How does a client/server environment affect software testing?

How does a client/server environment affect software testing?

-The client/server applications are complex, as dependencies among clients are more.

-The testing needs are extensive as communications, hardware and servers are interdependent.

-Integration and system testing is emphasized during a limited time period.

-Load /stress/performance testing are utilized to determine client / server application limitations.

-Certain commercial testing tools are available to assist performance testing for client / server applications.