This read-only enumerated value reports yes(1) or no(2) to indicate whether the client supports standard MIB-2 objects. An administrator checks it before attempting to poll a client for MIB-2 data, to avoid querying objects the client does not implement. For example, when adding a new client type to monitoring, the administrator would check clntSupportMibII first to decide whether standard interface and system counters can be collected from it.