Interview Questions - Networking

A gateway operates at the upper levels of the OSI model and translates information between two completely different network architectures or data formats.

The degeneration of a signal over distance on a network cable is called attenuation.

The address for a device as it is identified at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network adapter card and is unique.

Bit rate is the number of bits transmitted during one second whereas baud rate refers to the number of signal units per second that are required to represent those bits.
  baud rate = (bit rate / N)
  where N is no-of-bits represented by each signal shift.