NT1210Unit3Lab3

NT1210 INTRO TO NETWORKING
UNIT3 LAB3.3 The TCP/IP Model
Mr. Randy Vogl
Gus Perez 19593003
The TCP/IP network model
Exercise 3.3.1 What are the distinct differences between OSI and TCP/IP models?
TCP refers to Transmission Control Protocol.
OSI refers to Open Systems Interconnection.
Model TCP/IP is developed on points toward a model the internet.
TCP/IP has 4 layers.
OSI has 7 layers.
TCP/IP more reliable than OSI
OSI has strict boundaries; TCP/IP does not have very strict boundaries.
TCP/IP follow a horizontal approach.
OSI follows a vertical approach.
In the application layer, TCP/IP uses both session and presentation layer.
OSI uses different session and presentation layers.
TCP/IP developed protocols then model.
OSI developed model then protocol.
TCP/IP offers support for connectionless communication within the network layer.
In the network layer, OSI supports both connectionless and connection-oriented communication.
TCP/IP is protocol dependent.
OSI is protocol independent. http://www.differencebetween.net/technology/internet/difference-between-osi-and-tcp-ip-model/ Read more: Difference between OSI and TCP IP Model | Difference Between | Difference between OSI vs TCP IP Model http://www.differencebetween.net/technology/internet/difference-between-osi-and-tcp-ip-model/#ixzz3f4nyPzTU
TCP/IP model protocols and functions.
Exercise 3.3.2 Identify the layer in which each protocol resides according to the TCP/IP model. Using figure 3.4 from the Lab manual,
Telnet, FTP, SMTP, DNS, RIP, SNMP ------ Application layer5
TCP, UDP --- Transport layer4
IP, IPsec, IGMP, ICMP ---- Network layer3

Exercise 3.3.3 The most common protocols used from this suite are IP, TCP, and UDP. Briefly describe the purpose and functions of each of these.
IP, Internet Protocol, the main TCP/IP network layer3 protocol. IP defines addressing (IP address), considered logical because it works independently from the physical, and routing, which defines how to forward packets from