Exam Topics - CS342 - Exam #1

The exam is open book, open notes, open computer, but not open neighbor/Internet.

History of Networking, Internet

Layered Model

• Why there are layers and what each does
• Physical
• Data Link
• Addressing (MAC address)
• Network / IP
• Addressing (IP address)
• Routing
• Transport / TCP / UDP
• Addressing (ports)
• Segmentation
• Ordered Delivery
• Flow Control
• Application
• Relation to the Network Game (might use as an example)

Protocols and Apps

• Importance of standards
• Workings of ping
• Workings of traceroute
• Workings of SMTP
• HTTP protocol
• Connection Based vs. Connectionless
• TCP vs. UDP

Network Programming

• Be able to read/write code in Java
• Client, Server, UDP/TCP, need for threads

DNS

• Hierarchical structure
• How authority is delegated to subdomains
• Process of resolving a name
• Techniques to make DNS more efficient

Transport

• Differences between UDP and TCP
• Principles of reliable data transfer up to rdt3.0
• Go Back N and Selective Repeat
• Be able to generate sequence diagrams (e.g. what happens if ACK lost using Go Back n)