220-1101 Question 256
Single answerOptical drivesA technician is upgrading a desktop workstation used to archive large video projects to optical media. The user needs to write 50 GB of data to a single disc and also wants the ability to read standard DVDs from clients. Which optical drive should the technician install to BEST meet these requirements?
- A
DVD-RW drive
- B
Blu-ray reader drive
- C
Blu-ray writer drive
- D
CD-RW drive
Show answer and explanation
Correct answer: C
Explanation
The key requirement is writing 50 GB to a single optical disc. DVD and CD technologies do not provide that capacity on one disc, so the technician needs a Blu-ray writer. In real-world PC support, Blu-ray writer drives commonly support reading DVDs and CDs as part of backward compatibility, making them suitable for mixed-media environments. This aligns with common optical media specifications used in A+ Core 1 objectives: CDs are measured in hundreds of MB, DVDs in GB, and Blu-ray discs in higher capacities such as 25 GB and 50 GB. Best practice is to match the drive not only to the media type but also to whether the task requires reading, writing, or rewriting.
- A. Incorrect.
A DVD-RW drive can read and write DVDs, but standard single-layer and dual-layer DVD formats do not support 50 GB on a single disc. This option fails the storage-capacity requirement even though it would read client DVDs.
- B. Incorrect.
A Blu-ray reader drive can read Blu-ray discs and typically read DVDs as well, but it cannot write data to Blu-ray media. Since the user needs to archive 50 GB to a single optical disc, a read-only drive does not meet the requirement.
- C. Correct.
A Blu-ray writer drive is the best choice because Blu-ray media supports much higher capacities than DVD, including 25 GB single-layer and 50 GB dual-layer discs. Blu-ray drives are also backward-compatible with DVD reading in typical PC implementations, so this satisfies both the 50 GB write requirement and the need to read standard DVDs.
- D. Incorrect.
A CD-RW drive is limited to CDs, which hold far less data than DVDs or Blu-ray discs. It cannot store 50 GB on a single disc and would not be appropriate for reading standard DVDs.