Transcript PowerPoint Template

Computer Networks
Spring, 2011
Final Review
Outline
Question Styles
Protocols and Key terms of each layer
Integrated (all layers) questions
Slide 2
Question Styles
Ask yourself these questions when
reviewing:
 What is its services (functions) model? (e.g.
router)
 How it works? The procedure?
 What problems (challenges)? How to solve?
or why? (e.g. rdt1.0 – 3.0)
 Calculations ( marked with *)
8 Big Questions totally
Slide 3
Integrated (All Layers)
Packet Switched Network
 the four components of delay*
7 Layers OSI model
 Each layer’s service models
Message Overhead*
 Segment/Datagram/Frame Header*
A day in the life of a web request
Slide 4
Application Layer (Layer-7)
HTTP
DNS
DHCP
Slide 5
Transport Layer (Layer-4)
TCP
 TCP Connection Management
 Flow control
 Congestion control*
UDP
Checksum*
Slide 6
Network Layer (Layer-3)
Router
 packet queuing
IP addressing: CIDR
Distance Vector / RIP*
Link State / OSPF*
Slide 7
Link Layer (Layer – 2)
CSMA/CD
 Minimum packet size*
CSMA/CA (WIFI)
ARP
CRC*
Slide 8
Good Luck!
Slide 9