Ans: Returns a zero based, one dimensional array containing a specified number of substrings.

Ans: Only sets focus on the current sheet.

Ans: No. You can work with only single instance of QTP on the same machine. But QTP itself can work on multiple instances of the Application under Test (AUT). Ex:  QTP can handle multiple IE browser windows.

Ans: A property is a named attribute of an object. Properties define the characteristics of an object such as Size, Color etc. or sometimes the way in which it behaves.

A method is an action that can be performed on objects.

For example, a dog is an object. Its properties might include long white hair, blue eyes, 3 pounds weight etc. Its methods might be move, jump, play, breath etc.

Ans:

• Both are for handling Error events, Recovery Scenario is a QTP Tool feature, whereas "On Error Resume Next" is a VB Script feature
   
• “On Error Resume Next" is used when we are sure about the step where the error can occur. Recovery Scenario can be used to handle unexpected event or error.

Ans: By using ‘Timer’ function we can measure transaction times.

Ans:

• Title property for Browser
• Title property for Page.

Ans: Two folders and six files.

Ans:

• It supports MS Windows operating environment only
• It doesn’t support CLI Applications (Command line interface)
• It supports IE only for generating scripts but it does not support Mozilla and other browsers. For executing tests it supports Mozilla like other browsers.
• It has limited support for web services testing.

Ans:
QTP Test / Test Script(.mts){.mts=module/mercury test script}

• Local Repository file (.mtr){.mtr=module/mercury test repository}
• Shared repository files(.tsr){Test shared repository}
• Library files (.vbs)
• Environmental files (.xml)
• Test batch file (.mtb){module test batch}
• QTP result file (xml) optional: pdf, doc, xml-for reporting
• Recovery scenario file (.qrs){quick recovery scenario}