Infrastructure as a Service (IaaS) Flashcards
What is the responsibility of the cloud vendor in Infrastructure as a Service (IaaS)?
In Infrastructure as a Service (IaaS), the cloud vendor is responsible for managing the physical datacenter, network/cabling, and physical servers.
What are the key features of IaaS?
IaaS offers virtual machines (servers) on a pay-as-you-go basis, providing managed IT infrastructure provisioned and managed over the internet. It serves as the fundamental building block of other cloud services, offering basic computing infrastructure with greater customization and control, where customers pay for what they allocate.
What is a Virtual Machine (VM)?
A Virtual Machine (VM) is a virtual version of a physical computer, including CPU/memory, disk, networking, operating system (OS), and network controls (firewall). Multiple VMs can be hosted on a single physical server using hypervisor software such as Hyper-V or VMware, with each VM being completely isolated from others.
What are the responsibilities of the customer in the IaaS model?
In the IaaS model, customers are responsible for managing information and data, devices (mobile, PCs), accounts and identities, identity and directory infrastructure, applications, network controls, and the operating system.
What are the capabilities of Virtual Machines (VMs)?
VMs have the same capabilities as physical computers, allowing users to run any computer software with maximum control and flexibility. They can be provisioned instantly to meet various computing needs.
What aspects of infrastructure are managed by the cloud provider in the IaaS model?
In the IaaS model, the cloud provider manages physical hosts, physical network infrastructure, and the physical datacenter.
How does the level of control affect customer responsibility in the IaaS model?
In the IaaS model, more control leads to more customer responsibility. Customers are responsible for tasks such as software/OS updates, user management, and network access (firewalls) when they opt for greater control over their infrastructure.
What is the essence of IaaS as summarized?
IaaS provides managed IT infrastructure, including virtual machines (VMs), which are virtual computers with all aspects except physical. Customers have full control over their infrastructure but also bear more responsibility for managing it.
