2. What is SYSPLEX?

Sysplex is multiple systems connected using sysplex time.

Base sysplex is nothing but more than one system connecting
by sysplex timer and all the dasd are shared in between
those systems. To share the work load we use these type of
environments.

3. What is PARALLEL SYSPLEX?

parallel sysplex is ( base sysplex + coupling facility)
coupling facility = sharing of central memory between two
systems.

4. What is MONOSYSPLEX?

monoplex is only one system we are using for work.