What are AOS in AX & D365FO

AOS in AX & D365FO

The Microsoft Dynamics AX / D365FO (Finance & Operations) Object Server (AOS) is the second-tier application server in the Microsoft Dynamics AX three-tier architecture.

The AX 2012 3-tier environment is divided as follows:

First Tier – Intelligent Client
Second Tier – AOS
Third Tier – Database Server

In D365FO N-tier environment is divided as follows:

X-Tier – AOS, and Batch servers
X-Tier – Database Server

In an N-tier solution, the database runs on a server as the X tier; the AOS handles the business logic, Batch jobs/ background process in multiple tiers, and handles the user interface and necessary program logic.

Support Faryal's Cusine

What is AOT in AX & D365FO

Define AOT in AX & D365FO

The Application Object Tree (AOT) is a tree view of all the application objects within Microsoft Dynamics AX and D365FO. The AOT contains everything you need to customize the look and functionality of a Microsoft Dynamics AX application.

In the D365FO, You can find the AOT objects in Application Explorer.

Support Faryal's Cusine

Virtual Company

Why We Use Virtual Companies?

Virtual company accounts contain data in certain tables that are shared by any number of company accounts. This allows users to post information in one company that will be available to another company.

Support Faryal's Cusine

Differentiate Refresh, Reread, Research and Executequery

What is the Difference?

Refresh

refresh will not reread the record from the database. It basically just refreshes the screen with whatever is stored in the form cache.

Reread

reread () will only re-read the CURRENT record from the DB so you should not use it to refresh the form data if you have added/removed records. It’s often used if you change some values in the current record in some code, and commit them to the database using .update() on the table, instead of through the form data source. In this case, .reread () will make those changes appear on the form.

ReSearch

research() will rerun the existing form query against the data source, therefore updating the list with new/removed records as well as updating existing ones. This will honor any existing filters and sorting on the form.

ExecuteQuery

executeQuery () is another useful one. It should be used if you have modified the query in your code and need to refresh the form. It’s like research() except it takes query changes into account.

Support Faryal's Cusine

D365FO Interview Question

D365FO Interview Questions & Answers

What is Microsoft Dynamics AX?

Answer: Link

What is the difference between Microsoft Dynamics AX2012 & D365FO?

Answer: Link

Difference Between Edit And Display Method?

Answer: Link

What Is An Index?

Answer: Link

What are OOPS concepts?

Answer: Following are the main concept of OOPS:

Data Abstraction: Showing only the essential information and hide background details.
Encapsulation: Wrapping of data member and method to a single unit.
Inheritance:-The Flowing of property of parent class to the child class.
Polymorphism:-The property of using the same method again and again to perform different things.

Differentiate Refresh (), Reread (), Research (), Executequery ()?

Answer: Link

Why We Use Virtual Companies?

Answer: Link

What is AOT in AX & D365FO?

Answer: Link

What is AOS in AX & D365FO?

Answer: Link

Interface VS Abstract?

Answer: Link

How many types of key tables has?

Answer: Link

Replacement Key
Alternate key
Surrogate key

What is the purpose of the User Interface Builder Class?

Answer: Link

Overloading vs Overriding?

Answer: Link

What is the concept of Extension?

Answer: Link

Define Recordset Operations and types.

Answer: Link

We have 3 types of Bulk Operations

insert_recordset
update_recordset
delete_from

Which development environment is used in D365FO?

Answer: Visual Studio IDE.

What is ConView()?

Answer: It is a Global class that can be utilized to view elements in a tree format.

What is COC (Chain of Command)?

Answer: In D365, To create the extension of the Protected access specified class, We mainly used COC, COC can also be used for a public class. For extension, we used the keyword Extension of(). We use the keyword final to define the class. we use the keyword next to call the base class methods.

Difference between COC and Event Handler?

Answer Link

Why are that people prefer TempDB over InMemory tables while using them in queries for reports?

Answer: Despite both being temporary type tables.

TempDB

You can use TempDB Table the SSRS report with a large amount of data without losing performance.

TempDB tables can be used in Joins with the other temp table or regular table.

Memory Table

Slow performance with a huge number of records.

couldn't use the inMemory table in the query with a join.

How to update the cross-reference tool?

Answer: Link

What is a model in Dynamics 365 Finance & Operations?

Answer: A model is a design-time concept, for example, a warehouse management model or a project accounting model. A model always belongs to a package. A package is a deployment and compilation unit of one or more models. It includes model metadata, binaries, and other associated resources.

What is the difference between package and model in d365?

Answer: A model is a group of elements, such as metadata and source files, that typically constitute a distributable software solution and includes customizations of an existing solution.

A package is a deployment and compilation unit of one or more models. It includes model metadata, binaries, and other associated resources.

What is Extensible Data Security?

Answer: Link

What is the Sysoperation framework how it is different from the runbase framework?

Answer: Link

What is the difference between the configuration key & the security key?

Answer: Link

What is an intermediate language?

Answer Link

How to Import & Export Model?

Answer: Link

How to Import & Export Project?

Answer: Link

What is Microsoft LCS?

Lifecycle Services (LCS) for Microsoft Dynamics is a collaboration portal that provides an environment and a set of regularly updated services that can help you manage the application lifecycle of your implementations of the Dynamics 365 Finance and Operations apps.

Difference between List, set, container and Map?

Answer: Link

Support Faryal's Cusine

What Is An Index?

A SQL index is used to retrieve data from a database very fast. Indexing a table or view is, without a doubt, one of the best ways to improve the performance of queries and applications.

A SQL index is a quick lookup table for finding records users need to search frequently. An index is small, fast, and optimized for quick lookups. It is very useful for connecting relational tables and searching large tables.

SQL indexes are primarily a performance tool, so they really apply if a database gets large. SQL Server supports several types of indexes but one of the most common types is the clustered index. This type of index is automatically created with a primary key.

Support Faryal's Cusine

Edit and Display Method

Difference Between Edit And Display Method

The display indicates that the method’s return value is to be displayed on a form or a report.
The value cannot be altered in the form or report.

Edit indicates that the method’s return type is to be used to provide information for a field that is used in a form. The value in the field can be edited.