AWS- INTERVIEW

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 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++   Data replication in AWS refers to the process of copying and synchronizing data across multiple locations or regions within the Amazon Web Services (AWS) cloud infrastructure. Replication is used to achieve various goals, such as improving data availability, disaster recovery, and data migration. There are different services and strategies in AWS that enable data replication: S3 Cross-Region Replication: Amazon S3 (Simple Storage Service) provides a feature called Cross-Region Replication (CRR), which allows you to automatically replicate objects from a source bucket in one AWS region to a destination bucket in another AWS region. This can be useful for improving data availability, compliance, and disaster recovery. S3 Same-Region Replication: S3 also supports Same-Region Replication (SRR), which replicates objects...

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 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ https://www.youtube.com/watch?v=ZET50M20hkU https://www.youtube.com/watch?v=K9AnJ9_ZAXE +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Amazon Managed Workflows for Apache Airflow  -- Airflow is commonly used for tasks such as running ETL jobs ETL(Extract - Transform - Load) -- Managing Machine Learning Pipelines -- Automating DevOps Tasks

  Experience on Cloud Networking, Akamai, VLan, Router, Switches, Gateways Preparing for an interview focused on C loud Networking, Akamai, VLANs, routers, switches, and gateways involves a combination of technical knowledge, practical experience, and effective communication. Here are some steps to help you prepare: Review Basics : Ensure you have a solid understanding of networking fundamentals, including TCP/IP, OSI model, subnetting, DNS, and HTTP/HTTPS protocols. Review how data flows through network layers. Cloud Networking : Understand cloud networking concepts and services offered by cloud providers like AWS, Azure, and Google Cloud. Familiarize yourself with VPCs, subnets, security groups, route tables, and direct connect options. Akamai : Research Akamai's content delivery network (CDN) solutions. Understand how Akamai accelerates content delivery, mitigates DDoS attacks, and improves website performance. VLANs (Virtual LANs) : Review VLAN concepts, including how they segm...

What are the different kinds of routing policies in Route53 ? In Amazon Route 53, routing policies determine how traffic is distributed across multiple resources, such as Amazon EC2 instances, Elastic Load Balancers (ELBs), and other endpoints. Each routing policy helps you achieve specific objectives based on your application's needs. Here's an overview of the routing policies available in Route 53: Simple Routing : This is the basic routing policy. You can associate one record with multiple IP addresses or DNS names. Route 53 responds to DNS queries with the value from one randomly selected resource record set. It's useful when you have multiple resources that serve the same purpose and you want to distribute traffic evenly. Weighted Routing : Weighted routing allows you to assign different weights to different resource record sets. Route 53 responds to DNS queries based on the assigned weights, allowing you to control the distribution of traffic among different resources...

 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ In Amazon Web Services (AWS), a "router" generally refers to a networking device that forwards data packets between different networks, such as between your Virtual Private Cloud (VPC) and the internet or between different VPCs. AWS provides several networking services that perform routing functions: Amazon VPC Route Table: An Amazon Virtual Private Cloud (VPC) is a logically isolated section of the AWS Cloud where you can launch resources. Each VPC has a default route table, and you can create custom route tables. Route tables define how network traffic is directed within the VPC and to destinations outside the VPC, such as the internet. Amazon Internet Gateway (IGW): An Internet Gateway allows resources within your VPC to access the internet, and it enables incoming internet traffic to reach resources within your VPC. It's...

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