XYZ Distributors Sdet Manager Interview Questions and Answers

Hackerrank - 3 questions 2 hrs

Q1. Selenium,Rest assured ,API,java
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Hackerrank test with medium questions

Q1. Machine coding round to design a shopping cart
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Q1. Automate calendar
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Q2. OOps concept in java
Ans. 
Object-oriented programming concepts in Java focus on classes, objects, inheritance, encapsulation, and polymorphism.
• Classes are blueprints for objects

• Objects are instances of classes

• Inheritance allows a class to inherit properties and behaviors from another class

• Encapsulation hides the internal state of an object and only exposes necessary functionalities

• Polymorphism allows objects to be treated as instances of their
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Round duration - 60 minutes
Round difficulty - Medium

1 Medium/Easy DSA questions were asked similar to Leetcode.

I was expected to come up with the most optimal solution for the same. I completed the code and explained in 45 mins.

In the remaining time, I was asked questions from Computer Science fundamentals and Java

Q1. 
Unique Element In Sorted Array
Nobita wants to impress Shizuka by correctly guessing her lucky number. Shizuka provides a sorted list where every number appears twice, except for her lucky number, which a...read more
Ans. 
As the array was sorted we can make use of this information to use Binary Search.


// EXPLANATION:-
// Suppose array is [1, 1, 2, 2, 3, 3, 4, 5, 5]
// we can observe that for each pair, 
// first element takes even position and second element takes odd position
// for example, 1 is appeared as a pair,
// so it takes 0 and 1 positions. similarly for all the pairs also.

// this pattern will be missed when single element is ...read more
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Round duration - 60 minutes
Round difficulty - Easy

Low-level system design round. 
Expected to come up with a running code.

Q1. 
LRU Cache Implementation Problem
Design and implement a Least Recently Used (LRU) cache data structure. This cache must support the following operations efficiently:
• get(key): Return the value associate...read more
Ans. 
Tip 1 : Ask clarification questions
Tip 2 : Try and think in terms of brute force and then gradually optimize your solution
Tip 3 : Ensure to check for edge cases
Tip 4 : Ensure to be thorough with data structures, algorithms and system design concepts.
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Round duration - 30 minutes
Round difficulty - Easy

Standard behavioural questions by HR

Q1. Can you describe your past work experiences and projects from your previous company?
Ans. 
Ensure that you are thorough with the design of your project at your current organization.
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Round duration - 60 Minutes
Round difficulty - Medium

Timing was around 11 am
Environment was great, it intrigued me to join Blinkit.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
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Round duration - 60 Minutes
Round difficulty - Medium

Timing 11 am
Interviewer had good knowledge

Q1. Can you explain the activity lifecycle in Android development?
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Q2. Can you explain the fragment lifecycle in Android development?
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Q3. Can you explain the MVVM pattern?
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Round duration - 30 Minutes
Round difficulty - Easy

This round is cultural fit round