Scenarios: Workstation Backup and Recovery

Rafael works as an IT support technician at a regional insurance company. The company runs full backups every Sunday night and incremental backups every weekday night. On Thursday morning, the file server crashes and needs to be restored from backup.

To fully restore the server to Wednesday night's state, which backup sets does Rafael need?

• Sunday's full backup and Tuesday's incremental backup only

• Sunday's full backup and Monday's, Tuesday's, and Wednesday's incremental backups

• Sunday's full backup and Wednesday's incremental backup only

• Monday's incremental backup and Wednesday's incremental backup only

Compared to a differential backup strategy, why does the incremental strategy the company uses require more restore time?

• Differential backups run faster and overwrite previous backups automatically

• Each incremental backup only captures changes since the last backup, so multiple sets must be applied in order

• Incremental backups are larger than differential backups, so they take longer to copy

• Incremental backups do not include a full backup, so all data must be rebuilt from scratch

What is one risk of never testing the company's backups before a real disaster like this one occurs?

Sofia is the IT coordinator at a private high school. She wants to set up a backup plan that follows the 3-2-1 rule. Right now, all backups are stored on a single external hard drive kept in the server room.

Which setup correctly follows the 3-2-1 backup rule?

• Three copies of data, stored on two different media types, with one copy kept off site

• Two copies of data, stored on two different media types, with one copy kept off site

• Three copies of data, stored on three different servers, all located in the same building

• Three copies of data, all stored on the same server, updated once per day

Sofia decides to use the grandfather-father-son (GFS) rotation scheme. In GFS, what does the "grandfather" backup typically represent?

• An incremental backup run every weeknight

• A daily backup deleted after one week

• A weekly backup stored on a second hard drive

• A monthly backup kept for long-term retention

Name one specific change Sofia should make to bring the school's current backup setup closer to following the 3-2-1 rule, and explain why that change helps.