Which of the following statements is the most accurate about the choice of operating systems to
run on a Hadoop cluster?

A.
Linux and Solaris/OpenSolaris are preferable to Windows. Solaris running on SPARC hardware
is the preferred Hadoop slave node configuration.

B.
Linux is preferable to Windows and Solaris/OpenSolaris. Some Linux distributions are intended
for cluster environments more than others.

C.
The choice of operating system isn’t very important for a Hadoop cluster.

D.
Linux is preferable to Windows and Solaris/OpenSolaris, but the choice of Linux distribution is
unimportant when planning a Hadoop cluster.

Explanation:
http://wiki.apache.org/hadoop/FAQ#What_platforms_and_Java_versions_does_Hadoop_run_on.3
F (1.2)