220-801 · Question #117
A customer wants to be able to archive a large 15 to 20 GB project to optical media using a single disk. Which of the following should a technician recommend?
The correct answer is A. Blu-Ray writer. A Blu-Ray disc provides sufficient single-disc capacity (25 GB single layer) to archive a 15-20 GB project, which exceeds the capacity of all DVD and CD formats.
Question
Options
- ABlu-Ray writer
- BDVD-RW drive
- CDual Layer DVD burner
- DCD-ROM burner
How the community answered
(20 responses)- A85% (17)
- B5% (1)
- C10% (2)
Why each option
A Blu-Ray disc provides sufficient single-disc capacity (25 GB single layer) to archive a 15-20 GB project, which exceeds the capacity of all DVD and CD formats.
A standard single-layer Blu-Ray disc holds 25 GB of data, making it the only optical media format listed that can contain a 15-20 GB project on a single disc. Blu-Ray was designed specifically for high-capacity storage and HD video, using a 405nm blue-violet laser to achieve much higher data density than DVD or CD. A Blu-Ray writer is the appropriate recommendation for this use case.
A standard DVD-RW holds approximately 4.7 GB, which is far too small for a 15-20 GB project on a single disc.
A dual-layer DVD holds approximately 8.5 GB, which is still insufficient to store a 15-20 GB project on a single disc.
A CD-ROM holds approximately 700 MB, making it completely inadequate for archiving a 15-20 GB project even across many discs.
Concept tested: Optical media capacity comparison for archival
Source: https://www.comptia.org/certifications/a
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