Biztalk Interview Questions and Answers
Question - 31 : - Explain the use of persistence points
Answer - 31 : - Persistence points are used to save the orchestration state to the database. The orchestration engine saves the states of all the running instances at different points. When the orchestration engine has to rehydrate an instance, it uses the last persistence point of that instance and loads it into memory to run the orchestration instance.
Question - 32 : - What are the ways of deploying a BizTalk application?
Answer - 32 : -
There are many ways to deploy a BizTalk application,
- Import them to an application through Deployment Wizard (.msi file)
- Importing through BTSTask.exe
- Deploying from Visual Studio
- MSBuild
- Deploying from BizTalk Server Administration Console
- From command line using BTSTask
Answer - 33 : - Rules Engine is used to define, classify and manage all business rules and applies them to business objects in a dynamic production environment. We can create a rule-based application by constructing rules from business logic which will apply to the data in the business objects.
Question - 34 : - What are the differences between Message Routing And Content Routing?
Answer - 34 : -
Message-based Routing - no processing will be applied to the message. It will be routed through Orchestration.
Content-based Routing - the routing will be based on envelope properties. The message will be directly sent to the destination without using Orchestration
Question - 35 : - Explain the execution modes in a pipeline Stage
Answer - 35 : -
We have an option to set a different execution model for each pipeline stage. We can set the execution mode to either 'All' or 'FirstMatch'.
- All - all the components in the pipeline will run in sequence
- first match - only the first component that recognizes the message is run
Answer - 36 : - If an orchestration instance is dehydrated, it can be rehydrated when the orchestration engine is triggered through a message (or) when a specified time-out expires. The orchestration engine loads the saved orchestration instance into memory and runs it.
Question - 37 : - What is Dehydration?
Answer - 37 : - The process in which the state of orchestration is serializing into a SQL Server database is called Dehydration. It determines how long an Orchestration instance has been idle. If the Orchestration instance idle time exceeds a threshold, it will dehydrate the instance.
Question - 38 : - How can we transfer files without using Orchestration?
Answer - 38 : - We can use content-based routing for transferring files without Orchestration. Content-based routing routes messages based on envelope properties. While sending messages, we can create a filter that checks for ‘receive location’ in the envelope. If a match is found, it will be directly sent to the receive location, instead of sending it through Orchestration.
Question - 39 : - What is BizTalk Orchestration?
Answer - 39 : - Orchestration represents an executable business process based on XLANG/s language. It publishes and subscribes messages through MessageBox. Message send and receive actions, the ports through which the messages should be transported are all fundamental elements of orchestration.
Question - 40 : - Explain about Virtual Directory
Answer - 40 : - If we have written a custom Web service for applying to BizTalk Server, then we have to create a virtual directory. A service will be published at isolated host(IIS) in the virtual directory by the publishing wizard.