Ryan, a network administrator within a company, employs SNMP to administer networked devices remotely. For the management of nodes within the network, he relies on MIB, which encompasses formal descriptions of all network objects managed by SNMP. Ryan accesses the contents of MIB through a web browser, either by inputting the IP address and Lseries.mib or by entering the DNS library name and Lseries.mib. Currently, he is retrieving information from an MIB that contains object types for workstations and server services. What type of MIB is accessed by Ryan in the described scenario?