1. Final Exam Review Slides INFS 4900/5900 Fall 2015

2. Final Exam Information  Chapters 1 – 11 & Subnetting  50 Multiple Choice Questions  6 Short Answer Questions  Monday  12/07/15, 6:00 – 8:00 p.m.  BAS S137E (lab)  Tuesday/Thursday  12/08/15, 3:30 – 5:30 p.m.  BAS S137E (lab)

3. Final Exam Study Guide  What are the layers of the OSI model? What happens at each layer / What are the functions of each layer? How are the layers numbered and ordered?  How does the OSI model differ from the Internet model?  What protocols / standards are used at the different layers of the Internet model?

4. Final Exam Study Guide  What is an application architecture?  What are the four functions of an application program? What does each function do?  How are the application program functions spread across devices in 2-tier and 3-tier architectures?  What is a thin client?  What’s the difference between 2 and 3-tier email message transfer?

5. Final Exam Study Guide  What are the two different types of data seen in communications networks?  What is the definition of a multi-point circuit? A dedicated circuit?  What are half-duplex, full-duplex, and simplex transmissions?  What is a multiplexor?  What is multiplexing?  What are FDM, TDM, and WDM?  What is ASCII?  What is serial transmission?

6. Final Exam Study Guide  What are the characteristics of as sound wave? How are they measured?  How many different levels (frequency, phase, amplitude) do you need to define when sending 3 bits at a time using a modulation technique? What about 4 bits?  What is a codec?  What is ARQ? What are the two types and how do they work?  What is a NAK?  What is a sequence number?  What is the size of an IPv6 address?

7. Final Exam Study Guide  What is sent to computers on a subnet when there is a need to translate a network layer address into a data link layer address?  What is ARP?  Are the circuits connected to a switch dedicated or shared?  What is the building block design? What are the steps?

8. Final Exam Study Guide  What is a logical topology?  What is media access control?  What is switched Ethernet? What topologies (physical and logical) does it use?  What is 802.3?  What frequencies are used by 802.11n?  What types of hardware devices are used to connect networks?  What is a routed backbone? What information does it use to move packets?  What is a VLAN?  What equipment is required to connect to a T-carrier service?

9. Final Exam Study Guide  What are options for configuring the architecture of a dedicated WAN? What are the advantages/disadvantages of each?  What is the speed of a T-1?  How many 64kbps channels are there in a T- 1?  What is a packet switched WAN service?  What is peering?  What is a point-of-presence?

10. Final Exam Study Guide  What equipment is needed at the customer location to connect to DSL broadband service?  What separates traditional voice from data in a DSL connection?  What type of multiplexing does DSL use?  What is a DSLAM? Where is it located?  What is the speed of a T-1?  What is the speed of a OC-1?  What is encryption?  What are the two parts of an encryption system?  How is asymmetric encryption used to send an encrypted message?  What is a digital signature?

11. Final Exam Study Guide  How do you subnet a class c address?  Be able to determine the following  Subnet mask (new & old)  # of hosts per network  # of networks you can create based on # of bits borrowed  The broadcast address of each subnet