Definition. A nucleic acid that contains the genetic instructions used in the development and functioning of all modern living organisms. DNA's genes are expressed, or manifested, through the proteins that its nucleotides produce with the help of RNA.
Intelligent transfer switch. A transfer switch is an electrical switch that switches a load between two sources. Some transfer switches are manual, in that an operator effects the transfer by throwing a switch, while others are automatic and switch when they sense one of the sources has lost or gained power.
A core switch will be used to connect access switches together and to the Internet. Usually (but not always) there will be no end users on a Core Switch.You may have critical servers connected to a core switch.n access switch may only have end user computers attached and a connection (or multiple connections using LACP) to the core switch. You may also have servers connected to theaccess switch, but this may or may not be a good idea.