1. Networking CS 3470, Section 1 Sarah Diesburg
Exam Review
Networking
CS 3470, Section 1
Sarah Diesburg

2. Coverage Covers programming project 1 and homeworks 2 through 3.
Multiple choice, short answer, and problem solving questions

3. Introduction and Foundations
Definitions
Circuit-switched network
Packet-switched network
Network
Gateway
Switch

4. Introduction and Foundations
Definitions
Addressing
Unicast, multicast, broadcast
Multiplexing

5. Introduction and Foundations
Short answers
Compare and contrast types of multiplexing
Synchronous Time-Division Multiplexing (STDM)
Frequency-Division Multiplexing (FDM)
Statistical Multiplexing

6. Network Performance Definitions Bandwidth Latency
Length and width of a bit
Delay x Bandwidth
Return Trip Time (RTT)
Jitter

7. Network Performance Short answers Find the latency Find the RTT
Find the Delay x Bandwidth

8. Internet Architecture
Definitions
Protocols and Encapsulation
Fragmentation/defragmentation

9. Internet Architecture
Short answers
List Internet Model layers
List ISO/OSI Model layers
Know what the model layers are responsible for

10. Services Short answers What are well-known port numbers?
What ports do protocols SSH, HTTP, and SMTP use?
What are SSH, HTTP, and SMTP?

11. Link Layer Encoding/Decoding
Definitions
Encode
Decode
Network adaptors
Baseline wander
Clock recovery
Bit stuffing
Frame

12. Link Layer Encoding/Decoding
Short answers
Be able to chart NRZ, NRZI, Manchester
Be able to explain the purpose behind 4B/5B
Be able to explain why a clock is necessary

13. Error Detection Definitions 2-D Checks Internet Checksums
Cyclic Redundancy Check

14. Error Detection
Short answers
CRC
2-D Checks

15. Reliability
Definitions
Acknowledgement (ACK)
Timeouts

16. Reliability
Short answers
Stop-and-wait
Sliding window

17. Core Ethernet and Wireless
Definitions
CSMA/CD and CSMA/CA
Repeater
Collision domain
MAC address
Runt frame
Polling
Token Passing

18. Core Ethernet and Wireless
Short answers
When will an Ethernet adapter accept a frame? (3 conditions)
Describe the hidden terminal problem

19. Network Programming
Definitions
Socket
Client-Server Model
Port

20. Network Programming Short answers
Control flow of simplex client and server

21. Be able to fill this in… Server socket() bind() Well-known port Client
listen()
socket()
accept()
blocks until connection from client
connect()
Connection establishment
fgets()
recv()
Data(request)
process request
fputs()
send()

22. Be able to explain what each thing does…
Server
socket()
bind()
Well-known port
Client
listen()
socket()
accept()
blocks until connection from client
connect()
Connection establishment
fgets()
recv()
Data(request)
process request
fputs()
send()