ParallelDots Software Developer Interview Questions and Answers

Q1. How python dictionary is implemented internally ?
Ans. 
Python dictionary is implemented using hash tables.
• Python dictionary is a collection of key-value pairs.

• The keys in a dictionary must be unique and immutable.

• The values in a dictionary can be of any data type.

• Python dictionary is implemented using hash tables.

• Hash tables provide constant time complexity for insertion, deletion and retrieval of elements.

• The hash function used in Python dictionary is based on the key's h...read more
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Q2. What is heap sort
Ans. 
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
• It divides the input into a sorted and an unsorted region.

• It repeatedly extracts the maximum element from the unsorted region and inserts it into the sorted region.

• It has a time complexity of O(n log n) and is not stable.

• Example: [8, 5, 3, 1, 9, 6, 0, 7, 4, 2] -> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
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Q3. Coding question to sort array based on a custom filter
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It just like like a screen test they will ask you questions based on your cv

It will hardly take 30minutes to complete the test.

It will take hardly 30 minutes to complete coding test.

Q1. A technical person will take your interview it will about 20 to 30minutes
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Q2. What is difference between list and tuple? They will ask to code for some questions?
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Contracts review and abstraction

Q1. Contracts and essential elements
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Q1. Tell me about yourself?
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Q2. Why are you the right fit for this role?
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Q1. Languages known
Ans. 
I am fluent in English, Spanish, and French.
• English

• Spanish

• French
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Problem solving approach check

Q1. Case study and problem solving
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Q2. Root cause Analysis
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