CARS24 Sdet Lead Interview Questions and Answers

Q1. What is clousers
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Q2. What is promises
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Q1. Explain javascript architecture
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Q2. What is mvvm architecture
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Q1. Given a string remove the vowels and make the first letter of each word of the string in capital letter/ uppercase.
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Q1. Usual HR questions and salary discussion
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2 question of DSA (easy, medium) in 60 minutes

Q1. Playlist Shuffle
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Q2. Deletion in min heap
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Deletion in min heap involves removing the root node and rearranging the heap to maintain the min heap property.
• To delete the root node in a min heap, swap it with the last node in the heap.

• Remove the last node and then heapify the heap starting from the root to maintain the min heap property.

• Example: If the min heap is [10, 20, 30, 25, 40], after deletion the heap becomes [20, 25, 30, 40].
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It was a leetcode medium, related BFS,

Q1. Basic of android like fragment activity communication
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Q2. Why ViewModel is necessary, how does it save state
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ViewModel is necessary in Android development to save and manage UI-related data during configuration changes.
• ViewModel helps in retaining data during configuration changes like screen rotations

• It separates UI-related data from UI controller (Activity/Fragment)

• ViewModel survives configuration changes and can be shared between fragments

• It helps in maintaining data consistency and prevents memory leaks

• ViewModel is lifecy...read more
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Hackerrank - 3 questions 2 hrs

Coding conecpt, apti

Q1. Basic dsa, puzzles
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Q1. Basic dsa, dbms
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Hackerrank test with medium questions

Q1. Machine coding round to design a shopping cart
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