TCP/IP Model

Question 1

Transmission Control Protocol(TCP)

Answer 1

internet communication protocol that allows two devices to form a connection and stream data

• Protocol includes a set of instructions to organize data, so it can be sent across a network.
• Establishes a connection between two devices and makes sure that packets reach their appropriate destination.

Question 2

Internet protocol(IP)

Answer 2

a set of standards used for routing and address in data packets as they travel between devices on a network

Question 3

Port

Answer 3

A software based location that organizes the sending and receiving of data between devices on a network

• Divide network traffic into segments based on the service they will perform between two devices
• Ports divide network traffic into segments based on the service they will perform between two devices.
• Computers sending and receiving these data segments know how to prioritize and process these segments based on their port number.

Question 4

What is the TCP/IP Model

Answer 4

A framework used to visualize how data is organized and transmitted across the network

Question 5

What is the 1st layer of the TCP/IP model

Answer 5

Network access layer (Data link layer)

• Creation of data packets and their transmission across a network.
• Includes hardware devices connected to physical cables and switches that direct data to its destination.
• Hubs, modems, cables, and wiring
• Address resolution protocol (ARP) is part of the network access layer. Since MAC addresses are used to identify hosts on the same physical network, ARP is needed to map IP addresses to MAC addresses for local network communication.

Question 6

What is the 2nd layer of the TCP/IP model

Answer 6

Internet layer(network Layer)

• IP addresses are attached to data packets to indicate the location of the sender and receiver
• Focuses on how networks connect to each other

EX - data packets containing information that determine whether they will stay on the LAN or will be sent to a remote network, like the internet.

Question 7

What is the 3rd layer of the TCP/IP model

Answer 7

Transport layer
- Control the flow of traffic across a network
- Permit or deny communication with other devices and include information about the status of the connection
- Include error control, which ensures data is flowing smoothly across the network.
- TCP and UDP are the two transport protocols that occur at this layer.

Question 8

What is the 4th layer of the TCP/IP model

Answer 8

Application layer
determine how the data packets will interact with receiving devices.
Functions that are organized at the application layer include file transfers and email services.

Question 9

Transmission Control Protocol (TCP)

Question 10

User Datagram Protocol (UDP)