Exam MD-100 All Questions

View all questions & answers for the MD-100 exam

Exam MD-100 topic 5 question 25 discussion

Actual exam question from Microsoft's MD-100

Question #: 25
Topic #: 5

You have a computer that runs Windows 10 and has File History enabled. File History is configured to save copies of files every 15 minutes.
At 07:55, you create a file named D:\Folder1\File1.docx.
You add D:\Folder1 to File History and manually run File History at 08:00.
You modify File1.docx at the following times:
✑ 08:05
✑ 08:12
08:20

✑ 08:24
✑ 08:50
At 08:55, you attempt to restore File1.docx.
How many previous versions of File1.docx will be available to restore?

A. 2
B. 3
C. 4
D. 5

Show Suggested Answer

Suggested Answer: B 🗳️

by dukejan at Oct. 29, 2021, 4:03 p.m.

Comments

Submit Cancel

Adesola77

1 year, 10 months ago

The previous versions of File1.docx would be as follows: Version 1: Created at 07:55 Version 2: Created at 08:00 Version 3: Created at 08:15 (includes changes made at 8:05 and 8:12) Version 4: Created at 08:30 (includes changes made at 8:20 and 8:24) The changes made to File1.docx at 08:50 would not be saved until 09:00, so there would be no version created for that time. Therefore, there would be 4 previous versions of File1.docx available to restore at 09:00.

upvoted 1 times

...

flabezerra

2 years, 7 months ago

Selected Answer: B

B is definitely the correct one. No doubts here. File History behavior: 1 - File History runs every 15 minutes even if there are no changes. 2 - As there are no changes, nothing will be saved. 3 - File History runs every 15 minutes from the last save, not the time it was activated. The backup runs 4 times and SAVES COPIES 3 times. 08:00 runs manually and saves a new copy of the file Modifications (08:05 and 08:12) 08:15 runs and saves modifications (08:20 and 08:24) 08:30 runs and saves no modifications 08:45 runs but doesn't do anything modification (08:50) “At 08:55, you attempt to restore File1.docx.”

upvoted 3 times

flabezerra

2 years, 7 months ago

There is a fourth behavior: 4 - If you run a manual save, File History starts timing again from this manual hit.

upvoted 2 times

...

devilcried

3 years, 3 months ago

Selected Answer: B

8:00 -> 1st backup of file 8:15 -> 2nd backup of file 8:30 -> 3rd backup of file 8:45 -> No backup , because no changes happened.

upvoted 4 times

...

HvD

3 years, 5 months ago

It seems a previous bug in early versions of W10, when File History was creating new backups every time, even files were not changed. This also happens when using non-NTFS (source)drives where USN is not available. But normally, File History will only create new backups of changed files.

upvoted 1 times

...

Liver111

3 years, 5 months ago

Answer is 3. File create at 7.55 - First backup at 8. File modified at 8.05 and 8.12 2nd backup @ 8.15 File modified at 8.20 and 8.24 3rd backup at 8.30 No changes 3rd backup 8.45 is the same as 8.30 as no file versions change

upvoted 3 times

Toteek

3 years, 5 months ago

The first backup was 8:15

upvoted 1 times

99redeyeflight

3 years, 2 months ago

"You add D:\Folder1 to File History and manually run File History at 08:00."

upvoted 3 times

...

Paille

3 years, 6 months ago

Backup runs at: 8:00 -> 1st backup of file 8:15 -> 2nd backup of file 8:30 -> 3rd backup of file 8:45 -> No newer version of file available Answer must be 3.

upvoted 2 times

morito

3 years, 5 months ago

Are you sure? Backups run every 15 minutes, wouldn't it be: 8:00 first Backup (manual and file history) 08:15 second Backup 08:30 Third backup 08:45 Fourth backup

upvoted 2 times

RodrigoT

3 years, 5 months ago

There was no modification after 8:30, so the 8:45 backup didn't create a new file. So the file changed at 8:50 didn't have a backup. The last version available is 8:24 from the THIRD backup. So the answer is 3.

upvoted 3 times

...

MR_Eliot

3 years, 7 months ago

available versions: 1. 8:00 2. 8:15 3. 8:30 4. 8:45

upvoted 4 times

RodrigoT

3 years, 5 months ago

Wrong. They are INCREMENTAL backups, not FULL. So, no change, no backup. There was no change between 8:30 and 8:45. The answer is 3.

upvoted 3 times

...

dukejan

3 years, 8 months ago

Thuis should be 3.

upvoted 2 times

...