Ans: Bitmap checkpoints are affected by screen resolution and image size.

Ans: The extension of functional library is .QFL

Ans: Get Ro property is a standard method which is provided by QTP to fetch property values of run time object.

Ans: As per the version QTP 10

• Huge test in QTP can consume lot of memory and increase CPU utilization.
• Since the stores results in HTML file the result folder sometimes become big.

Ans: To connect the database it is important to know
Connection string of a server
Username
Password    
DNS name
Coding of database connectivity command can be done directly or we can make use of SQL query tool provided by QTP.

Ans: The different types of automation frameworks are:

• Linear scripting
• The test library architecture framework
• The data-driven testing framework
• Keyword driven or table driven testing framework

Ans:

• Bitmap checkpoint does a pixel to pixel comparison of an image.
• Image check point does do pixel to pixel comparison but instead of compare image properties like alt text, destination URL. 

Ans: Environmental variables in QTP are of three types they are

• Built in (Read only)
• User defined internal (Read only)
• User defined external (Read/write)
  
  Syntax of environmental variable
  
  Environment. Value (“Name”) = “Trans”
  
  Retrieving the variable name using syntax:
  
  Environment. Value (“Name”) --- This will return name as “Trans”
  Environment. Value (“OS”) ---- This will return system OS

Ans: Step generator helps in enabling the user to add test steps in the scripts. Using step generator, we can add steps to the script without actually recording it.

Ans: This text output value helps to capture the text that is appearing on the application under text during run time.