Inciterz Junior Software Developer Interview Questions and Answers

Q1. How python dictionary is implemented internally ?
Ans. 
Python dictionary is implemented using hash tables.
• Python dictionary is a collection of key-value pairs.

• The keys in a dictionary must be unique and immutable.

• The values in a dictionary can be of any data type.

• Python dictionary is implemented using hash tables.

• Hash tables provide constant time complexity for insertion, deletion and retrieval of elements.

• The hash function used in Python dictionary is based on the key's h...read more
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Q2. What is heap sort
Ans. 
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
• It divides the input into a sorted and an unsorted region.

• It repeatedly extracts the maximum element from the unsorted region and inserts it into the sorted region.

• It has a time complexity of O(n log n) and is not stable.

• Example: [8, 5, 3, 1, 9, 6, 0, 7, 4, 2] -> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
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Q3. Coding question to sort array based on a custom filter
Ans. 
Sort an array of strings based on a custom filter criteria.
• Define the custom filter criteria (e.g., length, alphabetical order).

• Use built-in sorting functions with a comparator.

• Example: Sort by length: ['apple', 'banana', 'kiwi'] -> ['kiwi', 'apple', 'banana'].

• Example: Sort alphabetically: ['banana', 'apple', 'kiwi'] -> ['apple', 'banana', 'kiwi'].
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DSA questions asked in an interview

Core HTML, CSS and JS

JS deep dive and react

Q1. Mimic Promise.all, Array.flat, OTP Component etc
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Q1. How to center a div?
Ans. 
Centering a div can be achieved using various CSS techniques, including flexbox, grid, and margin auto.
• Using Flexbox: Set the parent container to display: flex; and justify-content: center; align-items: center; to center the div both horizontally and vertically.

• Using Grid: Set the parent container to display: grid; and use place-items: center; to center the div in both directions.

• Using Margin Auto: For a block-level di...read more
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Q2. How to install NPM?
Ans. 
NPM is a package manager for JavaScript, essential for managing libraries and dependencies in Node.js applications.
• Install Node.js: NPM comes bundled with Node.js, so first, download and install Node.js from the official website (https://nodejs.org).

• Verify Installation: After installation, open your terminal or command prompt and run 'npm -v' to check if NPM is installed correctly.

• Update NPM: You can update NPM to the ...read more
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Q3. What does Switch Branch Does in GITHUB
Ans. 
Switching branches in GitHub allows developers to navigate between different lines of development in a repository.
• Branching: Each branch represents an independent line of development, allowing multiple features or fixes to be worked on simultaneously.

• Switch Command: The command 'git checkout <branch-name>' is used to switch to a different branch in your local repository.

• Isolation: Changes made in one branch do no...read more
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Q1. Discussion on sales, areas and target
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Q1. Discussion about product, target etc
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Contracts review and abstraction

Q1. Contracts and essential elements
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Q1. Tell me about yourself?
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Q2. Why are you the right fit for this role?
Ans. 
I possess the analytical skills, industry knowledge, and collaborative mindset essential for a successful Business Analyst.
• Strong analytical skills: I have experience in data analysis using tools like Excel and SQL, which helped my previous team identify key trends.

• Industry knowledge: I have worked in the finance sector, understanding regulatory requirements and market dynamics, which is crucial for informed decision-m...read more
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