A port is an entry point to a network service. A single computer can have many ports, each of which maps to a specific application or process. The port number identifies the particular application or process. For example, port 80 is used for HTTP traffic, and port 443 is used for HTTPS traffic.
TCP (Transmission Control Protocol) is a connection-oriented protocol that guarantees the delivery of data from one endpoint to another endpoint on a network. It provides reliable delivery of data by using acknowledgments and retransmissions if necessary. TCP uses sequence numbers to receive all data packets in order and undisturbed.
UDP (User Datagram Protocol) is a connectionless protocol that does not guarantee the delivery of data from one endpoint to another endpoint on a network. UDP does not use sequence numbers as TCP does; therefore, it does not guarantee delivery of data in order nor guarantee that data will be undisturbed or deliverable by the receiver side if there are any errors during transmission.
                Port monitoring is a means of ensuring that your network,
                infrastructure, and equipment are working properly and
                performing as expected.
The idea is that you identify
                all of the ports in use on your network and then monitor them to
                ensure they are working correctly. 
This is
                particularly important for business networks where uptime is
                critical. If any port goes down then it can cause issues for
                users and applications throughout the network.
              
                Port monitoring allows you to keep an eye on your network and
                detect any problems before they become major issues. For
                example, if a server goes down then it can affect numerous other
                servers and applications on your network. By identifying this
                problem early you can prevent it from becoming more widespread
                than necessary so that you don't experience downtime across your
                entire enterprise or business unit.
This is
                especially important if there are other people who rely on your
                server for their work. For example, if you're running an
                e-commerce site and your web server goes down, then customers
                will be unable to purchase items from your website until it's
                fixed.
              
                Monitoring ports is a key component of keeping your business
                online. If one of these crucial connections goes down, it could
                result in downtime for your entire network.
With
                MonSpark you can
                easily monitor your network ports and keep tabs on the status of
                your servers. This allows you to proactively manage any issues
                before they cause downtime or affect productivity.