair of equipment

• Ensuring compliance with safety regulations

• Managing a team of technicians and operators

• Monitoring power flow and voltage levels

• Troubleshooting and resolving issues

• Coordinating with other departments and utilities

• Preparing reports and documentation