Knowledgeworks Global Senior Associate Interview Questions and Answers

Map coding in C++ : what data structure to use which is fastest for retrieval of data

Q1. Fastest data structure retrieval by providing the key value.
Ans. 
Hash table is the fastest data structure for retrieval by providing the key value.
• Hash table uses a hash function to compute an index into an array of buckets or slots, from which the desired value can be found.

• Example: Python dictionary, Java HashMap, C++ unordered_map.

• Complexity: O(1) on average for retrieval.
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Q1. Frontend related questions
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Backend fastapi questions

Q1. This is for freshers
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Q2. All rounds information
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They will give javascript coding(based on your role)question we need to solve and submit the solution

Q1. Asked basic js questions and some logical questions
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Dsa question about maps

Q1. Design robotic restaurant
Ans. 
Robotic restaurant design for automated food preparation and delivery
• Implement robotic arms for cooking and food preparation

• Utilize conveyor belts for transporting dishes to customers

• Incorporate automated order taking and payment systems

• Design a user-friendly interface for customers to place orders and customize meals

• Ensure efficient cleaning and maintenance processes for the robots
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Q2. How to achieve fault tolerance
Ans. 
Achieve fault tolerance by implementing redundancy, monitoring systems, and graceful degradation.
• Implement redundancy by having backup systems in place to take over in case of failure

• Monitor systems continuously to detect faults and address them proactively

• Use graceful degradation to ensure that the system remains functional even if certain components fail
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Design coupon system based on reqs

Q1. Brute force algo
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Q2. Cdn type questions
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