Litmus Information Systems Interview Questions and Answers

Based on my CV, they assigned me a task related to data migration.

Q1. Project reviews
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Q2. Attendance regarding
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Q1. React hooks related How to use them
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Q2. About web socket real time messaging
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Q3. About react router dom
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There was an OA on hackerearth of an hour. In that there were 20 MCQs and two DSA questions easy to medium on Heap, Hashmap and Subarray

Q1. Asked about previous worked project in last company
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Q2. Asked one medium DSA question (DNA sequencing) and asked to design some schema
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Q3. Asked one puzzle If there are 1000 bottles and one is poisonous, a rat will diw after one hour of drinking and you have only one hour to find out which bottle is poisonous, How many minimum rats you need ?
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Q1. Leetcode Medium Question -- Container most water
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Q1. LLD, Design patterns, Operating system
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Q1. Tell me about yourself
Ans. 
I am a dedicated and experienced professional with a strong background in project management and team leadership.
• Over 8 years of experience in project management

• Successfully led cross-functional teams to deliver projects on time and within budget

• Strong communication and interpersonal skills

• Proven track record of driving results and exceeding goals
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Q2. Why should we hire you
Ans. 
I have a proven track record of delivering exceptional results and possess the skills and experience necessary to excel in this role.
• Proven track record of exceeding performance targets

• Strong communication and leadership skills

• Extensive experience in the industry

• Ability to work effectively in a team environment

• Passion for continuous learning and professional development
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Q3. Why should we buy your product
Ans. 
Our product offers innovative solutions to streamline processes, increase efficiency, and drive growth.
• Our product has been proven to save companies time and money by automating repetitive tasks.

• We provide excellent customer support and training to ensure successful implementation.

• Our product is constantly updated with new features and improvements based on customer feedback.

• Competitive pricing compared to similar prod...read more
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Round duration - 90 minutes
Round difficulty - Easy

Timing was 10:00 AM. Platform was good.

Q1. 
Subarray With Given Sum Problem Statement
Given an array ARR of N integers and an integer S, determine if there exists a contiguous subarray within the array with a sum equal to S. If such a subarray exis...read more
Ans. 
Given an array of integers, find a subarray with a given sum S.
• Iterate through the array while keeping track of the current sum and start index.

• Use a hashmap to store the sum and its corresponding index.

• If the current sum - S is found in the hashmap, a subarray with sum S exists.

• Return the start index and current index as the end index.
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Q2. 
Remove Consecutive Duplicates Problem Statement
Given a string S, your task is to recursively remove all consecutive duplicate characters from the string.
Input:
String S
Output:
Output string
Constr...read more
Ans. 
Recursively remove consecutive duplicate characters from a string.
• Use recursion to check if the current character is the same as the next character, if so skip the next character

• Base case: if string length is 1, return the string

• Example: Input: 'aabbc' Output: 'abc'
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There are three sections: -
1. Quants
2. English
3. Reasoning
All sections are accessible medium but you have maintained the speed and accuracy.
after that coding snippet are in java/python.

Code snippets are there in coding sections.