Apica Full Stack Engineer Interview Questions and Answers

Basic coding question

Q1. Basic Technical Question
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Q2. Questions on oops concept
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THERE ARE QUANTS, REASONING AND VERBAL

Q1. MY ROLE IS PROGRAM ANALYST TRAINEE. IN HR ROUND THEY ASKED ME IN CORE: 1. WHAT IS FLIP FLOP 2. WHAT IS DIODE IN PROGRAMMING: 1. WHAT IS ENCAPSULATION. 2. WHAT IS ABSTRACTION. 3. WHAT IS INHERITANCE. 4. ...read more
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Q2. AFTER TECHNICAL HR ROUND THERE IS PERSONAL HR ROUND. IN THAT ROUND THEY VERIFY OWR CERTIFICATE LIKE PAN, AADAAR CARD, 10TH AND 12TH CERTIFICATE.
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Q1. Find the second largest element from array
Ans. 
Find the second largest element from array of strings
• Sort the array in descending order

• Access the element at index 1 to get the second largest element
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Q2. Java basics and advanced programming
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Q3. Failsafe vs fail fast integrators
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Failsafe integrators prioritize system stability by handling errors gracefully, while fail fast integrators prioritize quick detection and resolution of errors.
• Failsafe integrators focus on ensuring the system continues to function even in the presence of errors.

• Fail fast integrators aim to quickly identify and address errors to prevent further issues.

• Failsafe integrators often use techniques like retries, circuit brea...read more
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Q1. Saga design patterns
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Q2. Micro services architecture
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Q1. Arrays reverse in js
Ans. 
Use the built-in reverse() method to reverse an array in JavaScript.
• Use the reverse() method on the array to reverse its elements in place.

• Example: let arr = ['apple', 'banana', 'cherry']; arr.reverse(); // ['cherry', 'banana', 'apple']
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Q2. String question various conditions
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1 hour
Aptitude test was conducted

Complex coding logics were asked

Good morning sir have a you sir my name is hemant Ramchandra narkhede

Java script simple frame

Q1. What are the different data types present in javascript?
Ans. 
JavaScript has several data types including string, number, boolean, object, function, undefined, and null.
• String: 'hello', '123'

• Number: 123, 3.14

• Boolean: true, false

• Object: { key: 'value' }

• Function: function() { }

• Undefined: undefined

• Null: null
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Q2. Difference between var and let keyword in javascript.
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var is function-scoped while let is block-scoped in JavaScript.
• var keyword is function-scoped, meaning it is accessible throughout the function it is declared in.

• let keyword is block-scoped, meaning it is only accessible within the block it is declared in.

• Using var can lead to variable hoisting issues, while let provides more predictable behavior.

• let allows for better variable scoping and reduces the risk of unintended
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Q1. What are the advantages of pair programming?
Ans. 
Pair programming promotes collaboration, knowledge sharing, and code quality.
• Enhances code quality through immediate code review and feedback

• Promotes knowledge sharing and learning from each other

• Fosters collaboration and teamwork

• Reduces the likelihood of bugs and errors

• Increases productivity by leveraging two minds on the same problem

• Helps in breaking down complex problems into smaller tasks

• Improves communication skil
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Q2. How do you handle constructive feedback about your full-stack development projects?
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Q1. How do you identify bugs in your code?
Ans. 
I use a combination of manual testing, unit testing, and debugging tools to identify bugs in my code.
• Perform manual testing by running the code and checking for any unexpected behavior or errors.

• Write unit tests to verify the functionality of individual components and catch any issues early on.

• Utilize debugging tools like breakpoints, logging, and stack traces to track down the root cause of bugs.

• Collaborate with team ...read more
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Q2. How long have you been coding primarily in Python?
Ans. 
I have been coding primarily in Python for 5 years.
• I started learning Python in college and have been using it extensively in my professional career.

• I have worked on various projects using Python, including web development, data analysis, and automation.

• I am proficient in Python libraries such as NumPy, Pandas, and Django.
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HR round full stack developer experience

Best atitude round questions

Q1. ES6 new features
Ans. 
ES6 introduces new features like arrow functions, classes, template literals, let and const declarations, and more.
• Arrow functions provide a more concise syntax for writing functions.

• Classes allow for easier object-oriented programming in JavaScript.

• Template literals enable easier string interpolation and multiline strings.

• let and const declarations provide block-scoped variables.

• ES6 also introduces features like destr...read more
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Q2. Closure and their coding questions
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Q3. Lazy loading and redux working in react
Ans. 
Lazy loading is a technique used to defer loading of non-essential resources until they are actually needed, while Redux is a state management library for React applications.
• Lazy loading in React involves dynamically importing components or modules only when they are required, improving performance by reducing initial load times.

• Redux is used in React applications to manage the state of the application in a predictable...read more
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Q4. Call by value & call by reference, object-related, hoisting etc
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Q5. How do we optimize the API and rendering in React?
Ans. 
Optimizing API and rendering in React involves reducing unnecessary API calls, using memoization, lazy loading, and code splitting.
• Reduce unnecessary API calls by batching requests or using GraphQL to fetch only required data.

• Use memoization techniques like useMemo and useCallback to prevent unnecessary re-renders.

• Implement lazy loading for components that are not immediately needed, improving initial load time.

• Utilize...read more
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