OSI MODELS
OSI Model on Layer 1
What is PHYSICAL
20 TCP
21 TCP
File Transfer Protocol (FTP)
Phone cable
RJ11
Class A
(address range)
1.0.0.0 to 126.255.255.255
A hub is the
central connecting point - physical star, logical bus topology
OSI Model Layer 3
What is NETWORK
67 TCP and UDP
68 TCP and UDP
Dynamic Host Configuration Protocol (DHCP)
Cat 5
RJ45
Class B
(subnet mask)
255.255.0.0
Bridge is a device that connects
two (or more) media segments on the same subnet, and it filters traffic between both segments based on the MAC address in the frame
Please ____ Not Throw ___ Pizza ____
What is Do, Sausage, Away
Data, Session, Application
143 TCP
Internet Message Access Protocol (IMAP4)
Cat 8
RJ45
Class C
(address range)
192.0.0.0 to 223.255.255.255
A switch is a multi-port bridge that
performs filtering based on MAC addresses and provides additional features not found in a bridge.
Transport Layer
1521 TCP
SQLNet
Class D
(address range)
224.0.0.0 to 239.255.255.255
Wireless Access Point (WAP)
is a hub for a wireless network.
Leonardo painted this un-emotional women
Mona Lisa
5060 TCP and UDP
5061 TCP
Session Initiation Protocol (SIP)
Session Initiation Protocol (SIP) over TLS
Class E
(Subnet Mask)
N/A
Repeater
A repeater receives, regenerates, amplifies, and retransmits the electrical signals it receives