Photography Quiz 5

Name four (2) image/archive storage solutions, providing a key advantages and disadvantages for each.

Cloud Storage (Dropbox, Google Drive)
Photo Sharing Site (Flicker, iPhoto)
Personal Hard Drive
CD/DVD Optical Disc

Cloud Storage

Easy to use
Group access control
Might offer backup plans
Can be expensive
Back-up options vary

Photo Sharing Site

Easy to use
Many connect to services (prints, cards, books)
Free plans available
Might offer backup plans
Pay levels can be expensive

Personal Hard Drive

Easy to use
Many portable options
Lower cost for larger capacities
Performance levels vary
Plugs/cables can fail from frequent use

CD/DVD Optical Disc

Low cost
Easy to share dupes
CD/DVD drives becoming less common

What is a RAID and what is it designed to do?

Redundant array of independent disks
basically, a RAID is more than one drive functioning as a single entity.
Commonly used to protect data
One drive in the array can fail without losing data

What specifically is a RAID-5 configuration?

has four disks but all but one are required to operate.
The parity information is distributed among the drives.
When one drive fails - the one not in use can be calculated from the distributed parity = no data lost

What is a NAS?

Network Attached Storage
Basically, it's a hard drive with a built-in network server
Plugging a drive into a home router is basically the same

What are the four most common categories data content in a standard digital image file?

Image Pixel Data
Image Thumbnails
EXIF Metadata
IPTC Metadata

What is EXIF metadata? Explain and give two examples.

All technical details about camera records
Exposure settings
Date & Time info

What is IPTC metadata? Explain and give two examples.

data can be added/edited later