a. Why is magnetic tape desirable as a backup medium? b. Why is tape not desirable? c. Why is backup onto another hard drive attractive? d. Why is it not a complete backup solution? e. How can this...

a. Why is magnetic tape desirable as a backup medium? b. Why is tape not desirable? c. Why is backup onto another hard drive attractive? d. Why is it not a complete backup solution? e. How can this limitation be addressed? f. How much data can be stored on a dual-layer DVD? g. What is the advantage of burning backup data onto optical disks? h. Is storing backups on optical disks for several years likely to be safe?