What is a significant disadvantage of tape as a method of data protection?

A significant disadvantage of tape as a method of data protection is that it requires frequent replacements. Tapes have a limited lifespan and can degrade over time, especially if they are not stored or handled properly. This degradation can lead to data loss or corruption, necessitating regular replacements to ensure that data remains accessible and secure.

In addition, the process of managing tapes—tracking their usage, storing them in a controlled environment, and routinely refreshing the media—can add to operational complexities. Frequent replacement is essential to maintain reliability and mitigate the risk of encountering unusable media when recovery is needed. This aspect underscores the importance of considering the longevity and preservation practices associated with tape storage when planning for data protection.

The other options do not accurately represent significant drawbacks of tape. While the high cost can apply to certain high-end tapes or systems, many tape solutions are relatively cost-effective compared to alternatives. Portability is not a major concern, as tapes can easily be transported if needed. Lastly, fast restore time is not a characteristic of tape storage, as restoring data from tape can often be slower compared to other data recovery methods, making the frequent replacement necessity even more critical.