This week's book giveaways are in the Refactoring and Agile forums. We're giving away four copies each of Re-engineering Legacy Software and Docker in Action and have the authors on-line! See this thread and this one for details.
C(marked ) rd2.forward(req , res) and rd4.forward(req , res ) may forward to same resource. ------------------ I disagree as one is relative URL to present resource another relative to context( starting with /) so option c is may not be correct in all the situation.