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Internals
Backend Developer
Internals questions
13 questions on Internals for backend developers, easiest first.
Easy
3
What load factor means
easy
Equal keys and hash values
easy
What a bucket is in a hash table
easy
Medium
4
Separate chaining vs open addressing
medium
Cost of resizing a hash table
medium
What makes a good hash function
medium
Designing a basic hash set
medium
Hard
6
Java HashMap worst case since Java 8
hard
When a Java HashMap resizes
hard
Deleting from an open-addressing table
hard
Clustering in linear probing
hard
Cuckoo hashing lookups
hard
Perfect hashing for a fixed key set
hard
