What is Cygwin?
A . Cygwin is a free C++ compiler that runs on Windows
B . Cygwin is a free Unix subsystem that runs on top of Windows
C . Cygwin is a free Windows subsystem that runs on top of Linux
D . Cygwin is a X Windows GUI subsytem that runs on top of Linux GNOME environment
Answer: B
Explanation:
Cygwin is a Linux-like environment for Windows. It consists of two parts: A DLL (cygwin1.dll) which acts as a Linux API emulation layer providing substantial Linux API functionality
A collection of tools which provide Linux look and feel The Cygwin DLL works with all non-beta, non "release candidate", ix86 32 bit versions of Windows since Windows 95, with the exception of Windows CE.