IBM AWS and Linux Administrator Interview Questions and Answers for Freshers

Q1. How to give access of s3 bucket to user in a secure way?
Ans. 
Grant access to S3 bucket securely by using IAM policies and roles.
• Create an IAM policy with specific permissions for the S3 bucket

• Attach the IAM policy to an IAM role

• Assign the IAM role to the user or group that needs access

• Use bucket policies for more granular control if needed
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Q2. Difference between iam role and iam group?
Ans. 
IAM role is used to grant permissions to entities, while IAM group is used to group users with similar permissions.
• IAM role is used to delegate permissions to entities like EC2 instances or Lambda functions

• IAM group is used to group users with similar permissions for easier management

• IAM role can be assumed by trusted entities, while IAM group is used for managing user permissions
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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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Four sections were there in aptitude test

Q1. Write a code to print table of any number
Ans. 
Code to print table of any number in Python
• Use a loop to iterate from 1 to 10 (for a 10x table)

• Multiply the number by the current iteration value

• Print the result for each iteration
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Q2. What do you know about cloud computing
Ans. 
Cloud computing is the delivery of computing services over the internet, including servers, storage, databases, networking, software, and more.
• Cloud computing allows users to access and use resources on-demand without the need for physical infrastructure.

• It offers scalability, flexibility, cost-effectiveness, and increased efficiency.

• Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azur
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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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Q1. What is tar command
Ans. 
tar is a command-line utility used for archiving files and directories into a single file.
• Can be used to compress and decompress files

• Can preserve file permissions and ownership

• Can create and extract archives in various formats

• Commonly used with gzip and bzip2 for compression

• Example: tar -cvzf archive.tar.gz /path/to/directory
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Q2. What is dns server
Ans. 
DNS server is a computer server that contains a database of public IP addresses and their associated hostnames.
• DNS stands for Domain Name System

• It translates domain names into IP addresses

• It helps in resolving internet requests

• Examples of DNS servers are Google DNS, OpenDNS, etc.
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Q1. I mentioned java and python in my skills so 80% questions were from java only
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Q2. And then few were from python and oops concepts
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Q1. Where do you see yourself in 5 years?
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Q2. Why should we hire you?
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Q3. What are your strengths and weaknesses?
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Q4. Tell me about yourself.
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Quantitative aptitude and logical aptitude test

There will be 2 code and you need to understand and input missing lines then run it, after successful completion you will be selected for round 3. You need to run at least 1 code successfully.