"The most complex network system I have supported was for a global manufacturing company. My team and I supported sites in seven different countries located on three continents. The systems included LANs, WANs, and individual remote users connecting to the company network via the Internet. Issues we dealt with included connectivity, access to local service providers, variations in power and electrical systems, the need to support systems both locally and remotely, and the challenges of working across time zones and with users who spoke different native languages. We developed specific systems and processes to address all of these and maintained a five-nines network uptime across the entire system."