You are a network technician for a small corporate network that supports 1000 Mbps (Gigabit) Ethernet. The employee in Office 1 says his network connection has gone down frequently over the past few days. He replaced his Ethernet cable, but the connection problem has continued. Now his network connection is either down or very slow at all times. He wants you to install a new 1000 Mbps Ethernet network card in his workstation to see if that solves the problem.