Zopsmart Technology Sde1 Interview Questions and Answers

2 Leetcode Medium questions on hackerrank

Q1. Kadane algorithm based question
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Q2. Leetcode medium
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Q3. Resume based questions
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Q1. Probability question math problem
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Q2. Puzzle to solve
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Q3. AI based question
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Q4. 1 question to solve Leetcode medium
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Q1. What is Build testing, shift left testing
Ans. 
Build testing is testing the software build to ensure it meets requirements. Shift left testing is moving testing earlier in the development process.
• Build testing involves testing the software build to ensure it meets functional and non-functional requirements

• Shift left testing is the practice of moving testing activities earlier in the software development process to catch defects sooner

• By shifting testing left, defec...read more
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Q2. Write manual test cases for whatapp security features
Ans. 
Manual test cases for WhatsApp security features
• Verify end-to-end encryption is enabled for all messages

• Test two-factor authentication setup and login process

• Check for secure storage of user data on the device

• Test for secure transmission of media files

• Verify the effectiveness of blocking and reporting features
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4 coding questions were asked

Q1. Puzzle 25,5 horses and no.of horses
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Q2. Intro ,project discussion
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Max triangle height where you have given blue ball and red ball to arrange and make it traingle

Q1. Regex related related programming question
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Q1. Pointless basic questions is what they asked
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Q1. They had this round for hours together
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Basic dsa questions and java spring boot questions

Q1. Bookmyshow design
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Q2. Notification service design
Ans. 
Design a notification service for sending alerts to users.
• Use a scalable messaging system like Kafka or RabbitMQ to handle high volume of notifications.

• Implement a notification queue to ensure reliable delivery of notifications.

• Include support for different types of notifications such as email, SMS, and push notifications.

• Allow users to customize their notification preferences and frequency.

• Implement monitoring and log...read more
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Q1. Mimic Dataframe Merge
Ans. 
Implement a function to mimic the functionality of merging two DataFrames in Python.
• Create a function that takes two DataFrames as input.

• Merge the two DataFrames based on a common column or index.

• Handle different types of joins like inner, outer, left, and right joins.

• Return the merged DataFrame as output.
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Q2. Improve above case by case
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1 hour - Find longest palindromic substring