check standby database

[pareshjavkar]

No.,I have checked latest archive that is generated in prod and checked in standby too,the archive log number is same in both.
(Another thing i made is
alter system switch log file in prod and checked in standby whether it is sync with prod. )

How did you check?

Please provide output of the following query:

On Primary:
SQL> select max(sequence#) from v$log_history;

On Standby:
SQL> select max(sequence#) from v$log_history;

Should be same.