A “client machine” is used to perform tests on {HEAD ~ network products} that may be located within a communications test network using {TAIL ~ a variety} of test cases 
A “ client machine ” is used to perform tests on { HEAD ~ network products } that may be located within a communications test network using { TAIL ~ a variety } of test cases
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH