The devices that usually connect two or more lans are the switch, hub, and ____.

The highest-level dns servers are called ________.

Traditional switches operate at the ____ layer of the osi model.

There are 13 _____ name servers.

The ethernet length field gives the length of the ________.

Statistical time division multiplexing is sometimes called ____ time division multiplexing.

Full form of PPPoE?

What is the full form of DSL?

Which protocol is connection oriented?

Which type of network uses dual fibre-optic rings?

Which cable used for RJ11 connectors?