Exam MB-500 topic 3 question 13 discussion

Actual exam question from Microsoft's MB-500

Question #: 13
Topic #: 3

HOTSPOT -
A user reports that a form takes a long time to load. You suspect that the issue relates to a display method.
You need to resolve the issue.
Which actions should you perform? 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: Yes -
The caching will avoid executing the display method unnecessarily.
To improve the performance of a display method, you can cache the method.

Box 2: No -

Box 3: No -

Box 4: No -
Reference:
https://docs.microsoft.com/en-us/dynamicsax-2012/developer/using-the-display-method-modifier

by sadoki9311 at Sept. 11, 2020, 8:38 p.m.

Comments

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atamjeetbhatia

Highly Voted 3 years, 8 months ago

Set Visible property should be true. This will make display method in-visible and hence Kernel will not execute code of display method. This hence will improve performance.

upvoted 20 times

anykey

3 years, 5 months ago

Set visibility to No will help to improve performance, but it will also change the data shown on the form which wasn't required so, first box = true, rest = false.

upvoted 5 times

Nano14

3 years, 5 months ago

It specifically states "for any data fields that are not needed". So if it improves performance, then the answer should be true.

upvoted 7 times

anykey

3 years, 5 months ago

Nano14, you're right, then it is also a valid option

upvoted 2 times

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gverstrepen

Highly Voted 2 years, 1 month ago

In my opinion : Caching the display method = TRUE --> improves performance Set form ield "Enabled = No" ==> FALSE --> has NO impact on performance Set form field "Visible = No" ==> TRUE --> display method not executed, better performance Set "Skip = Yes" ==> FALSE --> only skips field when pressing TAB, no performance gain The question states that you suspect that slow form performance is caused by A display method (i.e. one of multiple display methods), it does NOT say anything about one specific display method... So for maximum performance gain the caching is applied to ALL display methods and the VISIBLE=NO is applied to all unneccesary display method fields on the form.

upvoted 8 times

globeearth

2 weeks ago

Agreed

upvoted 1 times

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theCoder1

Most Recent 10 months, 4 weeks ago

question 1 (True) definitely.... but all other question I can't found any field property in report or table ( visible) for field so maybe all answer for question 2 and 3 and 4 is false and I think if you don't need any field don't add to report from beginning or delete if you don't need

upvoted 1 times

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faycal

2 years, 5 months ago

True False False False

upvoted 1 times

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viking1

2 years, 11 months ago

Caching a display method does not improve the load of the form, as the display methods still need to be evaluated. Caching only helps to prevent subsequent re-evaluations of the display methods, which will speed up operation once the form HAS loaded.

upvoted 1 times

gverstrepen

2 years, 1 month ago

@viking1 : That's true, but unless I'm mistaken, the cache will only need to be repopulated when the AOS is restarted. Once that is done, getting the data from cache will be a lot faster than reading from the database every time, so the form will "feel" a lot faster from a users's perspective...

upvoted 2 times

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