My crossword

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Across
  1. 1. a communications protocol that is used for wireless data access through most mobile wireless networks.
  2. 3. Networking hardware that connects devices on a computer network.
  3. 5. Device that connects two or more packet-switched networks or subnetworks.
  4. 6. a network security device that monitors and filters incoming and outgoing network traffic.
Down
  1. 1. a computer system capable of delivering web content to end users over the internet via a web browser.
  2. 2. a computer hardware component that allows a computer to connect to a network. NICs may be used for both wired and wireless connections.
  3. 4. a hardware device that connects a computer or router to a broadband network.