Virtualization and Cloud Computing Flashcards
They install directly onto the hardware of the host machine, serving as its underlying operating system. Examples include Oracle VM Server, VMWare ESXi, and Microsoft Hyper-V.
Bare-metal or native hypervisors
Software applications that run within the host machine’s primary operating system, just like any other program. Examples include Oracle VM VirtualBox, VMWare Workstation, and Windows Virtual PC.
Hosted hypervisors
Subscription-based access to applications or databases, sometimes known as “on-demand software”
SaaS: Software-as-a-service
Access to a computing platform or software environment the customer can use to develop and host web-based applications and can be used to develop applications for the customer to offer as their own Internet service, or it can be used for internal applications.
PaaS: Platform-as-a-service
Access to computing and network resources themselves, such as storage devices, processing, entire computers, and even whole networks. The customer can install and manage operating systems, file systems, etc.
IaaS: Infrastructure-as-a-service
Which is a cloud computing feature through which users can access additional storage, processing, and capabilities automatically, without requiring intervention from the service provider?
On-demand self-service
Which cloud computing method is a combination of two or more clouds that remain distinct but are bound together, offering the benefits of multiple deployment models?
Hybrid
Software-as-a-service (SaaS) is a subscription-based access to applications or databases, sometimes known as on-demand software. True or False?
True
The provider’s resources are shared between multiple customers in a multi-tenant fashion.
Resource pooling
Customers must be able to access computing resources unilaterally and automatically, without human interaction with the service provider
On-demand self-service
Resources are available in a standard format that allows and promotes use from a wide variety of client platforms.
Broad network access
Resources are metered so that usage can be monitored and transparently reported and the customer can be billed appropriately.
Measured service
Resources can be quickly, even automatically, allocated or released to meet demand
Rapid elasticity
Which of the following allows you to allocate network-based disk arrays as though they were local storage?
Storage area network (SAN)
Which is the ability to quickly increase or decrease the amount of resources required from a cloud service provider?
Rapid elasticity
Which cloud service model delivers computer infrastructure on an outsourced basis to support enterprise operations?
Infrastructure as a service (IaaS)
What are some examples of hosted hypervisors?
Examples include Oracle VM VirtualBox, VMWare Workstation, and Windows Virtual PC.
What is a solution to handle data-at-rest encryption requirements for a database.
Create a virtual encrypted disk, add it to the virtual server, and have the database write to it.
Virtualization technology for providing and managing virtual desktops
Virtual desktop infrastructure (VDI)
A cloud computing feature through which users can request additional space and the provider allocates additional resources seamlessly to the end user. This can often be done dynamically without any need for the user to contact the hosting provider.
Rapid Elasticity
What is the purpose of IPsec?
Encrypts data as it transmits across the network.
What is the purpose of Firewalls?
Prevent unauthorized access to a physical or virtual computer.
