Atlassian Software Engineer Interview Questions and Answers

The coding test consists of multiple-choice questions and one medium-hard level coding question.

Q1. Given three jugs with different capacities and no measuring tools, how can you measure out a specific amount of water using the jugs you have?
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Q2. What is the angle between the minute and hour hand of a clock at 3:45?
Ans. 
The angle between the minute and hour hand of a clock at 3:45 is 157.5 degrees.
• Calculate the angle formed by the hour hand from 12 o'clock position to 3:45 position (135 degrees)

• Calculate the angle formed by the minute hand from 12 o'clock position to 3:45 position (22.5 degrees)

• Subtract the smaller angle from the larger angle to get the angle between the two hands (157.5 degrees)
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Q3. What is indexing in Database Management Systems (DBMS)?
Ans. 
Indexing in DBMS is a technique used to improve the performance of queries by allowing faster retrieval of data.
• Indexes are data structures that store a small portion of the data set in an easily searchable format.

• They help in speeding up the data retrieval process by reducing the number of disk accesses needed.

• Indexes can be created on one or more columns of a table to improve the performance of SELECT queries.

• Example...read more
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Q4. What is the lifecycle of a React component?
Ans. 
The lifecycle of a React component includes mounting, updating, and unmounting phases.
• Mounting phase: constructor, render, componentDidMount

• Updating phase: shouldComponentUpdate, render, componentDidUpdate

• Unmounting phase: componentWillUnmount
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Q5. How you delete entry in mongodb database
Ans. 
To delete an entry in MongoDB database, you can use the deleteOne() or deleteMany() methods.
• Use deleteOne() method to delete a single document based on a specific condition

• Use deleteMany() method to delete multiple documents based on a specific condition

• Make sure to specify the filter criteria to accurately delete the desired entry
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Q1. Coding question based on stacks
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Q2. Java and Spring Boot questions..too much grilling
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Q1. Javascript and Nodejs concepts
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Q1. Nodejs + React concepts in depth
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HashMaps and String-based questions

Q1. The interview asked 2 coding questions: 1. 2-Sum 2. Largest Palindrome in a string Apart from this there were questions on real life OOPS principles
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Q1. This was a resume drill-down on projects/skills. It had CS fundamental questions along with OOPs questions
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Q1. It was a manager round having standard team based/ situation based leadership questions
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Q1. Standard HR questions- strength/weakness
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Q1. Project details question
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