SNMP tabular objects

Hi there ,

I have some doubts in snmp tabular obejects as in below points .Can you please clarify .

1.wat is the main differences between scalar and tabular objects .

2.wat is the process to set tabular object and for every tabular object is it mandatory set rowstatus or Entrytype objects first ? (Below is example and problem i faced)

these are the objects in "pingCtlEntry" table and wat is the process to set any object ..just take a example "pingCtlDataFill" any how i am able set as below .

(i have installed netsnmp on myy windows system and mibs placed in C:\mibs path)

pingCtlOwnerIndex
pingCtlTestName
pingCtlTargetAddressType
pingCtlTargetAddress
pingCtlDataSize
pingCtlTimeOut
pingCtlProbeCount
pingCtlAdminStatus
pingCtlDataFill
pingCtlFrequency
pingCtlMaxRows
pingCtlStorageType
pingCtlTrapGeneration
pingCtlTrapProbeFailureFilter
pingCtlTrapTestFailureFilter
pingCtlType
pingCtlDescr
pingCtlSourceAddressType
pingCtlSourceAddres
pingCtlIfIndex
pingCtlByPassRouteTable
pingCtlDSField
pingCtlRowStatus

snmpset -v 2c -Os -m ALL -M C:\mibs -c private 10.128.165.37 pingctlAdminStatus.3.97.98.99.4.66.67.68.71 i "1" pingCtlTargetAddress.3.97.98.99.4.66.67.68.71 s "10.10.10.1" pingCtlRowStatus.3.97.98.99.4.66.67.68.71 i "4"

pingctlAdminStatus."abc"."BCDG"=INTEGER:enabled(1)
pingCtlTargetAddress."abc"."BCDG"=STRING:"10.10.10.1"
pingCtlRowStatus."abc"."BCDG"=INTEGER:createAndGo(4)

snmpset -v 2c -Os -m ALL -M C:\mibs -c private 10.128.165.37 pingCtlDataFill.3.97.98.99.4.66.67.68.71 s "asdfgh"

pingCtlDataFill."abc"."BCDG"=STRING:"asdfgh"

3.wat is index ".3.97.98.99.4.66.67.68.71" signify and how to determine it ?

Thanks in advance .

Regards,
Kumar.