Exam SY0-601 topic 1 question 569 discussion

"As the week progresses, the incremental backups stay about the same size." "As the week progresses, the differential backup steadily grows in size." -Security+ SY0-601 Get Certified Get Ahead by Darril Gibson

So, if you choose option A, which is a weekly full backup with daily differential backups, you will need to store the following: One weekly full backup Seven daily differential backups The total amount of storage space required for this option will be more than option D, which is a weekly full backup with daily incremental backups. Here is a table showing the total amount of storage space required for each option: Option Storage space required A. Weekly full backup with daily differential backups One full backup + Seven differential backups B. Weekly full backup with daily incremental backups One full backup + Seven incremental backups C. Weekly full backup with daily snapshot backups One full backup + Seven snapshot backups D. Weekly full backup with daily incremental backups One full backup + Seven incremental backups As you can see, option A requires more storage space than option D. So, the answer is D. A weekly, full backup with daily incremental backups. This will use the least amount of storage space for backups.

I also choose the answer D. Simply because after I backed all my data weekly and put them in safe which is the biggest amount of data then I will go daily incremental which means only for the changes we back up. By this way, depending on the questions requirements and choices, we can have much more room in our storage.

In this scenario, using a weekly full backup combined with daily incremental backups would use the least amount of storage space for backups. Incremental backups only store the changes made since the last backup, which means they are generally much smaller in size compared to full backups or differential backups.