Top 25+ Advanced WWF Interview Questions & Answers Pdf 2020-21 - 1

Question: 1

What is Windows Workflow Foundation?

Windows Workflow Foundation (WF) is a technology that was first introduced in .NET Framework 3.0.

WF consists of a programming model, a workflow runtime engine, workflow designer, a rules engine and tools to quickly build workflow based applications on Windows.

WF facilitates the separation between the business the business process code and the actual implementation code.

Question: 2

Which component of WF architecture is responsible to execute each workflow instance?

WF runtime engine is responsible to execute each workflow instance.

Question: 3

What is dynamic update?

Dynamic update is a powerful feature of WF that describes the ability of WF to modify the execution path of a running workflow.

This feature is used in circumstances that call for extraneous behavior that was not modeled by the original workflow developer.

Question: 4

What is a runtime engine?

A runtime engine of WF provides the basic functionality to execute and manage the workflow lifetime. It runs within the host process and is responsible for executing each workflow instance. A host process can interact with multiple runtime engines at a time, where each engine executes multiple workflow instances. The host process interacts with runtime engine by using any of the following classes:

Workflow Invoker – Invokes a workflow as its method

Workflow Application – controls the execution of a single workflow instance explicitly

Workflow Service Host – Hosts the workflows and allows sending receiving messages among various instances of workflows

Question: 5

What are XOML files?

WF provides developers a declarative way to create workflows by using eXtensible Application Markup Language (XAML).

The files used to store such workflow markups are known as eXtensible Object Markup Language (XOML) files.