SCS Tech AWS Engineer Interview Questions and Answers

90 MINUTES 90 QUESTIONS

5 QUESTIONS OF BASIC ARRAY AND STRING

Q1. WHAT IS MEMORY HEAP IN JAVA
Ans. 
Memory heap in Java is a region of memory where objects are stored during program execution.
• Memory heap is managed by the JVM and is separate from the stack.

• Objects created in Java are stored in the heap.

• Heap memory is divided into two regions: Young Generation and Old Generation.

• Garbage collection is used to reclaim memory in the heap by removing unused objects.
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Q2. INTRODUCE YOURSELF
Ans. 
I am a DevOps Engineer with 5 years of experience in automating, optimizing, and monitoring software development processes.
• 5 years of experience in DevOps

• Proficient in automating software development processes

• Skilled in optimizing and monitoring workflows

• Strong knowledge of CI/CD pipelines

• Experience with tools like Jenkins, Docker, Kubernetes
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Q1. What is promise
Ans. 
A promise is an object representing the eventual completion or failure of an asynchronous operation.
• Promises are used in JavaScript to handle asynchronous operations.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and failure callbacks.

• Example: Fetching data from an API returns a promise that resolves with the data or rejects with an error.
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Q2. What is hoisting
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.
• Variable and function declarations are hoisted to the top of their scope.

• Only declarations are hoisted, not initializations.

• Function declarations take precedence over variable declarations.
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Q1. What is event loop
Ans. 
Event loop is a mechanism in programming that allows for asynchronous execution of code by continuously checking for and handling events.
• Event loop is commonly used in JavaScript to handle asynchronous operations like setTimeout, setInterval, and AJAX requests.

• It allows for non-blocking I/O operations, ensuring that the program can continue running while waiting for I/O operations to complete.

• Event loop works by contin...read more
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Q1. Questions regarding basic Spark architecture
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Sicario based questions in Databricks and azure data factory

Q1. Conflict resolution in team, and regarding my current role
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Q1. General HR questions, Why do you want our join our company
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Q1. Tell me about yourself
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Q2. Tell me about redux in reactJs
Ans. 
Redux is a state management library for React applications.
• Redux helps manage the state of your application in a predictable way

• It stores the state of your application in a single immutable state tree

• Actions are dispatched to update the state using reducers

• Components can subscribe to the state changes using connect() function
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Just a question need to count no. of digits of each element of the array and return them

1. Search in a row and column wise sorted matrix

Q1. 1. Web Fundamentals
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Q2. 2.Localstorage vs session storage
Ans. 
Localstorage stores data with no expiration date, while session storage stores data for one session only.
• Localstorage data persists even after the browser is closed, while session storage data is cleared when the session ends.

• Localstorage has a larger storage capacity compared to session storage.

• Localstorage data is accessible across different tabs and windows of the same browser, while session storage data is limited ...read more
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Carbon footprint and ways to achieve

1. which data structure is used to create an editor?

Basic grammer, maths questions,

Q1. Basic questions on programming languages
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Q2. Oops concepts, collections, method overloading, method overriding
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Q1. Tell me about your self?
Ans. 
I am a software engineer with experience in developing and maintaining software applications.
• Proficient in programming languages such as Java, C++, and Python

• Experience in developing web applications using frameworks like Spring and Django

• Strong problem-solving and analytical skills

• Familiarity with version control systems like Git

• Ability to work in a team and collaborate effectively
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Q2. What is your salary expectations?
Ans. 
I am open to discussing salary based on the responsibilities and requirements of the position.
• I am flexible and open to negotiation.

• I am looking for a competitive salary based on my skills and experience.

• I am interested in discussing the overall compensation package, including benefits and bonuses.

• I am open to considering other forms of compensation, such as stock options or profit sharing.

• I would like to learn more ab...read more
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