Zinier Sde1 Interview Questions and Answers

Q1. Angular structure
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Q2. Dependency injection
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Q1. Manageral questions
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Q2. Scenario based questions
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Q1. Package discussion
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Q1. Discuss the project you are most proud of
Ans. 
Developed a mobile app for tracking personal fitness goals
• Used React Native to create a cross-platform app

• Implemented features such as goal setting, progress tracking, and workout logging

• Integrated with wearable devices like Fitbit for automatic data syncing
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Q2. What are ways to speed up SQL queries? List them in increasing order of complexity?
Ans. 
Ways to speed up SQL queries in increasing order of complexity
• Use indexes on columns frequently used in WHERE clauses

• Optimize queries by avoiding unnecessary joins and subqueries

• Use stored procedures to reduce network traffic and improve performance

• Consider denormalizing tables for frequently accessed data

• Use query optimization techniques like query caching and query hints
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Q3. Is Redis single-threaded or multi-threaded?
Ans. 
Redis is single-threaded.
• Redis is single-threaded, meaning it can only execute one command at a time.

• This design choice allows Redis to be extremely fast and efficient for certain use cases.

• However, it also means that Redis may not be the best choice for highly concurrent workloads.
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Q4. What sort of data types can be used as keys in Python?
Ans. 
Data types that can be used as keys in Python include strings, integers, floats, tuples, and custom objects.
• Strings are commonly used as keys in Python dictionaries.

• Integers and floats can also be used as keys.

• Tuples can be used as keys if they only contain immutable elements.

• Custom objects can be used as keys if they are hashable.

• Examples: {'name': 'John'}, {1: 'apple'}, {(1, 2): 'tuple'}
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Q5. What types of indexing exist in SQL?
Ans. 
Types of indexing in SQL include clustered, non-clustered, unique, and composite indexes.
• Clustered index physically reorders the table based on the index key

• Non-clustered index creates a separate structure for the index

• Unique index ensures that all values in the index column are unique

• Composite index uses multiple columns for indexing
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Q1. They asked to design a database table
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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. Java basic questions OOP and simple code
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Q2. String manipulation and string index access
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Q1. Tell me about you self
Ans. 
I am a passionate software engineer with a strong background in computer science and experience in developing innovative solutions.
• Bachelor's degree in Computer Science from XYZ University

• Proficient in programming languages such as Java, Python, and C++

• Experience working on projects involving machine learning and artificial intelligence

• Strong problem-solving skills and ability to work in a team environment
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Q2. How do you see yourself after 5 year in this org ?
Ans. 
In 5 years, I see myself as a senior software engineer leading a team of developers, contributing to innovative projects, and continuously learning and growing in my role.
• Leading a team of developers on challenging projects

• Contributing to innovative software solutions

• Continuously learning and growing in my role

• Possibly pursuing advanced certifications or degrees to enhance my skills
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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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Q1. 2 rounds, 2 coding questions in each round. Managerial round.
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Q1. OOPs related questions.
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Q2. Joins, Indexes and some problems to write sql queries.
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