Microsoft AZ-204 Exam - Topic 8 Question 56 Discussion

Actual exam question for Microsoft's AZ-204 exam

Question #: 56
Topic #: 8

[All AZ-204 Questions]

You are developing a mobile instant messaging app for a company.

The mobile app must meet the following requirements:

* Support offline data sync.

* Update the latest messages during normal sync cycles.

You need to implement Offline Data Sync.

Which two actions should you perform? Each conn I answer presents part of the solution.

NOTE: Each correct selection is worth one point.

ARetrieve records from Offline Data Sync on every call to the PullAsync method.

BRetrieve records from Offline Data Sync using an Incremental Sync.

CPush records to Offline Data Sync using an Incremental Sync.

DReturn the updatedAt column from the Mobile Service Backend and implement sorting by using the column.

EReturn the updatedAt column from the Mobile Service Backend and implement sorting by the message id.

Show Suggested Answer

Suggested Answer: B, E

B: Incremental Sync: the first parameter to the pull operation is a query name that is used only on the client. If you use a non-null query name, the Azure Mobile SDK performs an incremental sync. Each time a pull operation returns a set of results, the latest updatedAt timestamp from that result set is stored in the SDK local system tables. Subsequent pull operations retrieve only records after that timestamp.

E (not D): To use incremental sync, your server must return meaningful updatedAt values and must also support sorting by this field. However, since the SDK adds its own sort on the updatedAt field, you cannot use a pull query that has its own orderBy clause.

https://docs.microsoft.com/en-us/azure/app-service-mobile/app-service-mobile-offline-data-sync

by Sage at May 07, 2022, 07:38 AM

Limited Time Offer

25%

Off

Get Premium AZ-204 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Victor

4 months ago

Can someone explain why Incremental Sync is better?

upvoted 0 times

...

Mendy

4 months ago

I disagree, D seems more relevant for updates.

upvoted 0 times

...

Beth

4 months ago

Surprised that sorting by message id (E) is even suggested!

upvoted 0 times

...

Lelia

4 months ago

I think A is also a good option, but not sure about D.

upvoted 0 times

...

Noah

5 months ago

B and C are definitely the way to go!

upvoted 0 times

...

Paris

5 months ago

I vaguely recall that using the updatedAt column is important for syncing. I might lean towards D and E, but I'm not completely confident.

upvoted 0 times

...

Ailene

5 months ago

I'm not entirely sure, but I feel like A could be too resource-intensive. Maybe B and D are better options?

upvoted 0 times

...

Tommy

5 months ago

I remember we discussed the importance of incremental sync for efficiency, so I think B and C might be the right choices.

upvoted 0 times

...

Joesph

5 months ago

I practiced a similar question where sorting was crucial. I think D makes sense, but I'm torn between B and C for the other choice.

upvoted 0 times

...

Princess

5 months ago

Okay, I think I've got it. The R&D investment likely leads to product innovations and improvements that make HP devices more appealing to customers. This increased demand should drive sales for HP resellers.

upvoted 0 times

...

Maricela

5 months ago

Hmm, I'm a little unsure about some of the commands here. I'll need to review my notes on partitioning and swap space to make sure I do this correctly.

upvoted 0 times

...

Terina

5 months ago

I've seen similar questions before, so I think I have a good strategy. I'll focus on the steps related to ensuring the environments are set up the same way on both machines.

upvoted 0 times

...

Noelia

5 months ago

This question seems pretty straightforward. I think the answer is C - the GUI elements in the OWS platform are used to describe the interface definition.

upvoted 0 times

...