Show:
CIA & AAA
OSI Model
Ports and Protocols
Layers in Action
Scenarios
100

This is the "C" in CIA

Confidentiality

100

This is how many layers are in the OSI Model.

Seven

100

This is the port HTTPS uses.

Port 443

100

This is the process when each OSI layer ADDS its own header to data.

Encapsulation

100

When your Ethernet cable breaks, this OSI layer has failed.

Physical

200

This AAA component ensure that only authorized users can access certain files.

Authorization

200

This OSI layer uses IP address to send data.

Layer 3 Network

200

This protocol translates names like "google.com" into an IP address.

DNS

200

This is the process at the receiving end, when headers are removed from data.

De-encapsulation

200

When you type in "www.netflix.com" and get "site not found", it is likely that this protocol has failed.

DNS

300

This CIA principle ensure information is accurate and not tampered with.

Integrity

300

This layer manages ongoing conversations, like keeping a Zoom call active.

Layer 5 Session

300

This port is used for using outgoing email with SMTP.

Port 25

300

In encapsulation, this is the last layer to add information before the data is converted into bits.

Data Link

300

When two devices on the same network have the same MAC address, this OSI layer is affected.

Data Link

400

This is what the "Accounting" part of AAA tracks.

User actions/logs

400

This layer is responsible for encryption and compression.

Layer 6 Presentation

400

This port and protocol allow for secure remote login to a server.

Port 22, SSH

400

This is what it is called when your message is split into smaller pieces by TCP.

Segmentation

400

When your online game lags because of packet loss, that usually means this OSI layer is struggling.

Transport

500

This is a way Availability might be broken in a school setting.

Wi-Fi goes down, server outage, DDoS attack, etc.

500

This is the entire OSI Model from layer 7 to layer 1.

Application

Presentation

Session

Transport

Network

Data Link

Physical

500

This protocol is better for online gaming.

UDP

500

Ethernet, IP Address, and TCP headers relate to these three OSI Layers.

Data Link (Ethernet), Network (IP), Transport (TCP)

500

When you log into social media with a username and password, this AAA principle has just been applied.

Authentication