Final answer:
The transport layer protocols refer to port numbers to function. Transport layer protocols use port numbers to function correctly, facilitating the delivery of information to the right application on a device. The correct answer is C.
Step-by-step explanation:
The transport layer protocols refer to port numbers to function. Port numbers are used to identify specific processes or services on a device.
For example, when you visit a website, your web browser uses the Hypertext Transfer Protocol (HTTP) and communicates through port number 80. If you are sending an email, the Simple Mail Transfer Protocol (SMTP) uses port number 25.
The transport layer protocols rely on port numbers to direct incoming traffic to the correct application or service running on a device.
Transport layer protocols use port numbers to function correctly, facilitating the delivery of information to the right application on a device.
Transport layer protocols use a specific type of addressing information to function properly and that is the port number. This is different from other types of addressing such as MAC addresses, which operate at the data link layer, or IP addresses, which are used at the network layer. The transport layer, which includes protocols like TCP and UDP, relies on port numbers to deliver information to the correct application or process on a device.
Port numbers act as communication endpoints for the transport layer, allowing it to distinguish between multiple services or applications running on the same device. For example, web traffic generally uses port 80 for HTTP or port 443 for HTTPS, while email might use port 25 for SMTP or port 110 for POP3. This layering and distinction between port numbers enable the correct functioning of network services.