How the Internet Works

Who invented the internetworking protocol?

• Vint Cerf

• Bob Kahn

• Paola

• Microsoft

What is the internet?

• A design philosophy

• A set of protocols

• A computer program

• A network of networks

What is a protocol?

• A design philosophy

• A set of rules and standards for communication

• A method for connecting to the internet

• A unique address for a computer or device

What is an IP address?

• A method for connecting to the internet

• A set of rules and standards for communication

• A unique address for a computer or device on the internet

• A design philosophy

What is the purpose of the domain name system (DNS)?

• To associate domain names with IP addresses

• To provide unique addresses for devices on the internet

• To connect devices to the internet

• To prevent cyberattacks

What is the length of a traditional IPv4 address?

• 32 bits

• 64 bits

• 128 bits

• 256 bits

What is the purpose of the longer IPv6 address format?

• To provide more unique addresses for devices on the internet

• To prevent cyberattacks

• To improve internet speed

• To simplify internet communication

What is DNS spoofing?

• When a hacker changes a DNS server to match a domain name with the wrong IP address

• When a hacker taps into a DNS server and steals information

• When a DNS server becomes overloaded with requests

• When a DNS server is shut down temporarily

How are DNS servers connected?

• In a distributed hierarchy

• In a centralized system

• Through a peer-to-peer network

• Through a mesh network

What is the purpose of the internet protocol (IP)?

• To allow devices to communicate with each other on the internet

• To improve internet speed

• To provide unique addresses for devices on the internet

• To prevent cyberattacks