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01: AWS interview Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups

This extends Architecture Networking. The above diagram addresses many of the questions that follow. Q1. What is a VPC in AWS? A1. A virtual private cloud (VPC) is a virtual network dedicated to your AWS account. It is logically isolated from other virtual networks in the AWS Cloud.… Read more ...



02: AWS Identity & Access Management (i.e. IAM) interview Q&As

Q1. What is IAM? A1. IAM stands for Identity & Access Management. AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS resources. You use IAM to control who is authenticated (i.e. signed in) and authorized (i.e.… Read more ...



12 Amazon Redshift interview Q&As

Q1. What is Amazon Redshift? A1. Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. You can start with just a few hundred gigabytes of data and scale to a petabyte or more. This enables you to use your data to acquire new insights for your…

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15 EC2 instances interview Q&As

Q01. What is an Amazon EC2 Service ? A01. EC2 stands for Elastic Cloud Computing that provides resizable (i.e. scalable) computing capacity in the cloud. You can use Amazon EC2 to launch as many virtual servers as you need. In EC2 you can configure security and networking as well as…

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15+ AWS Services overview interview Q&As

Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups: Q1. What is the difference between CloudWatch & CloudTrail? A1. Both provide logging capabilities. CloudTrail is for logging “Who did what?”… Read more ...



18 Amazon S3 interview Q&As

Q01. What is Amazon S3 storage? A01. S3 stands for Simple Storage Service, which provides storage through web service interfaces. Unlike the other storage systems like Unix file system, HDFS (i.e. Hadoop Distributed File System), etc which are based on having folders and files, the S3 is based on a…

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18: Q121 – Q124 Choosing between HDFS & AWS S3 for BigData projects interview Q&As

More and more organisations are adopting the policy of “Cloud first architecture” where Cloud based storages like AWS S3 plays a major role. A data lake is a storage repository that holds a vast amount of structured, semi-structured, and unstructured raw data in its native format (aka pristine condition).… Read more ...



21: Q138 – Q142 AWS data lakes overview Interview Q&As

Q138. What are the basic considerations when building a data lake on an AWS platform?
A138.

1. Ingestion into S3 (i.e. Simple Storage Service) from different source systems. E.g. csv/xml/json files extracted from source systems, streamed data from source systems via message queues/topics, etc.… Read more ...



5 Amazon EMR Vs. Cloudera interview Q&As

Q1. What is Amazon EMR? A1. EMR stands for Elastic Map Reduce, which is an Amazon Web Services (AWS) tool for big data processing and analysis. Amazon EMR offers elastic, cost-effective, and expandable low-configuration service as an alternative to running an on premise or EC2 cloude based Hadoop cluster (E.g….… Read more ...



Amazon Athena, Redshift, Redshift spectrum & Presto Q&As

Q1. What is AWS Athena? What are its capabilities? A1. Amazon Athena is an interactive query service that makes it easy to analyse data in Amazon S3 buckets using standard SQL. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you…

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AWS Data pipeline architecture interview Q&As

What is a data pipeline in cloud? A data pipeline is a means of moving data from one place (E.g source systems) to another (E.g. target/destination). The data is transformed and optimized along the way so that it can be analyzed and used to develop business insights.… Read more ...



AWS Web Application Security Q&As

Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups & 15+ AWS Services overview interview Q&As. Q1. What is the purpose WAF in AWS? A1. The purpose of AWS WAF (i.e.… Read more ...



Multi-tenant Architecture Interview Q&As

Q1. What is a multi-tenant architecture? A1. A “tenant” in cloud computing is a single customer or to be more specific a group of users who share a common access with specific privileges to the software instance. Multi-tenancy is a software architecture common in cloud computing where a single instance…

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