Cloud & Virtualization Flashcards
(Virtualization) The traditional way a business operates is by using different m_______ or s______ to run different services, according to what the business needs.
machines, servers
(Virtualization) For example, a business would use a server to run their database. Another server would be used to run their website. Another server would be used to run their email service, and so on.
-And these servers could also be running different _________ ________. One could be running Linux, the other could be running Solaris, and the other one could be running Windows.
operating, systems
(Virtualization) running a server environment like this can be _________. Not only do you have to pay for the ______ ________, but you have to pay for the floor space, the management, and the maintenance of the equipment.
expensive, server, hardware
(Virtualization) Virtualization is basically consolidating all of these physical servers with their different operating systems and applications and running them on just ___ ________ ______ in a virtual environment.
one, physical, server
(Virtualization) so in virtualization, this ___ ______ is running all of the different applications like databases, web services, and email, all running side by side on one machine. And not only the applications, but also the different _________ _______ side by side.
one, server, operating, systems
(Virtualization) So users that interact with a virtual server would interact the same way as if they were still on ________ ________ _______. They won’t be able to tell the difference.
multiple, physical, servers
(Virtual Switch) virtualization saves money. Not only does it save money on hardware, but also on _______ _____, ___________, and __________.
storage, space, maintenance, management
(Virtual Switch) In addition to virtual servers, there are other virtual devices such as virtual ________.
switches
(Virtual Switch) A virtual switch is not a physical switch, but it’s a software switch that’s created in a _______ ___________.
virtual, environment
(Virtual Switch) So for example, if you wanted your virtual database server to be able to network and communicate to your virtual web server, you can just add a _______ switch to do that. And once the ______ is added, then those two virtual servers can now ___________ with each other.
virtual, switch, communicate
(Virtual Router) a virtual router performs just like a ________ ______.
physical, router
(Virtual Router) It can route data packets between your _______ _______ and the ________ according to what the business needs are.
virtual, servers, internet
(Virtual Router) there’s a virtual firewall, which is another virtual device that can filter _______ _______ and monitor that traffic for your virtual servers, just like a physical firewall does.
network, traffic
(Cloud computing) the term cloud computing refers to data and applications being stored and run on ______ _______ rather than being on your _____ ________.
remote, servers, local, computer
(Cloud computing) this data and any applications that are on these remote servers are accessed and run via the ________. So the workload is no longer on your local computer; it’s on the _____.
internet, cloud
(Cloud computing) But email is just one example of _____ _________. There are also other services such as productivity software, web servers, databases, and so on.
cloud, computing
(Cloud computing) Now, there are three different types of cloud computing (?)
- These three vary in control and flexibility, so it’s up to the user to decide what suits their needs.
- Infrastructure as a Service
- Platform as a Service
- Software as a Service
(IaaS) The first one is ______________ ___ __ _______ (IaaS), and this type is basically when you’re going to let the third-party vendor manage a portion of your business, which is going to be the hardware portion.
Infrastructure, as, a, Service
(IaaS) The third-party vendor will manage the servers, storage, virtualization, and the networking portion. You, on the other hand, will still have control over the ________ _______, such as the applications, data, operating system, middleware, and runtime. A good example of this would be a web service company like ______ ___ ________.
software, portion, amazon, web, services
(PaaS) PaaS allows the third party to manage a portion of your business, but the third party has ____ _______.
more, control
(PaaS) In a PaaS, the third-party vendor not only manages the ________, such as servers, storage, and networking, but they also manage the _________ ______, middleware, and runtime.
You are only responsible for the ___________ and the data.
hardware, operating, system, applications
(PaaS) A good example of PaaS would be _________ _____, which is a cloud computing platform from Microsoft.
Microsoft, Azure
(SaaS) ________ ___
__ _______ (SaaS), and this type is probably the most common cloud service so far.
Software, as, a, service
(SaaS) All the applications are hosted by a _____-_____ ______ on the internet.
third, party, vendor
(SaaS) There is no software to install on your computer, no hardware to manage.
-You just simply access and run the application from your _________ when you connect to the _____ service via the ________.
computer, cloud, internet
(SaaS) So the third-party vendor manages all the h_______, s_______, networking, operating system, and storage.
hardware, software
(SaaS) Google Apps is a great example of ____.
SaaS
(NAS) If you wanted to store data in a centralized location where it can be accessed from all of your other devices on your network, you can do this by using a _______ ________ _______ (NAS) device.
Network, Attached, Storage
(NAS) A _______ ________ _______ device is a storage device that is used strictly for storing data, and it doesn’t do anything else besides storing data.
Network, Attached, Storage
(NAS) Typically, an NAS will have multiple hard drives in a ____ configuration for redundancy, and a _______ _________ ____ that directly attaches to a switch or router so that the data can be accessed over a network.
RAID, network, interface, card
(NAS) once it’s on the network, it can be accessed from other devices such as desktops, laptops, and tablets through a ______ ______.
shared, folder
(SAN) a _______ ____ _______ (SAN) is a special high-speed network that stores and provides access to large amounts of ____.
Storage, Area, Network, data
(SAN) This network consists of multiple ____ ______ and servers that access this data as if it were a local hard drive because that’s how operating systems recognize a ___.
disk, arrays, SAN
(SAN) It’s recognized as a _______ ________ ____ _____ rather than a shared drive like on an NAS.
locally, attached, hard, drive
(SAN) SANs are independent of _______. They are not limited or owned by a single server. In fact, ________ servers are attached to a SAN, so all the data is available to all the servers ______________.
servers, multiple, simultaneously
(SAN) SANs are also easily __________, and they are very redundant because all the data is shared among _______ ____ ______. So if a disk array fails, then the data is not lost because the data will be stored in multiple areas.
expandable, several, disk, arrays
(SAN) a SAN is a high-speed network, and that’s because in a SAN, all the devices are interconnected using _____ _______, which is a standard for SANs that has network speeds starting at over _,____ megabits per second.
fiber channel, 2,000 mbps
(SAN) as an alternative to using Fiber Channel, there is _____.
iSCSI
(SAN) iSCSI stands for ________ _____ ________ ______ Interface, which is a data storage protocol that transports SCSI requests over standard TCP/IP.
Internet, small, computer, system
