4.0—PROACTIVE Maintenance

This job dimension covers proactive maintenance, which can be summed up as everything you do to a network to ensure the system will continue to perform in the future. This job dimension comprises approximately 9% of the exam questions. The main points follow:

  • A full backup copies all the files on the network server to a backup system (usually a magnetic tape drive).

  • An incremental backup copies all the files on the network server that have changed or been created since the last backup to a backup device.

  • An differential backup copies all the files on the network server that have changed or been created since the last full backup to a backup device.

  • Table 13 summarizes the differences among these three backup types.

Table ...

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