Unit Review: Operational Procedures (Set 1)

A full backup copies all selected data regardless of changes. How does this affect storage compared to incremental backups?

• Full backups use less storage because they skip unchanged files

• Full backups use the same storage as incremental backups

• Full backups use more storage because they copy everything each time

• Full backups compress data automatically, reducing storage needs

A company runs a full backup every Sunday and incremental backups Monday through Saturday. If data is lost on Friday, which backups are needed to restore it?

• Friday incremental backup only

• Sunday full backup and Thursday incremental only

• Sunday full backup plus Monday, Tuesday, Wednesday, and Thursday incrementals

• Sunday full backup and Friday incremental only

Which backup type copies only the files that have changed since the last full backup, regardless of any incrementals run in between?

• Mirror backup

• Synthetic backup

• Differential backup

• Incremental backup

A technician needs the fastest possible restore time after a failure. Which backup strategy best supports that goal?

• Incremental backups only, taken every hour

• Full backup combined with differential backups

• Differential backups only, taken daily

• Full backup combined with incremental backups

Which TWO statements correctly describe the tradeoffs of incremental backups compared to full backups?

• Incremental backups take less time to create than full backups

• Incremental backups eliminate the need for a full backup entirely

• Incremental backups require more backup sets to perform a full restore

• Incremental backups always store more data than full backups

What is a synthetic backup?

• A backup that compresses all files before writing them to tape

• A partial backup that only stores file metadata and folder structure

• A backup that runs automatically without administrator approval

• A full backup assembled from a previous full and incremental backups without re-reading source data

A backup has never been tested. Why is this backup considered unreliable?

• Corruption or errors may exist that would only be discovered during a restore attempt

• Untested backups expire automatically after 30 days

• Backup software requires a test run before data is actually written

• Untested backups are stored in a temporary cache and may be overwritten

How often should a company test its backup and recovery process?

• Regularly, on a scheduled basis, to confirm restores work before a disaster occurs

• Never, because testing a backup risks corrupting the backup data

• Only once, at the time the backup system is first installed

• Only after a system failure to verify the backup captured the lost data

A restore test reveals that last month's backup file cannot be opened. What does this situation demonstrate about backup testing?

• Full backups are more reliable than incremental backups for long-term storage

• Backups must be tested regularly because unverified backups may be unusable when needed

• Off-site backups are always more reliable than on-site backups

• Backup software should be replaced whenever a single restore fails

Select all that apply: Which practices are part of a thorough backup testing program?

• Documenting the results of each test restore

• Disabling automatic backups while testing to prevent conflicts

• Testing only the most recent backup and ignoring older sets

• Performing test restores to verify data can actually be recovered