Storage

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CompTIA
Shelby Hartsell
Flashcards by Shelby Hartsell, updated more than 1 year ago
Shelby Hartsell
Created by Shelby Hartsell over 7 years ago
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Resource summary

Question Answer
What is a hard drive? nonvolatile devices that store data
HDD Hard Disk Drive (magnetic-based)
SSD Solid-state drive (flash based)
SATA Serial ATA uses a 15 pin power connection and 7 pin data connection
What does RAID stand for? Redundant Array of Independent Disks
RAID 0 Striping
RAID 1 mirroring
RAID 5 striping with parity
RAID 10 mirrored sets in a striped set
RAID 0 not fault tolerant
What is disk duplexing? when RAID 1 uses two disk controllers
What uses removable media to store and retrieve data? Optical Disc
How much can a CD-ROM hold? 700 MB
How fast can a CD-ROM read and write? 7.8Mb/s
How fast can a CD-ROM rewrite? 4.8Mb/s
How much can a DVD-ROM store? ranging from 4.7 GB (DVD-5) to 17 GB (DVD-18 dual-sided and dual-layered
What recording technologies are included in a DVD-ROM? DVD R+, DVD-R, DVD+RW and DVD-RW
What are Blu-ray discs used for? HD and games
How much capacity does Blu-ray have? 25 to 128 GB
What is the write speed of Blu-ray? 1x to 16x (36 Mb/s to 576 Mb/s)
What does Solid-state media include solid-state hard drives (SSDs), USB flash drives, CompactFlash and Secure Digital (SD) cards
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