多项选择题 When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）

多项选择题 On a Cisco network, which of the following modes of flow control are commonly used to mitigate the effects of busy data networks?（）

多项选择题 After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?（）