This table contains count information for each DNS class

and type value known to the server. The index allows management software to to create indices to the table to get the specific information desired, e.g., number of queries over UDP for records with type value `A' which came to this server. In order to prevent an uncontrolled expansion of rows in the table; if dnsServCounterRequests is 0 and dnsServCounterResponses is 0, then the row does not exist and `no such' is returned when the agent is queried for such instances.