Information Technology

Test 2 short answer

Practice questions from previous HSC Exam Papers

Assume you have backup software, a tape drive and a number of tapes that are capable of storing a maximum of 50 gigabytes each. Examine the scenarios below.
1. Scenario One
  A file server has 40 gigabytes of data files. Each day 30 gigabytes of these data files are changed. A full backup of data files is performed each night.
  Explain why the backup method described is appropriate for this scenario.
2. Scenario Two
  A file server has 100 gigabytes of data files. Each day 10 gigabytes of these data files are changed. Since the last full backup a partial differential backup of data files has been created each night.
  
  Explain why the backup method described is appropriate for this scenario.
A file server has 200 gigabytes of data files. Each day 100 gigabytes of these data files are changed. A full backup is performed every Friday night and partial incremental backups are performed on Monday, Tuesday, Wednesday and Thursday nights.
1. What is the minimum number of tapes required to store one week of backup data? (Show all working.)
2. There was a hard drive failure 15 minutes before business commenced on Wednesday.
  Propose a sequence of steps to restore the lost data onto a newly formatted hard drive.