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Exam MS-100 topic 2 question 8 discussion

Actual exam question from Microsoft's MS-100
Question #: 8
Topic #: 2
[All MS-100 Questions]

Your company has an on-premises Microsoft Exchange Server 2016 organization and a Microsoft 365 Enterprise E5 subscription.
You plan to migrate mailboxes and groups to Exchange Online.
You start a new migration batch.
Users report slow performance when they use the on-premises Exchange Server organization.
You discover that the migration is causing the slow performance.
You need to reduce the impact of the mailbox migration on the end-users.
What should you do?

  • A. Create a mail flow rule.
  • B. Configure back pressure.
  • C. Modify the migration endpoint settings.
  • D. Create a throttling policy.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
The migration is causing the slow performance. This suggests that the on-premise Exchange server is struggling under the load of copying the mailboxes to
Exchange Online. You can reduce the load on the on-premise server by reducing the maximum number of concurrent mailbox migrations. Migrating just a few mailboxes at a time will have less of a performance impact than migrating many mailboxes concurrently.
Reference:
https://support.microsoft.com/en-gb/help/2797784/how-to-manage-the-maximum-concurrent-migration-batches-in-exchange-onl

Comments

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LeGluten
Highly Voted 5 years, 2 months ago
With the migration endpoint settings you will be able to choose how many simultaneous mailbox will be exported.
upvoted 32 times
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Highly Voted 4 years, 8 months ago
Answer: C Explanation The migration is causing the slow performance. This suggests that the on-premise Exchange server is struggling under the load of copying the mailboxes to Exchange Online. You can reduce the load on the on-premise server by reducing the maximum number of concurrent mailbox migrations. Migrating just a few mailboxes at a time will have less of a performance impact than migrating many mailboxes concurrently.
upvoted 26 times
extrankie
3 years, 3 months ago
nice explain
upvoted 1 times
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Don123
Most Recent 2 years, 3 months ago
You should do C. Modify the migration endpoint settings. When migrating mailboxes and groups to Exchange Online, it is important to consider the impact on end-user performance. One way to reduce the impact of the migration on end-users is to modify the migration endpoint settings.
upvoted 1 times
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waterlego
3 years ago
Still valid, April 2022
upvoted 3 times
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Wojer
3 years, 3 months ago
I think that D is better answer https://docs.microsoft.com/en-us/exchange/mailbox-migration/office-365-migration-best-practices#microsoft-365-and-office-365-migration-service-throttling
upvoted 2 times
Paolo2022
2 years, 5 months ago
Well, modifying the migration endpoint settings is the way to implement migration service throttling - and there's no such thing as a throttling policy. See the source that you provided. So C is definitely correct here.
upvoted 1 times
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Jcbrow27
3 years, 5 months ago
user-throttling is a configuration one by one user, in the scenarios of migration for a company i think is not the best way to migrate and control the performance, for me the answer is C
upvoted 1 times
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Panku
3 years, 7 months ago
C is right answer read the office ref document
upvoted 4 times
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melatocaroca
3 years, 10 months ago
I really prefer Answer D, but C is valid too D Common migration performance factors The user-throttling policy has default settings and limits the overall maximum data transfer rate. https://docs.microsoft.com/en-us/exchange/mailbox-migration/office-365-migration-best-practices C On the migration endpoint itself, there are two values that can be changed: MaxConcurrentMigrations denotes how many mailboxes can concurrently be moved from the migration endpoint during the initial phase of the migration (copy of the mailbox). The default value is 20. MaxConcurrentIncrementalSyncs depicts how many delta synchronizations can be active at the same time. The value for the default endpoint is 20. When you create a new endpoint, the default is 10. https://www.enowsoftware.com/solutions-engine/intelligently-using-migration-endpoints-to-speed-up-migrations-to-exchange-online
upvoted 4 times
jeffyeh
3 years, 8 months ago
I would prefer D as well. Most of the migration bottleneck is on networking side than the server loading.
upvoted 2 times
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lengySK
3 years, 8 months ago
I prefer D as well.
upvoted 2 times
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Aysan
3 years, 11 months ago
isn`t this ms-101 question?
upvoted 1 times
zer0en
3 years, 11 months ago
i can confirm that this is in the ms-100 exam per 23.05.21
upvoted 3 times
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mkoprivnj
4 years, 4 months ago
C for sure!
upvoted 3 times
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emil568
4 years, 8 months ago
Could be a solution
upvoted 1 times
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minajahan
5 years, 1 month ago
This is an example cmdlet: "Set-MigrationEndpoint -Identity CutoverExchangeEndpoint01 -MaxConcurrentIncrementalSyncs 50 -NspiServer Server01.contoso.com" https://docs.microsoft.com/en-us/powershell/module/exchange/move-and-migration/set-migrationendpoint?view=exchange-ps
upvoted 5 times
PDR
5 years, 1 month ago
additional info - looking at the link you provided there is also the parameter option -MaxConcurrentMigrations , as the question specifies mailbox migrations this could be appropriate but as the question says a 'migration batch' it seems like a staged migration so the one you specified -MaxConcurrentIncrementalSyncs would be the best in that case. The answer remains correct in either case of course.
upvoted 5 times
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