MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

SQL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
With a mirrored backup (only available in Enterprise edition), the same backup data is written to each backup device concurrently. This option provides for redundancy of the physical backup device. Only one of the devices needs to be present during a restore process.
A
True
B
Flase
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Differential Backup This type of backup involves backing up data that was created or changed since the last full backup. To put it simply, a full backup is done initially, and then subsequent backups are run to include all the changes made to the files and folders.

Detailed explanation-2: -Incremental backups Because an incremental backup will only copy data since the last backup of any type, an organization may run it as often as desired, with only the most recent changes stored. The benefit of an incremental backup is that it copies a smaller amount of data than a full.

Detailed explanation-3: -A full image backup, or mirror backup, is an exact replica of everything on your computer’s hard drive, from the operating system, boot information, apps, and hidden files to your preferences and settings. Imaging software not only captures individual files, but everything you need to get your system running again.

Detailed explanation-4: -Incremental Backups During an incremental backup operation, all specified files have their archive bit examined. If the bit is set, the file is backed up, and then the bit is cleared. This backup type is used to back up data that has changed or been created since the last full (normal) or incremental backup.

There is 1 question to complete.