SK0-004 · Question #275
Which of the following internal storage devices has the GREATEST storage capacity and is WORM media?
The correct answer is B. CD-R. CD-R is the only Write Once Read Many (WORM) media in the list, meaning data can be written once but never erased or overwritten. The other options are either rewritable or not optical disc formats.
Question
Which of the following internal storage devices has the GREATEST storage capacity and is WORM media?
Options
- ACD-RW
- BCD-R
- CDVD-RW
- DFlash
How the community answered
(18 responses)- A6% (1)
- B89% (16)
- D6% (1)
Why each option
CD-R is the only Write Once Read Many (WORM) media in the list, meaning data can be written once but never erased or overwritten. The other options are either rewritable or not optical disc formats.
CD-RW is rewritable media, meaning data can be erased and rewritten, which disqualifies it as WORM.
CD-R discs use a dye layer that is permanently altered by the write laser, making them WORM media - data written cannot be erased or rewritten. Among the listed options, CD-R is the only one that satisfies the WORM requirement, as all others support rewriting. Although CD-R capacity (~700 MB) is lower than DVD formats, DVD-RW is rewritable and therefore not WORM.
DVD-RW supports multiple write and erase cycles, making it rewritable and not WORM media.
Flash storage (such as USB drives or SSDs) is rewritable and electrically erasable, so it does not qualify as WORM media.
Concept tested: Identifying WORM optical storage media types
Source: https://learn.microsoft.com/en-us/windows-hardware/drivers/storage/cd-rom-exclusive-access-mode
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