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Information Technology > 1.2. Cloud computing > Flashcards

1.2. Cloud computing Flashcards

1
Q

cloud computing

A
  • use of
    > resources/software
    > as services
    > Internet/online - remotely
    > shared
    > subscription fee
    > scalable
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2
Q

how are resources shared in cloud computing

A

like how processing power shared between users

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3
Q

what does ‘in the cloud’ mean

A

data use on the Internet

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4
Q

advantages of cloud computing affects limitations on access to data and processing power

A
  • not limited to
    > location
    > device (any OS)
    > size > scalable
  • limited to
    > Internet connection > fast & reliable
    > fee
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5
Q

examples of cloud computing

A
  • online storage
    > file syncing
    > backup
  • media repositories
  • cloud applications
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6
Q

examples of online storage - file syncing

A

Dropbox
iCloud/OneDrive/Google Drive
SugarSync
CX

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7
Q

what does online storage - file syncing do?

A

stores files on Internet
like virtual hard drive
access, add, delete

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8
Q

how does online storage - file syncing work?

A
  • indicate files on comp synced to Internet
    > web interface on browser
    > app
    + integrates OS file system
    + automatically synced folder
    = security risk on public tech
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9
Q

what files would you want to store in online storage - file syncing

A
  • multi-device access
  • share
  • copy (like backup, not as good)
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10
Q

what did online storage - file syncing replace?

A
  • e-mailing files
  • USB
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11
Q

charges for online storage - file syncing

A
  • usually free version
    > limited storage
  • monthly subscription
    > more storage
    > charged/GB
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12
Q

what is online/cloud storage - backup?

A

backup data
access in emergency

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13
Q

how do cloud backup services work?

A
  • automatic schedule
    1. backup drive/specified folders
    2. incremental duplication of changed files
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14
Q

how does cloud backup differ to cloud syncing?

A

more data
less data traffic

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15
Q

what does cloud backup enable access to?

A
  • history of file versions
  • files deleted from computer
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16
Q

special feature of online backup services

A

most encrypt data > only you decrypt/access > increased security

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17
Q

how is cloud backup better than cloud syncing in terms of backup power

A
  • incremental
  • secure
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18
Q

examples of online backup programs

A

Carbonite
Acronis
CrashPlan

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19
Q

charge of online backup

A

sub fee / user or computer

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20
Q

what is a (media) repository?

A

safe online storage location
- buy cloud access to media
> not download/carry

21
Q

examples of media repositories

A

iTunes
Amazon

22
Q

advantages of media repository

A
  • any device
    > any storage space
  • all media
23
Q

are media repositories popular in south africa? why/why not?

A

no - Internet connectivity more expensive and slower

24
Q

difference between media repository and backup/syncing?

A
  • no individualized file copies
    > control access to single file based on libraries of users
25
Q

charge of media repositories

A
  • usually limited storage free
  • yearly fee for full access
26
Q

what does media repositories work best with and why?

A

low-bandwidth media > music
= not movies > high-bandwidth

27
Q

what are cloud applications?

A
  • software
  • most/all processing cloud-based
    > 1+ Internet servers
28
Q

examples of cloud applications

A

Gmail
Facebook

29
Q

how can cloud applications present on computer

A
  • app interface on device
  • page on web browser
    > app interface in cloud too
30
Q

what are specific types of cloud applications

A
  • Office software
  • consumer cloud apps
  • general business apps
31
Q

examples of cloud application Office software

A

Google Docs
Office 365
iWork
> last two have local non-cloud-based apps

32
Q

charges of specific cloud Office software

A

Google Docs - free
iWork - free w Apple ID
Office 365 - sub fee

33
Q

what are consumer cloud applications

A
  • anyone
    < most cloud business/service
  • high processing power
34
Q

examples of consumer cloud applications

A

123D Catch (Autodesk)
Microsoft Photosynth

35
Q

why are consumer cloud applications used?

A

online server processing higher than local device

36
Q

what is 123D Catch

A

photo of object > digital 3D object
> use in 3D software

37
Q

what is photosynth

A

many diff photos (angle, zoom) of locaysh stitched
> pan-able, zoomable mega-panorama
> 3D view

38
Q

charges of 123D Catch and Photosynth and how run and why better

A

free
multiple servers
much faster than alone

39
Q

what are general business cloud apps used for

A
  • custom for specific needs
  • alternatives to non-cloud
40
Q

examples of types of cloud business software

A

CRM (Customer Relationship Management)
HR (Human relations > employee management)
accounting software

41
Q

specific example of cloud business software

A

app suite at Salesforce.com

42
Q

what does SaaS stand for

A

Software as a Service

43
Q

what is SaaS

A
  • business model > how pay
    > ‘renting’ of software
    > no eternal license
44
Q

how did software purchasing work before SaaS

A
  • not own
  • once-off for right/license of use
    > specific version, not future upgrades
45
Q

how is SaaS better than buying?

A
  • latest, up-to-date version
  • long as paying monthly sub fee
46
Q

forms of SaaS

A

Cloud-based apps
Downloadable, locally installed apps
Integrated products

47
Q

how do cloud-based apps reflect when they are SaaS

A
  • software runs on remote servers
  • regular fee to access
48
Q

examples of SaaS cloud-based apps

A

business apps > Salesforce
almost every (non-free) cloud-based app

49
Q
A

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