1⟩ Tell us can persistence point occur in the Delay or Receive shape?
Yes, but only if the Orchestration Engine determines that the instance needs to be dehydrated.
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50 Biztalk Orchestration Questions And Answers
2⟩ Tell me which scope can have an Exception Handling?
A scope configured with the transaction type of None or Long running can have exception handling added but not Atomic scope.
3⟩ Explain me what are the ways to add properties in context?
Promoting a node to a property field means to make a node value available in the context of the message. Adapters and pipeline components write in the context.
4⟩ Please explain what is XLANG and where it is used?
XLANG/s can be viewed as a messaging language with some of the expression capabilities of C#. However, code is not portable between XLANG/s and C#. The language is used for orchestrations. XLANG/s statements generally fall into one of two categories: simple statements that act on their own, such as receive or send, and complex statements that contain or group either simple statements or other complex statements, such as scope, parallel, and listen. The semantics embodied in XLANG/s are a reflection of those defined in the Business Process Execution Language for Web Services (BPEL4WS) specification published by Microsoft, IBM, and BEA for the definition of business process semantics.
5⟩ Tell me can orchestration use components other than listed in Toolbox?
Yes. It is possible to use components like pipeline, business rule policy, .net component etc.
6⟩ Tell us types of messages?
Two types of message
☛ Typed message : A message created in Orchestration is bound to the schema
☛ Untyped message : A message is bound to System.Xml.XmlDocument instead of the schema.
7⟩ Explain me where is information about promoted properties stored?
The information about the promoted properties is extracted and stored in the bts_DocumentSpec table in the Management database.
8⟩ Tell me can recursion be achieved in Orchestration?
No recursion can not be achieved in Orchestration
9⟩ Tell me can we use message metadata in Orchestration?
Yes we can use message metadata in Orchestration
10⟩ Tell us which Interfaces do you need to implement in a disassembling custom pipeline component?
A disassembling pipeline component receives one message on input and produces zero or more messages on output. Disassembling components are used to split interchanges of messages into individual documents. Disassembler components must implement the following interfaces:
☛ IBaseComponent.
☛ IDisassemblerComponent.
☛ IComponentUI.
☛ IPersistPropertyBag.
11⟩ Tell me is it possible to use Message Assignment shape and Transform shape individually?
No, it is not possible, Transform and Message assignment shape must run under construct shape.
12⟩ Tell me what are conditional persistence points?
The Receive shape, Listen Branch and Delay shape are conditional persistence points.
13⟩ Tell us is it possible to enforce Orchestration to behave in singleton way?
Yes it is possible with the help of correlation.
14⟩ Explain me is it necessary for all .Net components being called from orchestration to be serializable?
Yes it is necessary (good practice) for all .Net components being called to be serializable. If not then Atomic scope is to be used which has its own limits.
15⟩ Please explain how does Orchestration subscribes to messages?
In Orchestration, the first Receive shape is responsible for creating a subscription. Following two properties are involved in it,
☛ Message : This tells what message this Orchestration is subscribing to
☛ Activate : This tells to consume the message when found in a MessageBox
16⟩ Please explain what is a link in a Map?
A link specifies the basic function of copying data from an element or attribute in an input instance message to an element or attribute in an output instance. You create links between records and fields in the source and destination schemas at design time. This drives the creation, at run time, of an output instance message conforming to the destination schema from an input instance message conforming to the source schema.
17⟩ Tell us can I use System.Messaging on the BizTalk machine having MSMQT installed?
Using System.Messaging on the Biztalk machine will not work; this is because System.Messaging needs MSMQ. I.e., you need to install the MSMQ client part to have System.Messaging work.
18⟩ Tell me how to load message in a variable?
It can be done using the LoadXml method. Say xmlDoc is a variable then following is done to load employee message.
xmlDoc.LoadXml("<Employee><first_name>Jhon</first_name><last_name>Smith</last_name></Employee>");
19⟩ Tell me what is the maximum number of properties that can be used in correlation set?
The correlation set can have a maximum of three properties used for correlation on the receive shapes.
20⟩ Tell me can an Atomic scope can have an exception handler of their own?
No, it can only have a Compensation Block.
