The influenza vaccine is unusual in that most years a different vaccine is made. Because strains of influenza virus that circulate in the community can differ from one season to the next, the vaccine must change to best protect against those different strains.
In VMware, switches are used to establish a connection between the virtual network and the physical network. With ESX and ESXi, two different kinds of switches can be used: standard switches and distributed switches.
A NIC (network interface card) is a piece of hardware that allows you to plug inâor, interface withâ a network cable. NICâs are usually installed as an expansion card or is already built into your motherboard. Hubs are devices that connect all of the segments of a network together. That is, every device on the network (computers, printers) has a cable that is also connected to the hub. Hubs work in such a way that every signal that is received on one port is rebroadcast to every other device.