Write a query to retrieve duplicate records from a table?
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What is 4 post in the data center?
Difference between delete and truncate in SQL?
Advantages of java over c
Technical question on extracting data from unstructred question and 2nd question on analysis of transaction data
Write a constant-time Python 3 implementation of LRU cache. Use any Python data structures. The provided unit tests must pass. You have 15 minutes.
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How would you design a recommendation system (like amazon)?
Code a data structure which allows us to store and retrieve items by key up to a fixed capacity. When we add items over capacity we free up space by removing an item first: 1) remove any expired item first 2) If there are no expired items, find the items with the lowest priority number, and remove the one which has been used least recently of them Optimise for time.
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