Answers For Great .Net Developer (1)

What Great .NET Developers Ought To Know

• Everyone who writes code
  • Describe the difference between a Thread and a Process?
  A Process is a collection of threads sharing same virtual memory.
  A Thread always runs in a thread context. While a process must have at least one thread.
  • What is a Windows Service and how does its lifecycle differ from a "standard" EXE?
  Window service can automatically start when system starts.
  Standard exe has to been activated manually by user.
  • What is the maximum amount of memory any single process on Windows can address? Is this different than the maximum virtual memory for the system? How would this affect a system design?
  Maximum virtual memory of 32 bit is 2 ^32=4 GB(0-2GB, available for application, 2GB-4GB available for system)
  • What is the difference between an EXE and a DLL?
  EXE file is an executable file including entry point to start (like main () in C/C++, static void main() in .Net)
  o DLL is library file including some functions to be called by other components.
  • What is strong-typing versus weak-typing? Which is preferred? Why?
  String-typing means the data type checking of class or data type conversion is done in compile time while that of weak-typing is done in running time.
  o It depends on what kind of projects. For Script quick stuff, using weak-typing(later binding , interpreted language).For compiled based language, using string-typing.
  • Corillian's product is a "Component Container." Name at least 3 component containers that ship now with the Windows Server Family.
  Web forms and window forms are visual component container including :
   System.Web.UI.Page
   System.Windows.Forms.Form
   System.ComponentModel.Container
  • What is a PID? How is it useful when troubleshooting a system?
  Process identifier, can use it to kill the process in task manager of system.
  • How many processes can listen on a single TCP/IP port?
  One.
  • What is the GAC? What problem does it solve?
  Global assembly cache.
  Problems solved :
   DLL Hell
   Multiple Version
   Security