How to turn off this audit?

Question

I see lots of auditing records getting generated with action# 85, i looked up, it is truncate table.
how can i turn it off?
the following are the current auditing option from this database. which one is generating this action# 85.
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AUDIT ADMINISTER ANY SQL TUNING SET BY ACCESS ;
AUDIT ADMINISTER DATABASE TRIGGER BY ACCESS ;
AUDIT ADMINISTER SQL MANAGEMENT OBJECT BY ACCESS ;
AUDIT ADMINISTER SQL TUNING SET BY ACCESS ;
AUDIT ADVISOR BY ACCESS ;
AUDIT ALTER ANY ASSEMBLY BY ACCESS ;
AUDIT ALTER ANY CLUSTER BY ACCESS ;
AUDIT ALTER ANY CUBE BY ACCESS ;
AUDIT ALTER ANY CUBE DIMENSION BY ACCESS ;
AUDIT ALTER ANY DIMENSION BY ACCESS ;
AUDIT ALTER ANY EDITION BY ACCESS ;
AUDIT ALTER ANY EVALUATION CONTEXT BY ACCESS ;
AUDIT ALTER ANY INDEX BY ACCESS ;
AUDIT ALTER ANY INDEXTYPE BY ACCESS ;
AUDIT ALTER ANY LIBRARY BY ACCESS ;
AUDIT ALTER ANY MATERIALIZED VIEW BY ACCESS ;
AUDIT ALTER ANY MINING MODEL BY ACCESS ;
AUDIT ALTER ANY OPERATOR BY ACCESS ;
AUDIT ALTER ANY OUTLINE BY ACCESS ;
AUDIT ALTER ANY PROCEDURE BY ACCESS ;
AUDIT ALTER ANY ROLE BY ACCESS ;
AUDIT ALTER ANY RULE BY ACCESS ;
AUDIT ALTER ANY RULE SET BY ACCESS ;
AUDIT ALTER ANY SEQUENCE BY ACCESS ;
AUDIT ALTER ANY SQL PROFILE BY ACCESS ;
AUDIT ALTER ANY TABLE BY ACCESS ;
AUDIT ALTER ANY TRIGGER BY ACCESS ;
AUDIT ALTER ANY TYPE BY ACCESS ;
AUDIT ALTER DATABASE BY ACCESS ;
AUDIT ALTER DATABASE LINK BY ACCESS ;
AUDIT ALTER JAVA CLASS BY ACCESS ;
AUDIT ALTER JAVA RESOURCE BY ACCESS ;
AUDIT ALTER JAVA SOURCE BY ACCESS ;
AUDIT ALTER MINING MODEL BY ACCESS ;
AUDIT ALTER PROFILE BY ACCESS ;
AUDIT ALTER PUBLIC DATABASE LINK BY ACCESS ;
AUDIT ALTER RESOURCE COST BY ACCESS ;
AUDIT ALTER ROLLBACK SEGMENT BY ACCESS ;
AUDIT ALTER SEQUENCE BY ACCESS ;
AUDIT ALTER SESSION BY ACCESS ;
AUDIT ALTER SYSTEM BY ACCESS ;
AUDIT ALTER TABLE BY ACCESS ;
AUDIT ALTER TABLESPACE BY ACCESS ;
AUDIT ALTER USER BY ACCESS ;
AUDIT ANALYZE ANY BY ACCESS ;
AUDIT AUDIT ANY BY ACCESS ;
AUDIT AUDIT SYSTEM BY ACCESS ;
AUDIT BACKUP ANY TABLE BY ACCESS ;
AUDIT BECOME USER BY ACCESS ;
AUDIT CHANGE NOTIFICATION BY ACCESS ;
AUDIT CLUSTER BY ACCESS ;
AUDIT COMMENT ANY MINING MODEL BY ACCESS ;
AUDIT COMMENT ANY TABLE BY ACCESS ;
AUDIT COMMENT EDITION BY ACCESS ;
AUDIT COMMENT MINING MODEL BY ACCESS ;
AUDIT COMMENT TABLE BY ACCESS ;
AUDIT CONTEXT BY ACCESS ;
AUDIT CREATE ANY ASSEMBLY BY ACCESS ;
AUDIT CREATE ANY CLUSTER BY ACCESS ;
AUDIT CREATE ANY CONTEXT BY ACCESS ;
AUDIT CREATE ANY CUBE BY ACCESS ;
AUDIT CREATE ANY CUBE BUILD PROCESS BY ACCESS ;
AUDIT CREATE ANY CUBE DIMENSION BY ACCESS ;
AUDIT CREATE ANY DIMENSION BY ACCESS ;
AUDIT CREATE ANY DIRECTORY BY ACCESS ;
AUDIT CREATE ANY EDITION BY ACCESS ;
AUDIT CREATE ANY EVALUATION CONTEXT BY ACCESS ;
AUDIT CREATE ANY INDEX BY ACCESS ;
AUDIT CREATE ANY INDEXTYPE BY ACCESS ;
AUDIT CREATE ANY JOB BY ACCESS ;
AUDIT CREATE ANY LIBRARY BY ACCESS ;
AUDIT CREATE ANY MATERIALIZED VIEW BY ACCESS ;
AUDIT CREATE ANY MEASURE FOLDER BY ACCESS ;
AUDIT CREATE ANY MINING MODEL BY ACCESS ;
AUDIT CREATE ANY OPERATOR BY ACCESS ;
AUDIT CREATE ANY OUTLINE BY ACCESS ;
AUDIT CREATE ANY PROCEDURE BY ACCESS ;
AUDIT CREATE ANY RULE BY ACCESS ;
AUDIT CREATE ANY RULE SET BY ACCESS ;
AUDIT CREATE ANY SEQUENCE BY ACCESS ;
AUDIT CREATE ANY SQL PROFILE BY ACCESS ;
AUDIT CREATE ANY SYNONYM BY ACCESS ;
AUDIT CREATE ANY TABLE BY ACCESS ;
AUDIT CREATE ANY TRIGGER BY ACCESS ;
AUDIT CREATE ANY TYPE BY ACCESS ;
AUDIT CREATE ANY VIEW BY ACCESS ;
AUDIT CREATE ASSEMBLY BY ACCESS ;
AUDIT CREATE CLUSTER BY ACCESS ;
AUDIT CREATE CUBE BY ACCESS ;
AUDIT CREATE CUBE BUILD PROCESS BY ACCESS ;
AUDIT CREATE CUBE DIMENSION BY ACCESS ;
AUDIT CREATE DATABASE LINK BY ACCESS ;
AUDIT CREATE DIMENSION BY ACCESS ;
AUDIT CREATE EVALUATION CONTEXT BY ACCESS ;
AUDIT CREATE EXTERNAL JOB BY ACCESS ;
AUDIT CREATE INDEXTYPE BY ACCESS ;
AUDIT CREATE JAVA CLASS BY ACCESS ;
AUDIT CREATE JAVA RESOURCE BY ACCESS ;
AUDIT CREATE JAVA SOURCE BY ACCESS ;
AUDIT CREATE JOB BY ACCESS ;
AUDIT CREATE LIBRARY BY ACCESS ;
AUDIT CREATE MATERIALIZED VIEW BY ACCESS ;
AUDIT CREATE MEASURE FOLDER BY ACCESS ;
AUDIT CREATE MINING MODEL BY ACCESS ;
AUDIT CREATE OPERATOR BY ACCESS ;
AUDIT CREATE PROCEDURE BY ACCESS ;
AUDIT CREATE PROFILE BY ACCESS ;
AUDIT CREATE PUBLIC DATABASE LINK BY ACCESS ;
AUDIT CREATE PUBLIC SYNONYM BY ACCESS ;
AUDIT CREATE ROLE BY ACCESS ;
AUDIT CREATE ROLLBACK SEGMENT BY ACCESS ;
AUDIT CREATE RULE BY ACCESS ;
AUDIT CREATE RULE SET BY ACCESS ;
AUDIT CREATE SEQUENCE BY ACCESS ;
AUDIT CREATE SESSION BY ACCESS ;
AUDIT CREATE SYNONYM BY ACCESS ;
AUDIT CREATE TABLE BY ACCESS ;
AUDIT CREATE TABLESPACE BY ACCESS ;
AUDIT CREATE TRIGGER BY ACCESS ;
AUDIT CREATE TYPE BY ACCESS ;
AUDIT CREATE USER BY ACCESS ;
AUDIT CREATE VIEW BY ACCESS ;
AUDIT DATABASE LINK BY ACCESS ;
AUDIT DEBUG ANY PROCEDURE BY ACCESS ;
AUDIT DEBUG CONNECT SESSION BY ACCESS ;
AUDIT DEBUG PROCEDURE BY ACCESS ;
AUDIT DELETE ANY CUBE DIMENSION BY ACCESS ;
AUDIT DELETE ANY MEASURE FOLDER BY ACCESS ;
AUDIT DELETE ANY TABLE BY ACCESS ;
AUDIT DEQUEUE ANY QUEUE BY ACCESS ;
AUDIT DIMENSION BY ACCESS ;
AUDIT DIRECTORY BY ACCESS ;
AUDIT DROP ANY ASSEMBLY BY ACCESS ;
AUDIT DROP ANY CLUSTER BY ACCESS ;
AUDIT DROP ANY CONTEXT BY ACCESS ;
AUDIT DROP ANY CUBE BY ACCESS ;
AUDIT DROP ANY CUBE BUILD PROCESS BY ACCESS ;
AUDIT DROP ANY CUBE DIMENSION BY ACCESS ;
AUDIT DROP ANY DIMENSION BY ACCESS ;
AUDIT DROP ANY DIRECTORY BY ACCESS ;
AUDIT DROP ANY EDITION BY ACCESS ;
AUDIT DROP ANY EVALUATION CONTEXT BY ACCESS ;
AUDIT DROP ANY INDEX BY ACCESS ;
AUDIT DROP ANY INDEXTYPE BY ACCESS ;
AUDIT DROP ANY LIBRARY BY ACCESS ;
AUDIT DROP ANY MATERIALIZED VIEW BY ACCESS ;
AUDIT DROP ANY MEASURE FOLDER BY ACCESS ;
AUDIT DROP ANY MINING MODEL BY ACCESS ;
AUDIT DROP ANY OPERATOR BY ACCESS ;
AUDIT DROP ANY OUTLINE BY ACCESS ;
AUDIT DROP ANY PROCEDURE BY ACCESS ;
AUDIT DROP ANY ROLE BY ACCESS ;
AUDIT DROP ANY RULE BY ACCESS ;
AUDIT DROP ANY RULE SET BY ACCESS ;
AUDIT DROP ANY SEQUENCE BY ACCESS ;
AUDIT DROP ANY SQL PROFILE BY ACCESS ;
AUDIT DROP ANY SYNONYM BY ACCESS ;
AUDIT DROP ANY TABLE BY ACCESS ;
AUDIT DROP ANY TRIGGER BY ACCESS ;
AUDIT DROP ANY TYPE BY ACCESS ;
AUDIT DROP ANY VIEW BY ACCESS ;
AUDIT DROP JAVA CLASS BY ACCESS ;
AUDIT DROP JAVA RESOURCE BY ACCESS ;
AUDIT DROP JAVA SOURCE BY ACCESS ;
AUDIT DROP PROFILE BY ACCESS ;
AUDIT DROP PUBLIC DATABASE LINK BY ACCESS ;
AUDIT DROP PUBLIC SYNONYM BY ACCESS ;
AUDIT DROP ROLLBACK SEGMENT BY ACCESS ;
AUDIT DROP TABLESPACE BY ACCESS ;
AUDIT DROP USER BY ACCESS ;
AUDIT ENQUEUE ANY QUEUE BY ACCESS ;
AUDIT EXECUTE ANY ASSEMBLY BY ACCESS ;
AUDIT EXECUTE ANY CLASS BY ACCESS ;
AUDIT EXECUTE ANY EVALUATION CONTEXT BY ACCESS ;
AUDIT EXECUTE ANY INDEXTYPE BY ACCESS ;
AUDIT EXECUTE ANY LIBRARY BY ACCESS ;
AUDIT EXECUTE ANY OPERATOR BY ACCESS ;
AUDIT EXECUTE ANY PROCEDURE BY ACCESS ;
AUDIT EXECUTE ANY PROGRAM BY ACCESS ;
AUDIT EXECUTE ANY RULE BY ACCESS ;
AUDIT EXECUTE ANY RULE SET BY ACCESS ;
AUDIT EXECUTE ANY TYPE BY ACCESS ;
AUDIT EXECUTE ASSEMBLY BY SESSION ;
AUDIT EXEMPT ACCESS POLICY BY ACCESS ;
AUDIT EXEMPT IDENTITY POLICY BY ACCESS ;
AUDIT EXPORT FULL DATABASE BY ACCESS ;
AUDIT FLASHBACK ANY TABLE BY ACCESS ;
AUDIT FLASHBACK ARCHIVE ADMINISTER BY ACCESS ;
AUDIT FORCE ANY TRANSACTION BY ACCESS ;
AUDIT FORCE TRANSACTION BY ACCESS ;
AUDIT GLOBAL QUERY REWRITE BY ACCESS ;
AUDIT GRANT ANY OBJECT PRIVILEGE BY ACCESS ;
AUDIT GRANT ANY PRIVILEGE BY ACCESS ;
AUDIT GRANT ANY ROLE BY ACCESS ;
AUDIT GRANT DIRECTORY BY ACCESS ;
AUDIT GRANT EDITION BY ACCESS ;
AUDIT GRANT MINING MODEL BY ACCESS ;
AUDIT GRANT PROCEDURE BY ACCESS ;
AUDIT GRANT SEQUENCE BY ACCESS ;
AUDIT GRANT TABLE BY ACCESS ;
AUDIT GRANT TYPE BY ACCESS ;
AUDIT IMPORT FULL DATABASE BY ACCESS ;
AUDIT INDEX BY ACCESS ;
AUDIT INSERT ANY CUBE DIMENSION BY ACCESS ;
AUDIT INSERT ANY MEASURE FOLDER BY ACCESS ;
AUDIT INSERT ANY TABLE BY ACCESS ;
AUDIT LOCK ANY TABLE BY ACCESS ;
AUDIT MANAGE ANY FILE GROUP BY ACCESS ;
AUDIT MANAGE ANY QUEUE BY ACCESS ;
AUDIT MANAGE FILE GROUP BY ACCESS ;
AUDIT MANAGE SCHEDULER BY ACCESS ;
AUDIT MANAGE TABLESPACE BY ACCESS ;
AUDIT MATERIALIZED VIEW BY ACCESS ;
AUDIT MERGE ANY VIEW BY ACCESS ;
AUDIT MINING MODEL BY ACCESS ;
AUDIT NOT EXISTS BY ACCESS ;
AUDIT ON COMMIT REFRESH BY ACCESS ;
AUDIT PROCEDURE BY ACCESS ;
AUDIT PROFILE BY ACCESS ;
AUDIT PUBLIC DATABASE LINK BY ACCESS ;
AUDIT PUBLIC SYNONYM BY ACCESS ;
AUDIT QUERY REWRITE BY ACCESS ;
AUDIT READ ANY FILE GROUP BY ACCESS ;
AUDIT RESTRICTED SESSION BY ACCESS ;
AUDIT RESUMABLE BY ACCESS ;
AUDIT ROLE BY ACCESS ;
AUDIT ROLLBACK SEGMENT BY ACCESS ;
AUDIT SELECT ANY CUBE BY ACCESS ;
AUDIT SELECT ANY CUBE DIMENSION BY ACCESS ;
AUDIT SELECT ANY MINING MODEL BY ACCESS ;
AUDIT SELECT ANY SEQUENCE BY ACCESS ;
AUDIT SELECT ANY TABLE BY ACCESS ;
AUDIT SELECT ANY TRANSACTION BY ACCESS ;
AUDIT SEQUENCE BY ACCESS ;
AUDIT SYNONYM BY ACCESS ;
AUDIT SYSDBA BY ACCESS ;
AUDIT SYSOPER BY ACCESS ;
AUDIT SYSTEM AUDIT BY ACCESS ;
AUDIT SYSTEM GRANT BY ACCESS ;
AUDIT TABLESPACE BY ACCESS ;
AUDIT TRIGGER BY ACCESS ;
AUDIT TYPE BY ACCESS ;
AUDIT UNDER ANY TABLE BY ACCESS ;
AUDIT UNDER ANY TYPE BY ACCESS ;
AUDIT UNDER ANY VIEW BY ACCESS ;
AUDIT UNLIMITED TABLESPACE BY ACCESS ;
AUDIT UPDATE ANY CUBE BY ACCESS ;
AUDIT UPDATE ANY CUBE BUILD PROCESS BY ACCESS ;
AUDIT UPDATE ANY CUBE DIMENSION BY ACCESS ;
AUDIT UPDATE ANY TABLE BY ACCESS ;
AUDIT USER BY ACCESS ;
AUDIT VIEW BY ACCESS ;
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Answer 1

I have tested on my DEVELOPMENT DB again. It is working fine. It requires to reconnect after turn off the DROP ANY TABLE. Have you done that? Send me output of test you performed.
You can test using following script.
connect as USER2 & execute following statements.
audit drop any table;
create table user1.test(
col1 number,
col2 number);
select os_username, username, action_name, priv_used
from dba_audit_trail a
where action = 85
and obj_name = 'TEST';
truncate table user1.test;
select os_username, username, action_name, priv_used
from dba_audit_trail a
where action = 85
and obj_name = 'TEST';
noaudit drop any table;
reconnect here as USER2
truncate table user1.test;
select os_username, username, action_name, priv_used
from dba_audit_trail a
where action = 85
and obj_name = 'TEST';