Structure of internet

• What is the internet?

  A network of inter-connected networks
• What is the world wide web?

  A collection of resources accessed via the internet
• What is the internet backbone?

  A set of dedicated connections that connects several large networks
• What are IPv4 addresses made up of?

  4 sets of 8 bits
• What is the purpose of URLs?

  The specify the means of accessing a resource and its location across a network
• What are DNS servers?

  They are dedicated computers with an index of domain names and their corresponding IP address
• Several DNS servers work together to catalogue every web domain
• What do Internet registers do and how many are there?

  They are responsible for allocating IP addresses to specific domain names.

  There are 5 global internet registries
• What are the names of the internet registries?

  1. AFRINIC - Africa
  2. ARIN - North America
  3. APNIC - East Asia and pacific
  4. LACNIC - Latin America
  5. RIPE NCC - Europe and Asia and Middle East
• What do internet registries do?

  They work together to maintain a database of address assignments that ensures IP addresses and domain names are unique.