2. When running a scan on your computer, you find that a session has been established with a host at the address 208.85.40.44:80. Which Application layer protocol is in use for this session? What command-line utility might you use to determine which computer is the host?

The Application layer protocol in use for this session is HTTP (Hypertext Transfer Protocol).

To determine which computer is the host at the given IP address, you can use the command-line utility called "ping" or "traceroute". The ping command can be used to send a small packet to the IP address and receive a response, confirming the presence of the host. The traceroute command can be used to trace the route taken by packets to reach the host and determine the IP addresses of intermediate routers or hops along the way.

To determine the application layer protocol in use for a session established with a specific host, you can look at the port number. In this case, the port number is 80. Port number 80 is commonly used for the Hypertext Transfer Protocol (HTTP) which is an application layer protocol used for transmitting web pages and other data over the internet.

To determine which computer is the host, you can use the command-line utility called "ping" along with the IP address of the host. The "ping" utility sends a small packet of data to the specified IP address and waits for a response. Open the command prompt or terminal and type the following command:

ping 208.85.40.44

This will send a ping request to the specified IP address. If you receive a response, it means that the host is reachable and you can determine its computer name if provided in the response.