=========================
Week 14 Notes for CST8214
=========================
- Ian! D. Allen - idallen@idallen.ca - www.idallen.com

Class Notes http://teaching.idallen.com/cst8214/07f/
  text_errata.txt     Errors and updates for the course textbook

-----------------------------------------------------------------------------
Chapter 12 - based on textbook and slides

Q: What was the redundancy design principle of the DARPANET?

Q: What was the design purpose of the ISO Open Systems Interconnect
   Reference Model?  (What problem was being addressed?)

Q: What commercial systems use the features of the above ISO OSI RM?

Q: How many layers does the ISO OSI Reference Model have?
   Don't study or memorize the layers yet.  You'll do that in later terms.

Q: Does the ISO OSI Reference Model specify implementation details?

Q: What network protocol is the de facto global communications standard?

Q: Expand these acronyms: TCP, IP

Q: How many layers does the book say are in the TCP/IP protocol stack?
   What are the names of the bottom two layers?
   (NOTE: Most other books say four or five layers.  See Wikipedia.)

Q: True/False TCP/IP can only be used with one type of network.

Q: What is the function of the IP layer in the TCP/IP stack?
   (What does it do with TCP packets?)

Q: What are the "protocol data units" called at the IP layer?

Q: What is attached to each datagram at the IP layer?

Q: True/False Datagrams sent by the IP layer are reliable and are
   guaranteed to reach their destination.

Q: True/False IP datagrams can flow from A to B without human intervention.

Q: True/False If a break happens in the Internet, packet flow routes
   around the damage.

Q: What are some limitations of the current IP Version 4 (IPv4)?

Q: How many bits are used for an IPv4 address?

Q: How are the bits of an IPv4 address divided up and written as numbers?

Q: What is wrong with this supposed IPv4 address: 1.2.3.256

Q: Write this dotted IPv4 address in hexadecimal (32 bits): 1.2.3.4

Q: Write this 32-bit hex number as a dotted IP address: 0xA1A2A3A4

Q: The largest IP datagram that can be sent is approx. 65,535 bytes.
   How many bits are needed for this length field in the IP header?

Q: What TCP/IP protocol layer is the "consumer of IP services"?

Q: True/False TCP sets up a "connection" and ensures that packets lost
   by the IP layer are retransmitted.  TCP is a "reliable" data stream;
   everything is in proper sequence and nothing is duplicated.

Q: How many bits are used for an IPv6 address?

Q: Expand the acronym and define these terms: LAN, WAN

Q: Describe and give examples of:
   guided transmission media, unguided transmission media

Q: Define these terms:
   signal-to-noise, bandwidth (both analog and digital)

Q: Draw a diagram of a coaxial cable, naming the important features.

Q: What type of cabling is used for most local area networks today?

Q: What are the physical and bandwidth differences between Category 5
   twisted pair cabling and higher categories (e.g. Catergory 6)?  

Q: True/False Optical fibre cabling has approximately the same
   bandwidth as twisted pair and/or coax cable.

Q: Describe some advantages that optical transmission media have over
   copper wires such as coax and twisted-pair.

Q: What are the disadvantages of optical fibre cabling?

Q: Give some examples of "unguided data communications".

Q: What is "Bluetooth" used for?

Q: Expand the acronym and define these terms: WLAN, WAP, NIC, MAC

Q: What part of a MAC address identifies the card manufacturer?

Q: True/False Except for programmable cards, every network card on the
   planet has a unique MAC burned into it.

Q: Describe the difference in operation between a Hub and a Switch.

Q: True/False Standard telephone lines are built to carry digital signals.

Q: What is the purpose of a "modem"?  What does "modem" stand for?