computer storage quiz
Select two image compression formats.
PNG, JPEG
Select two characteristics of a DVD.
Uses pits and lands to store data, Holds approximately 4.5 GB of data
Select two audio file compression formats.
WAV, MP4
One emerging data storage challenge is the incredible amount of video being uploaded to ________.
YOUTUBE
The smallest unit of data storage is a ________.
a bit
CDs store data using ________.
a reflective coating that has pits and lands
Select the video file compression formats.
avi mp4 quicktime
Because it allows their files to be accessed from any device on the Internet, many users like to back up their files using ________ storage.
cloud
The fact that data on servers is nearly always backed up onto other servers gives ________ storage a major advantage over other data storage methods.
cloud
A disadvantage of cloud storage is that ________.
data is only available when you are online
Solid state drives store data using ________.
electronic circuits
A desktop computer's RAM is measured in ________ of data.
gigabytes
Storage capacity for laptop hard drives is typically described in terabytes or ________.
gigabytes
To allow hard disk drive platters to spin more smoothly and cooler, some manufacturers seal the platters in ________ instead of air.
helium
Select two optical drives.
-DVD drive blu ray player
Select three storage devices.
-Optical drives -USB drives -External hard drives
Match the image compression formats.
1. most popular lossy image compression format - JPEG/JPG2. most popular lossless image compression format - PNG3. legacy (outdated) lossless format - GIF
Blu-rays provide approximately ________ of storage space.
50 GB
CDs provide approximately ________ of data storage space.
700 mb
Though it could theoretically hold terabytes of data for thousands of years in a microscopic space, ________ storage, using genetic material, is a distant storage option.
DNA
Which two of the following are considered storage media?
DVDs, Blu ray disks
Select two disadvantages of using cloud storage.
Data is only available if you are online., Data stored on someone else's server can be accessed by anyone who has administrator privileges to the server.
Select two characteristics of solid state drive storage devices.
Durable, no moving mechanical parts, Uses electronic circuits to store data
Match the capacity with the storage device.
Laptop500 GB to 1TB- Tablet or Smartphone16-256 GB-DVD3-5 GB
The two most common audio file formats are WAV and ________.
MP4
Select three methods of using cloud storage.
Purchasing online storage space, saving a photo on Flickr, emailing a file yourself
Select two reasons to compress a file.
Reduce storage space requirements, Reduce bandwidth needed to transmit a file
Because they have no mechanically moving parts, ________ provide extremely fast, efficient storage.
SSDs
Select three characteristics of cloud storage.
Users can download files to other devices on the Internet, Files are backed-up (stored on multiple servers), Servers act like giant hard drives.
Select three characteristics of SSD storage.
Uses flash technology, Has no mechanically moving parts, Uses the same technology that is found in USB drives
Select two characteristics of a traditional hard drive.
Uses magnetically charged plates to store data, Often found in desktop computers
Select the characteristics of a Blu-ray disc.
holds approximately 50 GB of data uses pits and lands to store data
A refracted laser beam striking a photoreceptor from many different angles allows ________ storage to retain many bits of data in the same location.
holographic
Using refracted laser light to store data on a photoreceptive substrate is essentially how ________ storage works. Theoretically this could store gigabytes of data within a cubic millimeter.
holographic
A short (simple text) e-mail uses about one ________ of data.
kilobyte
Most desktop computers use ________ to store data.
magnetic hard drives
Because of its potential to diagnose health issues, one of the largest data requirements of the future will likely be ________.
mapping patients' genomes
A million bytes of data equals one ________.
megabyte
One thousand kilobytes (KB) equals one ________.
megabyte
An electronic element that stores data by changing its resistance based on the current that has passed through it (similar to RRAM) is called a(n) ________.
memristor
Server banks have capacities measured in ________.
petabytes
Blu-ray technology stores data using ________.
pits and lands that are read by a blue spectrum laser beam
Select three advantages of helium hard drives over traditional hard drives.
platters spin faster, platters stay cooler, More platters can be placed in the same amount of space.
With regard to digital storage, RAID stands for ________.
redundant array of independent discs
In general, the ________ the access time, the faster the hard drive.
shorter
A thousand gigabytes (GB) equals one ________.
terabyte
Which two could be used to store a single bit of data?
transistor, A hole in a punch card
