Joe, a backup administrator, wants to implement a solution that will reduce the restoration time of physical servers. Which of the following is the BEST method for Joe to use?
C. Keyword is "restoration"
A full backup takes longer and requires more space than other types of backups but the process of restoring lost data from backup is much faster.
A full backup is the easiest and quickest to restore.
Gibson, Darril. CompTIA Security+ Get Certified Get Ahead: SY0-501 Study Guide (p. 402). Kindle Edition.
Answebis Full back up why?
Full back up require much time and space but restore data fast
Incremental is fastest to take back up because it only back up new updates ,but slow in restoration
Differential back up require more space and time and it is the extremely slow to restore a bit of information
C. Because in the event of a complete system failure you need to restore the last FULL backup first, then restore either the differential or incremental.
Answer=D. According to Kaplan Learn https://www.kaplanlearn.com/education/qbank/view/45318881?testId=163736035. "If a system crashed, restoring a Snapshot would be the fastest way to restore the system."
While I agree with the concensus, that a full backup should be the correct answer, it is not on the actual exam... sadly. Exam answer is A. Differential. Just took the exam.
Restoring physical servers. Using either a differential or incremental would still require a full backup first which is obviolsy more time consuming than just full restore.
If a failure requires restoring data, they want to minimize the amount of time needed to restore the data. A full/ differential is the best choice in this situation because it only requires the restoration of two backups, the full and the most recent differential backup. In contrast, a full/incremental can require the restoration of several different backups, depending on when the failure occurs.
Full backup has many disadvantages like time and resource. So full is eliminated since the questions asks for BEST options. The BEST among the remaining ones are differential for restoring since its full+1 diff backup restore.
I went with A since differential backup takes shorter time to restore system - two restores: full backup and diff. But the question doesn't mention about a backup. So "C" is correct answer.
The only way to restore ALL of the system data via a full backup would be to perform a full backup daily. Very costly in time and resources. Differentials reduce cost and resources and provide reasonably fast restores.
Also it only mentions wanting to reduce RESTORATION TIME, makes no mention that it cares about how much take it would take to create backups even if youw ere doing it daily. Key word is restoration time
Incremental backups are convenient because they take up less space but take longer to restore. Full would be a fast restore as all the data is already there. I could see a case for snapshot and differential too.
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