Chapter 2: Lessons 8-12

How many unique IP addresses could be made in a fixed-length IP address system using 6 bits?

64 users

The Internet Engineering Task Force (IETF) defines the protocols and standards for how the Internet works. The members of the IETF are:

A loosely organized collection of citizens and engineers who communicate mostly by email.

Which of the following is NOT true about packets?

A message sent across the Internet can always be contained in a single packet

IPv4 packet

A packet of data that uses 32 bit addresses

Which two of the following statements are true about routing on the Internet?

A packet travelling between two computers on the Internet may be rerouted many times along the way; A packet contains addressing information to allow routers to decide how best to forward along that packet towards its destination.

What feature of DNS and IP allow the internet to scale?

Hierarchy

What is an RFC?

Request for Comments

Pick Two: Pick the two statements about packets and routing on the Internet which are true.

TCP must account for the fact that packets may not arrive at a destination computer in the intended order; TCP ensures messages can be reliably transmitted across the Internet

In the Internet Simulator, your router knows to send your message to a different router because:

The first 4 bits of the address specify the router number that your friend is on.

If the post office delivered mail exactly like routers deliver messages on the internet, which 2 of the following statements would be true?

The mailman would sometimes take a different path to deliver each letter to your home; Letters would be written on the outside of envelopes for all to read instead of letters put inside envelopes.

the internet protocol (IP)

The required structure of a packet to be sent on the internet

A single central register of IP addresses and names (a DNS style system) is an efficient means of translating human readable names to IP addresses. Which of the following is NOT solved by DNS?

There are too few IP addresses to meet the current demand.

Which of the following information is not necessary in your protocol to play battleship?

Time of Day

packets

a chunk of information that gets sent on the internet

protocol

a well-known set of rules and standards used to communicate

Choose the two best answers to complete the sentence: If I understand how the internet works then I will be able to:

make informed choices to support or oppose decisions my government makes about access to the internet; make informed choices about my privacy on the internet.

To improve communication in playing battleship on the Internet Simulator your group invented a(n):

protocol