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Exam AZ-104 topic 6 question 6 discussion

Actual exam question from Microsoft's AZ-104

Question #: 6
Topic #: 6

HOTSPOT -
You have an Azure virtual machine named VM1 and a Recovery Services vault named Vault1.
You create a backup policy named Policy1 as shown in the exhibit. (Click the Exhibit tab.)

You configure the backup of VM1 to use Policy1 on Thursday, January 1 at 1:00 AM.
You need to identify the number of available recovery points for VM1.
How many recovery points are available on January 8 and January 15? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Show Suggested Answer

Suggested Answer:

Box 1: 6 -
5 latest daily recovery points, which includes the weekly backup from the previous Sunday, plus the monthly recovery point.

Box 2: 8 -
5 latest daily recovery points, plus two weekly backups, plus the monthly recovery point.
Reference:
https://social.technet.microsoft.com/Forums/en-US/854ab6ae-79aa-4bad-ac65-471c4d422e94/daily-monthly-yearly-recovery-points-and-storage-used? forum=windowsazureonlinebackup

by Raakezz at Dec. 5, 2020, 12:54 p.m.

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fedztedz

Highly Voted 4 years, 7 months ago

Answer is correct in case yearly backup is also in the question. If we assumed we have yearly, then the answer will be: - @8 JAN: 5 daily backups ( 1 weekly backup included) + 1 monthly = 6 - @ 15 JAN: 5 daily backups ( 1 weekly backup included) + 1 weekly + 1 monthly +1 yearly = 8 backups

upvoted 161 times

XolexHp

3 years, 11 months ago

I totally dont understand why only 6 - 8 recovery point??? Why we have daily backup, it means that everyday, each day has a point => Then means, from 1 JAN to 8 JAN we had 8 days <=> 8 points?!?! Please help meeeeee

upvoted 7 times

imartinez

3 years, 11 months ago

Check for retention of daily backup point, in the daily case is set to 5, that means that every daily BK, called recovery points by Azure, oldest than 5 days will be deleted. https://docs.microsoft.com/en-us/azure/backup/backup-azure-vm-backup-faq

upvoted 25 times

XolexHp

3 years, 11 months ago

Thank you, imartinez, understood

upvoted 6 times

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Otijames

2 years ago

I don't understand why you all start counting the daily retention period from 4th..is it not to be counted from the 1st jan? Pleaseeee help me here??

upvoted 1 times

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Miles19

4 years, 4 months ago

correct.

upvoted 2 times

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PRabiu

4 years, 7 months ago

15th Jan is a Friday = 5 daily backups (Monday - Friday) + 2 Weekly (2 sundays) + 1 Monthly = 8 backups

upvoted 12 times

Franpb90

4 years, 2 months ago

15th Jan is a Thursday, and 1 weekly backup is the same that 1 daily backup. It should be 7 the second answer.

upvoted 4 times

learning23497

3 years, 1 month ago

How do you know it is Thursday? No year is mentioned. Also - 8 is the closest answer to 7, so in that case i would also go with 8 :-)

upvoted 2 times

Grimstad

3 years, 1 month ago

It says January 1st is a Thursday, which would make the 15th also a Thursday.

upvoted 5 times

Turbosco

2 years, 2 months ago

Box 1 is 6: 5 Daily backups (4 Jan - 8 Jan including weekly backup at 4 Jan ) + Monthly backup (2 Jan) Box 2 is 8: 5 Daily backups (11 Jan - 15 Jan including weekly backup at 11 Jan) + 1 Weekly backup (4 Jan) + 1 Monthly backup (2 Jan) + 1 Yearly backup (9 Jan)

upvoted 5 times

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jimmyli

4 years, 4 months ago

in other words, 2nd box should be 7 which is not included in the four choices. because yearly backup is not mentioned, the correct answer should be 5 daily backups including the latest weekly backup + 1 weekly for the previous weekend + 1 monthly backup

upvoted 12 times

Thomas_L

4 years, 3 months ago

its 6. We retain the 5 daily backups from January 4th - January 8th. There is a weekly backup on the 4th that we do NOT include in the count because it's already backed up by the 5-day retention period of the daily backups. Then we have a monthly backup on the 2nd, that is outside the 5-day retention period. 5 daily backups + 1 monthly backup = 6 backup points.

upvoted 41 times

MrJJ10

2 years, 8 months ago

I understand this explanation very good, however Weeklys started on the 1st @ 1400, and yes you only retain 5 Daily backups, which would be the 4th-8th. The monthly is scheduled to take place on the 2nd and Retain for 20 weeks. Not understanding why would you count a Weekly Back (Sunday at 2pm) as part of the Daily when Weekly's are maintained for 20 weeks. I think the count would be 7 (5 Daily(4th-8th) + 1 Weekly(Sunday) + 1 monthly(2nd which is a Friday)). I understand that 7 is not part of the presented answers so you would have to go with 6. My real world Weekly backups run seperately from the Daily.

upvoted 4 times

ygnacioL

1 year, 9 months ago

Totally agree

upvoted 1 times

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nbudummies

4 years, 1 month ago

Where is the yearly backup? it's should be 7 as jimmy comment.

upvoted 2 times

msidy2020

4 years, 1 month ago

why does yearly backup run before Jan 8th 2 PM ? it is not even scheduled

upvoted 1 times

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mlantonis

Highly Voted 4 years, 2 months ago

Correct Answer: Box 1: 6 5 latest daily recovery points, which includes the weekly backup from the previous Sunday, plus the monthly recovery point. 8th January = 5 daily backups (1 weekly backup included) + 1 Monthly = 6 backups Box 2: 8 5 latest daily recovery points, plus two weekly backups, plus the monthly recovery point. 15th January is a Friday = 5 daily backups (Monday - Friday) + 2 Weekly (2 Sundays) + 1 Monthly = 8 backups

upvoted 90 times

cloudera

3 years, 2 months ago

8th January = 5 daily backups. How did we come up with 5 days? On the question, I can't see any description that says backups only happen on the weekdays. So backups Mon-Sunday be 7 backups + 1 weekly + 1 Monthly = 9 backups. What am I missing here? Can someone explain to me? Thanks

upvoted 1 times

Grimstad

3 years, 1 month ago

Daily backups are only retained for 5 days, so you will only have a maximum of 5 daily backups. Monday-Friday doesn't make any sense to me - whether it's a weekday or not is irrelevant.

upvoted 2 times

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Henryjb3

2 years, 6 months ago

Why is the 1 weekly backup included in box 1 then not included in box 2?

upvoted 4 times

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jose

3 years, 10 months ago

The answer is correct, but the explanation is not because 15th January is Thursday. So: 5 daily backups (11th Sunday weekly backup included) + 1 weekly backup (4th Sunday) + 1 Monthly + 1 Yearly = 8 backups Box 2: 8.

upvoted 30 times

op22233

1 year, 3 months ago

Perfect, mlantonis made that mistake, but the answer still correct.

upvoted 1 times

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itgg11

3 years, 5 months ago

Jose you are spot on. mlantonis missed a yearly backup on 09.01. 6 and 8 recovery points still.

upvoted 7 times

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Otijames

2 years ago

But the month started on the 2nd and the daily starts counting from the 1st - 5th so it should be 1. 4 daily + 1 daily/weekly/monthly = 5 2. 4 daily + 1 daily/weekly/monthly + 1 yearly =7

upvoted 2 times

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70ec7c1

Most Recent 3 months, 1 week ago

@Jan 8th - days backup'ed = 2 (monthly), 4 (weekly), 5,6,7,8 (5 consecutive days including 4th) = 6 backup @Jan 15th - days backup'ed = 2 (monthly), 4 (weekly), 9 (yearly), 11 (weekly), 12,13,14,15 (5 consecutive days including 11th) = 8 backups

upvoted 1 times

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8ac3742

4 months ago

Answer is 6 and 8. On Jan 8 2PM, there is 5 daily including one weekly on Jan 4, plus one Monthly on Jan 2, in total there is 6 recovery points. On Jan 15 2PM, there is 5 daily including one weekly on Jan 11, plus one weekly on Jan 4, one Monthly on Jan 2, one yearly on Jan 9, in total there is 8 recovery points. Weekly/Monthly/Yearly covers daily, and keep Weekly/Monthly/Yearly retention rule.

upvoted 1 times

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codered4409

8 months, 3 weeks ago

Answer : 6 total backups ================================ 2-Jan Thursday Monthly 3-Jan Friday 4-Jan Saturday Daily 5-Jan Sunday Daily, Weekly 6-Jan Monday Daily 7-Jan Tuesday Daily 8-Jan Wednesday Daily Answer : 8 total backups ================================ 2-Jan Thursday Monthly 3-Jan Friday 4-Jan Saturday 5-Jan Sunday Weekly 6-Jan Monday 7-Jan Tuesday 8-Jan Wednesday 9-Jan Thursday Yearly 10-Jan Friday 11-Jan Saturday Daily 12-Jan Sunday Daily, Weekly 13-Jan Monday Daily 14-Jan Tuesday Daily 15-Jan Wednesday Daily

upvoted 2 times

gabarel

5 months, 3 weeks ago

Perfect answer!

upvoted 1 times

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jodtzz

9 months, 1 week ago

The answer is correct. 6, 8. The important thing to keep in mind here is that there are not separate backups for daily vs. weekly vs. monthly vs. yearly - they all use the same backups. For example, the yearly backup occurring on January 9 also represents the daily backup for that day. However, they are retained separately. So the backup on January 9 is not purged by the daily retention policy, but rather the yearly.

upvoted 2 times

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manawey

10 months, 2 weeks ago

Sorry guys, I believe the explanations for answers are all wrong. We must understand Grandfather-Son (GFS) backup policy as defined by Azure. If assumed and applied here, the following backup recovery points will be retained: Box 1 = 6: 4 daily (Monday-5th, Tuesday-6th, Wednesday-7th, Thursday-8th), 1 weekly (Sunday, January 4th), 1 monthly (Friday, January 2nd). Box 2 = 8: 4 daily (Monday-12th, Tuesday-13th, Wednesday-14th, Thursday-15th), 2 weekly (Sundays the 4th & 11th), 1 monthly (Friday, January 2nd), 1 yearly (Friday, January 9th). Graph it yourselves. Reference: https://learn.microsoft.com/en-us/azure/backup/azure-backup-glossary

upvoted 1 times

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joolitan

10 months, 3 weeks ago

------------------------------------------------------ 01-Jan Thu Daily 02-Jan Fri Daily Monthly 03-Jan Sat Daily 04-Jan Sun Daily Weekly 05-Jan Mon Daily 06-Jan Tue Daily 07-Jan Wed Daily 08-Jan Thu Daily ------------------------------------------------------ 09-Jan Fri Daily Yearly 10-Jan Sat Daily 11-Jan Sun Daily Weekly 12-Jan Mon Daily 13-Jan Tue Daily 14-Jan Wed Daily 15-Jan Thu Daily ------------------------------------------------------

upvoted 1 times

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joolitan

10 months, 3 weeks ago

Start 01 Jan is Thu, 1am Daily, retention 5 days Sun Weekly, retention 20 Week 2nd Monthly, retention 24 month 9th Yearly, retention 5 years 08 Jan = 5 daily ( inclusive of 1 weekly ) + 1 monthly = 6 backups 15 Jan = 5 daily ( inclusive of 1 weekly ) + 1 weekly (4th Jan) + 1 monthly (2th Jan) + 1 yearly (9th Jan) = 8 backups

upvoted 1 times

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shobhitmathur18

1 year, 1 month ago

how are we suppose to do this in our mind in exam? I have the online exam tomorrow, no pen paper allowed.. any tips?

upvoted 2 times

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bobothewiseman

1 year, 4 months ago

Jan 1 - 4 = 1 weekly backup Jan 5 - 8 = 4 daily backup Jan 2. = 1 monthly backup Answer is 6 Jan 1 - 4 = 1 weekly backup Jan 5- 11 = 1 weekly back up Jan 12-15= 4 daily backups Jan 2. = 1 monthly backup Jan 9. = 1 yearly backup Answer is 8

upvoted 1 times

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tashakori

1 year, 5 months ago

Given answer is correct

upvoted 1 times

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31c21da

1 year, 6 months ago

I see someone asking why the first week's backup starts from the 4th. I was also initially confused by this. In fact, the 'Retention of daily backup point' refers to how many days of backups you can retain. Therefore, the logic is on 8th, you can only retain the backups from the 4th to the 8th, as the daily backups before the 3rd would have already been automatically deleted.

upvoted 1 times

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Bloodygeek

1 year, 7 months ago

Answer is correct. Box 1 on 8 JAN Had 5 daily backups. 4,5,6,7,8 JAN 1 weekly backup. However, 4 JAN was a Sunday. The time of weekly backup is the same as the daily backup. So this does not count 1 Monthly backup 2 JAN. No Yearly backup as it only starts at 9 JAN. In total, it had 5+1=6 backups. Box 2 on 15 JAN Had 5 daily backups. 11,12,13,14,15 JAN 2 weekly backup. However, 11 JAN was a Sunday covered by daily backup for 5 days retention. The time of weekly backup is the same as the daily backup. So there was only 1 valid weekly backup. 1 Monthly backup 2 JAN. 1 Yearly backup 9 JAN. In total, it had 5+1+1+1=8 backups.

upvoted 5 times

itismadu

10 months, 3 weeks ago

Correct. I had to draw up a calendar on excel and map out the backups. I came here to write my discoveries but first look for similar answer and i found yours. The time of the backup also plays a role

upvoted 1 times

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SkyZeroZx

1 year, 7 months ago

Is important to be careful what this question is asking: Recovery Points or Backups ? 1 recovery point can be used for multiple backups, which means that if a Weekly RP & Daily RP overlaps, there will be only 1 RP but 2 Backups. Box 1: 5 Daily RP (4, 5, 6, 7, 8 Jan) 0 Weekly RP (4 Jan is already present in Daily RP, so no new RP is added) 1 Monthly RP (2 Jan) TOTAL: 6 RP Box 2: 5 Daily RP (11, 12, 13, 14, 15 Jan) 1 Weekly RP (4 Jan; 11 Jan is already present in Daily RP) 1 Monthly RP (2 Jan) 1 Yearly RP (9 Jan) TOTAL: 8 RP

upvoted 7 times