Exam 220-1102 topic 1 question 121 discussion

The answer is Differential, A

The answer is A. Per Professor Messer. Restoring a differential backup is also a moderate amount of time, because we’re not going to need any more than two sets of backup information. That would be your full backup and the last differential backup. When you perform a differential backup, you are not clearing the archive attribute because you’re going to perform this backup again on the next differential backup.

The answer is Full backup. If you are saying its A then you need jesus.

you guys are everywhere. keep it simple .yeah? they required 2 set of tapes to restore. First tape which has full backup and second tape (differential) which has all differential data since last back up. if you still confused, watch out here: https://docs.google.com/document/d/1u4Tfh8v_EHV-Jkc1lLa1qCN1N_0FwHcEwIIHKv0y4RU/edit?usp=sharing

Nowhere in the study material is there a mention of these tapes and what their capacity may be or what they even are really. It requires knowledge outside of the scope of core 2. Another example of a bad question from comptia.

While in the real world i believe the answer should be D as I would want to have a backup in 2 location the answer appears to be A. I hate these questions because a large # of them are opinion based.

Incremental backup (Option C): An incremental backup includes only the data that has changed since the last backup, whether it was a full or incremental backup. In a scenario where only two sets of tapes are required for restoration, incremental backups are more efficient as they capture changes since the last backup, be it full or incremental.

The correct answer is D. full backup. A full backup creates a complete copy of all selected files and folders. This would indeed be the option that requires only two sets of tapes for a restore, as each set would represent a complete backup.

A. Differential backup

The way I see it, a differential backup works because of the two tapes. One tape is a full backup, with the second having a differential backup for the changed files. That way you save both your baseline, as well as the up to date files.

Correct answer is D, Full backup. Read the question again. He is using TAPES for backup.

You need at least one full backup between two drives to keep full storage security incase of failure at any time.

C: An incremental backup method would be the best option for setting up a backup method on a workstation that only requires two sets of tapes to restore.

THE ANSWER IS A

Absolutely A

The correct answer is D. Full Backup. A full backup only requires two sets of tapes to restore because it backs up all the data from the workstation. With a differential backup, the backups need to be taken multiple times over a period of time, so more tapes would be needed to restore the data. Off-site backup involves storing the data in a remote location, so tapes would not be necessary. Lastly, an incremental backup requires multiple tapes because it only backs up the data that has changed since the last backup, so multiple tapes would be necessary to restore the data.

A full backup takes two tapes. The question asks for two tapes.