Answer:
because a crash could cause you to lose both
Step-by-step explanation:
In the debate over cloud vs. local backup, there are some types of backup that are better in certain locations. If you're performing cloud backup, incremental backups are generally a better fit because they consume fewer resources. You might start out with a full backup in the cloud and then shift to incremental backups. Mirror backup, though, is typically more of an on-premises approach and often involves disks.
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Protecting data against loss, corruption, disasters (human-caused or natural) and other problems is one of the top priorities for IT organizations. In concept, the ideas are simple, although implementing an efficient and effective set of backup operations can be difficult.
The term backup has become synonymous with data protection over the past several decades and may be accomplished via several methods. Backup software applications reduce the complexity of performing backup and recovery operations. Backing up data is only one part of a disaster protection plan, and may not provide the level of data and disaster recovery capabilities desired without careful design and testing.
Backup applications have long offered several types of backup operations. The most common backup types are a full backup, incremental backup and differential backup. Other backup types include synthetic full backups