According to the segment, which of the following should graphic designers maintain? Broken design technology
Constant contact with denied cold call receivers
Records of interactions with clients
Old versions of design software

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.