Flashcards
Untitled_5
Flashcards do conjunto (4)
- 1Cloud Computing AdvantagesCloud providers typically provide software which can be used by many different organisations; so the organisations benefit by avoiding the purchase of the software and the purchase of the hardware to operate it.
Data can be obtained by the staff who are teleworking wherever they have an internet account to log on.
Scalability is useful feature for a web server if the website is hosted by the cloud and the site becomes popular, the cloud provider will automatically increase the server/transaction capacity.
The use of equipment is rented from the cloud which initially cheaper than purchasing equipment for a new project.
Special hardware environments are not required and organisations can leave the cloud companies to organise data backup and security, including disaster recovery. - 2Cloud Computing DisadvantagesThe web service provided may be unreliable.
There is a concern about how secure data is when it is stored globally.
The organisation may become dependent on proprietary cloud applications and services so that it is difficult to opt out of the system.
One cloud company may not be able to provide all the software packages provided, meaning that multiple cloud companies are needed.
Legal issues (Data Protection ACT/ DPA) may arise if the cloud operates outside of the European union. - 3Thin Client Computing AdvantagesThe installation, updating or removal of software only needs to be added at the server which saves time and creates consistent system.
Backing up and recovery are fast as it can all take place at the server and there is no need for any user involvement.
It makes use of low specification computers as thin clients; they are easy to maintain and set up.
There is less maintenance on a thin client computer to carry out as hardware and software upgrades are not necessary; this saves time and the cost of upgrading PCs.
Security is improved as all the data can be kept away from the network in a secure location. - 4Thin Client Computing DisadvantagesThe system is dependent upon the server so, if it falls, the whole system fails; this can be protected against by using a mirrored server that can automatically take over in the event of a failure.
There is a limit to the number of thin clients that can be run from a server; this is dependent upon the specification of the server.
Users of thin client computers may find the operation of the software slower when the server is heavily loaded.
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- FlashCards sobre Untitled_5, criado por renzo.v em 14-05-2013.
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- renzo.v
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