Networks and the Internet

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Across
  1. 2. the customer premises to terminate a dial-up Integrated Services Digital Network (ISDN) line and connect it to a computer or a local area network
  2. 5. a device that is both a transmitter and a receiver, and usually it's in a single device.
  3. 7. security devices used to stop or mitigate unauthorized access to private networks connected to the Internet, especially intranets.
  4. 8. hardware device about the size of an external modem that converts digital data frames from the communications technology used on a local area network, into frames appropriate to a wide-area network and vice versa
Down
  1. 1. creates a single, aggregate network from multiple networks
  2. 3. software used in telecommunications for telecommunications networks that allows data to flow from one discrete network to another.
  3. 4. based on Internet standards, with extensions to reflect the wireless device environment.
  4. 6. connects devices within a network