Network Monitoring is a crucial IT process where the performance of a network is constantly observed, analyzed, and managed to maintain its optimal functioning. Coursera's network monitoring catalogue teaches you about the fundamental principles of network performance monitoring, troubleshooting, and administration. You'll learn everything from understanding the infrastructure of different network types, implementing proper network configurations, using network monitoring tools to identify issues, to ensuring data security and system efficiency. By mastering tools and techniques such as SNMP, NetFlow, packet sniffing, and performance analysis, you will be equipped to uphold high network performance and address any potential network issues proactively.