OSI Model Layer
Traffic Service
Protocol Function
Port Numbers
Definitions
100

The upper layer of the OSI model has how many layers?

What is three?

100

Uses sequencing and acknowledgement to send transmissions safely over the internet.

What is TCP?

100

Transfers files over the network safely.

What is FTP?

100

The port for Hyper Text Transfer Protocol.

What is 80?

100

A 16-bit integer that assists with a connection.

What is a port?

200

The layers of the lower OSI model.

What is network, transport, data link and physical?

200

Allows large streams from several different IP addresses to be sent over the internet.

What is SCMP?

200

Allows for the reading of secure information over the internet.

What is HTTPS?

200

The port for Internet Control Message Protocol (ICMP).

What is 1?

200

Provides the location of the host participating in a network.

What is an IP address?

300

The main form of data is the packet.

What is the network layer?

300

The network service to be used if a message needs to be delivered as quickly as possible, and accuracy can be checked later.

What is UDP?

300

Correlates the domain name with the site address.

What is DNS?

300

The port for File Transfer Protocol. (FTP)

What is 20?

300

The endpoint of a two-way network connection.

What is a socket?

400

The main form of data is the bit.

What is the physical layer?

400

The service that can be added to make the speedy service more reliable.

What is RUDP?

400

Allows a virtual private network to be established.

What is Point to Point Tunneling Protocol?

400

The port for Domain Name System (DNS).

What is 53?

400

A service that has a different function than TCP and UDP.

What is ICMP?

500

The main form of data is the frame.

What is data link?

500

The common service that has the most fields in the header.

What is TCP?

500

Allows for the proper formatting and encryption of e-mail.

What is Secure/Multipart Internet Mail Extensions (S/MIME)?

500

The port for point to point tunneling protocol.

What is 1723?

500

The receptacle in the back of a router for a network cable.

What is a port?