Networking Review

What is a group of computers that can communicate with each other?

• An IP address

• A hub

• A network

• A router

Who is currently in charge of managing IP addresses across the internet?

• ICANN

• ARPANET

• DHCP

• Reed and Monique

How can you view your private IP address?

• whatismyip.com

• ipconfig

• ping

• ifconfig

Which of these is not a valid private IPv4 address range?

• 10.0.0.0 - 10.255.255.255

• 172.16.0.0 - 172.31.255.255

• 192.168.0.0 - 192.168.255.255

• 155.0.0.0 - 155.0.255.255

What is a host on the internet? (Choose the *best* answer choice)

• A device that asks for content

• Any kind of computer on a network

• A host that provides content

• A web server

How many possible IPv4 addresses are there?

• 2³²

• 2¹²⁸

• 2⁸

• 2⁴

What is used by most networks to auto-assign IP addresses to most clients?

• DNS

• ipconfig

• DHCP

• NAT

What cable do you use in packet tracer to connect a computer to a switch?

• There is no cable, it's wireless

• Fiber optic

• Copper cross-over

• Copper straight-through

What does DNS do?

• Auto-assigns IP addresses to most clients

• Substitutes a public IP address for one or many private IP addresses that are on your local network

• It is the primary method all devices currently use to communicate

• Translates between IP addresses and URLs

How does data move through the internet?

• A packet is sent to the "central" web server that decides the best route for the packet to take

• Packets *randomly* bounce around until they reach the correct destination

• A packet is forwarded from router to router until it arrives at the web server

• Packets move around using wireless signals