EXPERTECH OUTLINE -
DATA COMM FUNDAMENTALS

Lesson 1:
Telecomm, Datacomm & Convergence

• How / where we communicate
• End-to-end view of information
• Understanding four domains of convergence

Lesson 2:
Communications Models

• Elements of various networks
• The communication problem
• Defining protocol, model, layer
• The OSI Reference Model
• The TCP/IP Model
• A 5-layer working model

Lesson 3:
Physical Layer

• Core functions and applications
• Digitizing voice (sampling, quantizing, companding, encoding per Shannon and Nyquist)

Lesson 4:
Data Link Layer

• Core functions and applications
• Examples (PPP, DOCSIS, Ethernet)

 

Lesson 5:
 Layer 2 Switching

• Packet switching (datagram/VC)
• Ethernet, Frame Relay, ATM

Lesson 6:
Network Layer

• Core functions and applications
• Following a packet
• Routing, address resolution, CoS/QoS

Lesson 7:
Transport Layer

• Core functions and applications
• Application addressing

Lesson 8:
Application Layer

• Core functions and applications
• Service models
• Examples (FTP, NFS, DNS, HTTP, SMTP, IM, IP Telephony, SMTP, Telnet)