When building a lab to use to practice for CCNA or CCNP, you need Cisco switches. Part of the decision must be how many switches you can afford. And of course you’ll want to know whether adding that ...

These designations spell out the number of contacts and how they behave during operation. For instance, a basic on/off light switch is an example of a single-pole (i.e., one-circuit) single-throw (i.e ...