Network hardware

• A device that connnects together different network and forwards data packets along a network

  Router
• A device that filters and forwards data packets within a single network . This creates a direct connection between devices


  Switch
• A card that a hardware device internal to a computer that allows a computer to connects to a network 


  Network interface card (NIC)
• A cable that is transmission media that consists of bunch of glass or plastic threads


  Fibre optic cable
• Which network devices connects together


  Both LAN or WAN
• Which network devices determine that correct destination for data 


  Switch and router
• Which network device connect nodes into LAN

  Switch
• Which network devices uses MAC addresses


  LAN or WAN
• Which netwok devices learns the MAC addresses of its connected when data is sent

  Switch
• Which network device connects LANs over different geographical WAN


  Router
• Which network devuce uses IP addresses

  Router
• Which of these factores affects network performace

  Number of devices
• NNIC stands for


  Network interface card
• Copper twisted pair 


  Is transmission media
• In a client server model


  There is a hierarchy of devices
• In peer to peer model


  All devices are equal
• In Client server network 


  All devices request resources
• In peer to peer network. 


  All devices share resources
• Ethernet is 


  A standard for wired communication
• Symmetric encryption 


  Uses the same key for encryption and decryption
• TCP stands for


  Transmission control protocol
• IMTP

  Is not a protocol
• Email protocol 


  SMTP
• File transfer protocol


  FTP
• Protocol for accessing websites

  HTTPS
• Email protocol


  IMAP