These two expressions always give the same result, assuming both sum and count are integers and the expected result should be double: a. static_cast( sum / count )
b. static_cast( sum ) / count

a. True
b. False

The open systems interconnection (osi) reference model: defines standards for many aspects of computing and communications within a network. is a generic description for how computers use multiple layers of protocol rules to communicate across a network. defines standards for wireless local area network (wlan) communication protocols. details the advantages and disadvantages of various basic network cabling options.