Backups — Quiz

Question 1 of 6

An organization stores backup copies at the same physical location as its production systems. Which statement best describes this backup type and its primary advantage?

Off-site backup — data is protected from site-level disasters On-site backup — data is immediately available without requiring a WAN link Replication — data is continuously synchronized to a remote location Snapshot — an instant point-in-time copy of the entire system

Question 2 of 6

A backup tape is stolen from an employee's car while being transported to an off-site storage facility. Which security measure would have ensured the stolen data remained completely unreadable to the thief?

Increasing backup frequency to hourly intervals Using an on-site backup instead of transporting media Encrypting all backup data with a separately stored recovery key Running recovery testing on the tape before transport

Question 3 of 6

After the initial full snapshot of a virtual machine (Monday, 100 GB), subsequent daily snapshots contain only the data that changed since the previous snapshot. What best describes this backup behavior?

Incremental snapshot design — only changes since the last snapshot are stored Full backup design — the entire system state is captured in every snapshot Replication — data is synchronized in near-real-time to remote locations Journaling — changes are written to a log before being committed to storage

Question 4 of 6

An organization discovers during an actual disaster that their database backup cannot be successfully restored — the restore process fails due to corruption in the backup files. What practice should have been implemented to detect this problem before the disaster?

Backup encryption — protecting the backup files from unauthorized access Increasing backup frequency — creating backups more often Replication — maintaining synchronized copies at multiple sites Recovery testing — periodically restoring from backup to verify data integrity and application functionality

Question 5 of 6

Ransomware begins encrypting a file server at 9:00 AM. An organization that relies exclusively on replication for data protection finds that by 9:04 AM, its replicated site also contains only encrypted files. Why did replication fail to protect against this attack?

Replication is only effective for cloud-based data, not on-premises file servers Replication continuously propagates all changes — including ransomware encryption — overwriting the good data at the destination Replication does not protect against network-based attacks of any kind Replication requires a WAN link and was not fast enough to keep up with the encryption speed

Question 6 of 6

A database server loses power while writing a transaction to disk. When power is restored, the database contains partially written, corrupted data. Which file system feature would have prevented this corruption by recording intended changes before writing them permanently to storage?

Snapshot — capturing the system state before each transaction Replication — maintaining a synchronized copy at a remote site Journaling — writing intended changes to a log before committing them to storage Backup encryption — protecting data from unauthorized access during writes

Matching

1. A file server's data is continuously mirrored to a secondary data center; any file saved or modified at the primary site appears at the remote site within seconds.

2. A cloud engineer clicks one button to capture the entire current state of a virtual machine before deploying a major OS update, enabling a full system rollback if the update causes problems.

3. A database file system records all intended storage operations to a sequential log before committing them permanently to disk, allowing interrupted write operations to be replayed automatically at startup.

4. A company stores backup copies on a NAS device in the same server room as the production systems, allowing same-day file restoration with no WAN dependency and no additional storage facility fees.

1. 2. 3. 4.

A. On-site backup

B. Snapshot

C. Replication

D. Journaling