AWS
What is Cloud Computing?
Cloud computing is a service that enables organizations to consume computing, storage, and networking services on demand and pay only for utilization.
What are the key advantages of Cloud Computing?
There are many, but one of the biggest ones is that it adds agility to the business. It makes it easier to scale up on demand, and because it has less commitment than traditional IT it makes it easier to scale down as well, making Cloud Computing more flexible.
What are the main types of Cloud Computing?
- Infrastructure as a Service (IaaS)
- Platform as a Service (PaaS)
- Software as a Service (SaaS)
What are the 3 basic types of AWS products?
- Computing
- Storage
- Networking
What is Amazon EC2?
Elastic Cloud Compute provides scalable virtual servers called instances in the cloud and can be used for the common workloads of servers.
What are the different types of virtualization in AWS and what are the differences between them?
Hardware Virtual Machine (HVM): Fully virtualized hardware, where all virtual machines act separately. VMs boot from the MBR on the root block device Paravirtualization (PV): GRUB is used as the bootloader that boots the VMs.
What is Amazon S3?
Simple Storage Service is used to provide scalable, durable, and highly available storage.
What is a VPC and what is its purpose?
A Virtual Private Network provides a virtual network that behaves similarly to a traditional data center network.
What is a NAT Gateway?
A NAT gateway is a Network Address Translation service. It can be used so instances on a private subnet can communicate outside the VPC but services outside cannot connect to the instances.
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