1K Networks Software Developer Interview Questions and Answers

Q1. Laravel based questions
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Q1. Basic questions
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Q1. Arrays problems
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Q2. Sliding window problem
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Sliding window problem involves finding a subarray of fixed size k with maximum sum.
• Use a sliding window approach to iterate through the array and calculate the sum of each subarray of size k.

• Keep track of the maximum sum encountered so far.

• Move the window by one element at a time and update the sum accordingly.

• Example: Given array [1, 3, -1, -3, 5, 3, 6, 7] and k = 3, the subarray with maximum sum is [5, 3, 6] with su
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Q1. Coding round related to Android
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Q1. Current project in detail
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The test was quite simple but the interviewer was not ready to accept the solution. Even with complete dry run and working output he denied the solution giving a very vague reason.

Q1. In this design round , they asked me to demonstrate how to build cowin app. Gave a complete overview including HLD and LLD for each showcased feature still got negative response.
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2 coding questions and a few MCQs

Q1. Asked to explain and optimise my solution from coding test
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Q1. Behavioral round. Asked about resume.
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Q1. General HR round and trying to find if you're a right fit for the company
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Q1. Related to project
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Q2. Deployment and maintenance
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Coding test contains 2 questions 1 moderate and 1 easy level

Q1. Asked about DSA,Heap sort,Merge sort.
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Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Graduated with a degree in Computer Science

• Worked on various projects using Java and Python

• Familiar with web development technologies like HTML, CSS, and JavaScript
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Q2. Why Lowe's,how can Lowe's improve its customer services
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I believe Lowe's is a reputable company with a strong focus on customer satisfaction. They can improve their customer services by implementing personalized recommendations, enhancing their online platform, and providing better in-store experiences.
• Implement personalized recommendations based on customer preferences and purchase history

• Enhance the online platform for easier navigation, product search, and checkout proce...read more
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Q1. Why string arr immutable
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String arrays are immutable because they cannot be changed once created.
• Strings in an array cannot be modified individually

• Any changes to a string array result in a new array being created

• Immutable arrays ensure data integrity and prevent unintended side effects
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Q2. How we can create a custom immutable class
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To create a custom immutable class, use final keyword for class, private final fields, and no setter methods.
• Use the final keyword for the class to prevent inheritance

• Declare all fields as private and final to prevent modification

• Do not provide setter methods for the fields to maintain immutability

• Provide getter methods to access the fields
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