1. Chapter 1 Describe the layer of the protocol stack.
Explain the services at each layer.
Give an example of a protocol that runs are each layer.
ISPs
tier-n
PoP
Multiplexing
Give formulas for the number of users
Pros and cons
Delay and utilization for statistical multiplexing
Types of delay and basic networking math
E.g., number of bits in a fiber

2. applications TCP vs UDP Very basic knowledge of DNS P2P
Why TCP over UDP
Very basic knowledge of
http
Smtp
ftp
DNS
P2P
Prove the time to transfer a file
Give schedule
Flooding schemes
Hierarchical schemes

3. Transport layer Go-back-N ports TCP Connection establishment
SYN attack
Progression of cwnd
Timing diagrams
Slow start
Timeout
Congestion avoidance
RTO and RTT
Sequence numbers, triple dup ack
Throughput = 1.2 / ( RTT * sqrt(loss prob))

4. routing Prefixes and subnets Link state vs distance vector
Link weights
Dijastra
OSPF
Described how OSPF knows if a link is “up”
Demonstrate how do routers learn about the state of links not attached to it?
Distance vector
Algorithm
Count to infinity
Poison reverse
NAT

5. MAC What does ARP do? Aloha vs slotted aloha CSMA Self-learning
Show give proof of performance describe vulnerability periods
CSMA
p-persistent - why
CSMA/CD details
Exponential backoff,
Collision detection
Self-learning
hubs, vs switches, vs routers