Accounting Information Systems (13th Edition)
Accounting Information Systems (13th Edition)
13th Edition
ISBN: 9780133428537
Author: Marshall B. Romney, Paul J. Steinbart
Publisher: PEARSON
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Chapter 10, Problem 6P

The ABC Company is considering the following options for its backup plan:

  1. 1. Daily full backups:
    • Time to perform backup = 60 minutes
    • Size of backup = 50 GB
    • Time to restore from backup = 30 minutes
  2. 2. Weekly full backups plus daily incremental backup:
    • Same requirements as option 1 to do a full backup on Friday, plus
    • Time to perform daily backup = 10 minutes
    • Size of daily backup = 10 GB
    • Time to restore each daily backup file = 5 minutes
  3. 3. Weekly full backups plus daily differential backup:
    • Same requirements as option 1 to do a full backup on Friday, plus
    • Time to perform daily backup = 10 minutes first day, growing by 5 minutes each day thereafter’
    • Size of daily backup = 10 GB first day, growing by 10 GB each day
    • Time to restore differential backup file = 5 minutes first day, increasing by 2 minutes each subsequent day

Which approach would you recommend? Why?

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