TCS AWS Developer Interview Questions and Answers

Q1. What are this aws
Ans. 
AWS (Amazon Web Services) is a cloud computing platform that offers a wide range of services for businesses and individuals.
• Provides services such as computing power, storage, databases, machine learning, and more

• Allows users to scale resources up or down based on demand

• Offers a pay-as-you-go pricing model

• Popular services include EC2 (Elastic Compute Cloud), S3 (Simple Storage Service), and RDS (Relational Database Ser
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Q2. What are the cloud providers
Ans. 
Cloud providers are companies that offer cloud computing services, allowing users to access and store data and applications on remote servers.
• Amazon Web Services (AWS)

• Microsoft Azure

• Google Cloud Platform

• IBM Cloud

• Oracle Cloud
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What are the tools on devops

Q1. Who was first used on aws
Ans. 
The first service used on AWS was Amazon Elastic Compute Cloud (EC2).
• Amazon EC2 was launched in 2006 as one of the first services offered by AWS.

• It allows users to rent virtual servers on which to run their own applications.

• EC2 provides scalable computing capacity in the cloud.

• Many other AWS services, such as S3 and RDS, rely on EC2 instances for their functionality.
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Q2. Netflix company
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Q1. What are the cloud computing models
Ans. 
Cloud computing models include SaaS, PaaS, and IaaS.
• Software as a Service (SaaS) - applications hosted on cloud and accessed via web browser (e.g. Gmail)

• Platform as a Service (PaaS) - platform and tools provided to develop, test, and deploy applications (e.g. AWS Elastic Beanstalk)

• Infrastructure as a Service (IaaS) - virtualized computing resources like servers, storage, and networking (e.g. AWS EC2)
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Q1. What is vpc and scerious
Ans. 
VPC stands for Virtual Private Cloud, a virtual network dedicated to an AWS account. SCERIOUS is not a recognized term in AWS.
• VPC is used to create isolated virtual networks within AWS

• It allows users to define their own IP address range, subnets, and route tables

• VPC provides control over network traffic, security, and connectivity options
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Q2. S3 name unique or nonuniqe
Ans. 
S3 bucket names are globally unique.
• S3 bucket names must be unique across all AWS accounts.

• Bucket names can contain lowercase letters, numbers, and hyphens.

• Bucket names cannot contain underscores, uppercase letters, or periods.

• Example of a valid bucket name: my-bucket-123

• Example of an invalid bucket name: My_Bucket
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Q3. Different between bound and unbound
Ans. 
Bound refers to a variable that is assigned to a specific value, while unbound refers to a variable that has not yet been assigned a value.
• Bound variables have a specific value assigned to them, while unbound variables do not.

• Bound variables are used in programming to store and manipulate data, while unbound variables are used to represent unknown values.

• Examples of bound variables include constants and variables that ...read more
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Q4. What are usecase of slave and master
Ans. 
Slaves and masters are used in distributed systems for load balancing and fault tolerance.
• In a distributed system, the master node controls and coordinates the work of the slave nodes.

• Slaves perform tasks assigned by the master and report back their results.

• Masters can be used for load balancing, where they distribute tasks evenly among slaves.

• Masters can also be used for fault tolerance, where they can detect when a s...read more
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Q5. About container which tools using container in aws devops
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Q6. Explain Aws and brefi
Ans. 
AWS is a cloud computing platform that provides a wide range of services for building and deploying applications.
• AWS offers services such as compute, storage, databases, and more

• It allows users to easily scale their applications and pay only for what they use

• Brefi is a serverless PHP runtime for AWS Lambda
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They gave some user story according to our coding skills.

Q1. Core python concepts basic and advance both.
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Q2. Questiins regarding AWS skills like IAM Role, S3, EC2, Redshift, Lambda, Kinesis, SES, SNS, SQS, CloudWatch, Glu.
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Q1. Duscussion for the salary package.
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Q1. Why did you choose the flask over the django and fastapi?
Ans. 
I chose Flask over Django and FastAPI due to its simplicity, flexibility, and ease of use for smaller projects.
• Flask is lightweight and minimalistic, making it easier to set up and use for smaller projects.

• Flask allows for more flexibility in terms of project structure and customization compared to Django.

• Flask is well-suited for rapid prototyping and smaller applications where simplicity is key.

• Django, on the other ha...read more
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Q2. Write the code for flask request and response block?
Ans. 
Flask request and response block code snippet
• Use Flask's request object to access incoming request data

• Use Flask's jsonify function to create a JSON response

• Handle different HTTP methods like GET, POST, etc. in the route function
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Q1. What is ORM? which ORM tool, have you used?
Ans. 
ORM stands for Object-Relational Mapping, a programming technique for converting data between incompatible type systems in object-oriented programming languages.
• ORM is used to map objects from an application to tables in a relational database.

• It simplifies data manipulation by allowing developers to work with objects instead of SQL queries.

• Popular ORM tools include Hibernate for Java, Entity Framework for .NET, and Seq
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Q2. Write ORM code for select item from table?
Ans. 
Use ORM code to select item from a table in database.
• Use ORM query methods like find(), findOne(), or where() to select items from a table.

• Specify the table name and any conditions for the selection.

• Example: User.find({ where: { id: 1 } }) will select a user with id 1 from the User table.
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General aptitude, computer science fundamentals multiple-choice questions, and data structures and algorithms multiple-choice questions were asked.

Q1. Given a string, write a function to reverse the string.
Ans. 
Function to reverse a given string
• Create an empty string to store the reversed string

• Iterate through the input string in reverse order and append each character to the new string

• Return the reversed string
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Q2. Given a sorted array of integers, write a function to perform a binary search to find the index of a target value. If the target value is not found, return -1.
Ans. 
Binary search function to find target value in sorted array
• Define function that takes sorted array and target value as input

• Initialize variables for start, end, and middle indices

• Use while loop to iterate until start is less than or equal to end
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Q1. About the company
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Q2. What are three significant achievements in your life?
Ans. 
Graduating with honors, winning a hackathon, volunteering in a developing country
• Graduated with honors from university with a degree in Computer Science

• Won first place in a hackathon competition by developing a unique and innovative software solution

• Volunteered in a developing country to help build schools and provide education to underprivileged children
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Q1. Ui development and component related
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Q2. Performance of technology and challenges
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Q1. Personal introduction and location details
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Q2. Negatition of salries excepectations
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Q1. Basic html css questions
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Logical reasoning, quantitative analysis and computer test

Q1. Basic html, css, javascript questions
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Q1. Salary discussion
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