Celigo Junior Software Developer Interview Questions and Answers

Q1. They asked so many questions from it went well
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Q2. How was your experience
Ans. 
My experience as a software developer has been enriching, filled with diverse projects and continuous learning opportunities.
• Worked on a team to develop a web application that improved user engagement by 30%.

• Implemented a microservices architecture that enhanced system scalability and maintainability.

• Participated in code reviews, which improved code quality and fostered team collaboration.

• Led a project to migrate legac...read more
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It also had apptitude questions as well

Q1. Object oriented programming concepts like class , object , constructor , polymorphism, etc. The question tested deep knowledge of OOPS
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Q2. Static and dynamic casting
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Q1. What was my work in my internship?
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Q2. I was in the field of Cybersecurity so they cross questioned me on that field like kubernetes security , Active Directory and cloud security
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Q1. Are you willing to re-locate?
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Q2. What are your motives to join this particular company
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Q1. Discuss the project you are most proud of
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Q2. What are ways to speed up SQL queries? List them in increasing order of complexity?
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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?
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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?
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2 coding questions medium level

Q1. All related to python
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Q2. ANd Golang
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Q1. Questions were completely based on data structures and algorithm
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Q2. SQL based questions were also asked
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Q1. -SQL basics , HTML and basic javascript
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Q1. What is closure? Application and concept understanding
Ans. 
Closure is a function that captures the environment in which it was created, allowing it to access variables from that environment even after the function has finished executing.
• Closure allows a function to access variables from its outer scope even after the function has finished executing.

• It 'closes over' the variables from the outer scope, preserving their values.

• Example: function outerFunction() { let outerVar = 'I...read more
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Q2. What is event loop?
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Event loop is a mechanism that allows for asynchronous programming by handling and executing events in a loop.
• Event loop is a part of the runtime environment that listens for events and executes callback functions.

• It allows for non-blocking I/O operations by delegating tasks to the operating system.

• Event loop is commonly used in JavaScript for handling asynchronous operations like setTimeout, setInterval, and AJAX requ...read more
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Q1. Past Experience and System Design
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Q1. DSA and System Design
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Q1. Past Experience and System Design
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