In the event of a server hardware failure, what ensures that application data can continue to be accessed?

In the event of a server hardware failure, what ensures that application data can continue to be accessed?

• A. Local backups
• B. Data replication
• C. RAID configurations
• D. Cloud storage

Answer: (C)

RAID (Redundant Array of Independent Disks) configurations are specifically designed to enhance data availability and reliability in the event of a hardware failure. By utilizing multiple disks to store data, RAID can provide redundancy, which means that if one disk fails, the data can still be accessed from the remaining disks within the array. Various RAID levels offer different balances of redundancy, performance, and storage capacity; for example, RAID 1 mirrors data between two disks, while RAID 5 distributes data and parity across three or more disks. This redundancy ensures that applications can continue to function with minimal disruption even if a hardware component, such as a hard drive, experiences failure. In contrast, local backups involve creating copies of data that are stored separately from the primary data source. While helpful for disaster recovery, local backups do not provide immediate access to application data if the server fails. Data replication, which involves duplicating data across different locations or systems, can be effective but may require additional configuration and slightly longer recovery times than what RAID systems provide. Cloud storage offers off-site data accessibility, but again, it usually involves a re-establishment of connectivity to access the data, which may not serve the immediate need for continuous application operation upon hardware failure. Thus, RAID configurations

RAID (Redundant Array of Independent Disks) configurations are specifically designed to enhance data availability and reliability in the event of a hardware failure. By utilizing multiple disks to store data, RAID can provide redundancy, which means that if one disk fails, the data can still be accessed from the remaining disks within the array. Various RAID levels offer different balances of redundancy, performance, and storage capacity; for example, RAID 1 mirrors data between two disks, while RAID 5 distributes data and parity across three or more disks. This redundancy ensures that applications can continue to function with minimal disruption even if a hardware component, such as a hard drive, experiences failure.

In contrast, local backups involve creating copies of data that are stored separately from the primary data source. While helpful for disaster recovery, local backups do not provide immediate access to application data if the server fails. Data replication, which involves duplicating data across different locations or systems, can be effective but may require additional configuration and slightly longer recovery times than what RAID systems provide. Cloud storage offers off-site data accessibility, but again, it usually involves a re-establishment of connectivity to access the data, which may not serve the immediate need for continuous application operation upon hardware failure. Thus, RAID configurations