Koch Business Solutions Product Design Engineer Interview Questions and Answers

Round duration - 120 minutes
Round difficulty - Medium

60 question related to aptitude(Probability, Numeric analysis, etc)
3 question related to coding(Data Structure, Linked list, etc).
total of 120 min(60 + 60)

Q1. 
Segregate Odd-Even Problem Statement
In a wedding ceremony at NinjaLand, attendees are blindfolded. People from the bride’s side hold odd numbers, while people from the groom’s side hold even numbers. For...read more
Ans. 
Rearrange a linked list such that odd numbers appear before even numbers while preserving the order of appearance.
• Iterate through the linked list and separate odd and even numbers into two separate lists.

• Merge the two lists while maintaining the original order of appearance.

• Ensure to handle cases where there are no odd or even numbers in the list.
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Total timing for test : 128 min

There are five sections in the online test :
1. Quants
2.Verbal
3.Logical
4.Essay Writing
5.Coding

U can practice the above on any good platform

Q1. Difference between singly linked list and doubly linked list , OOP concepts , Prime number logic ,Armstrong number logic
Ans. 
Explaining the difference between singly and doubly linked lists and discussing OOP concepts, prime number and Armstrong number logic.
• Singly linked list has one pointer to the next node while doubly linked list has two pointers to the next and previous nodes.

• OOP concepts include encapsulation, inheritance, and polymorphism.

• Prime number logic involves checking if a number is only divisible by 1 and itself.

• Armstrong numb...read more
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