Q. Explain in brief about the QTP Automation Object Model.
A. Essentially all configuration and run functionality provided via the QuickTest interface is in some way represented in the QuickTest automation object model via objects, methods, and properties. Although a one-on-one comparison cannot always be made, most dialog boxes in QuickTest have a corresponding automation object, most options in dialog boxes can be set and/or retrieved using the corresponding object property, and most menu commands and other operations have corresponding automation methods. You can use the objects, methods, and properties exposed by the QuickTest automation object model, along with standard programming elements such as loops and conditional statements to design your program.

Q. How to handle dynamic objects in QTP?

A. QTP has a unique feature called Smart Object Identification/recognition. QTP generally identifies an object by matching its test object and run time object properties. QTP may fail to recognise the dynamic objects whose properties change during run time. Hence it has an option of enabling Smart Identification, wherein it can identify the objects even if their properties changes during run time.
Check this out-
If QuickTest is unable to find any object that matches the recorded object description, or if it finds more than one object that fits the description, then QuickTest ignores the recorded description, and uses the Smart Identification mechanism to try to identify the object.
While the Smart Identification mechanism is more complex, it is more flexible, and thus, if configured logically, a Smart Identification definition can probably help QuickTest identify an object, if it is present, even when the recorded description fails.
The Smart Identification mechanism uses two types of properties:
Base filter properties—The most fundamental properties of a particular test object class; those whose values cannot be changed without changing the essence of the original object. For example, if a Web link's tag was changed from to any other value, you could no longer call it the same object. Optional filter properties—Other properties that can help identify objects of a particular class as they are unlikely to change on a regular basis, but which can be ignored if they are no longer applicable.
Q. What is a Run-Time Data Table? Where can I find and view this table?
A. In QTP, there is data table used , which is used at runtime.
-In QTP, select the option View->Data tabke.
-This is basically an excel file, which is stored in the folder of the test created, its name is Default.xls by default.

Q. How does Parameterization and Data-Driving relate to each other in QTP?

A. To datadrive we have to parameterize.i.e. we have to make the constant value as parameter, so that in each iteraration(cycle) it takes a value that is supplied in run-time datatable. Through parameterization only we can drive a transaction(action) with different sets of data. You know running the script with the same set of data several times is not suggestable, & it's also of no use.
Q. What is the difference between Call to Action and Copy Action.?
A. Call to Action : The changes made in Call to Action , will be reflected in the orginal action( from where the script is called).But where as in Copy Action , the changes made in the script ,will not effect the original script(Action)