^^^^^^^^^^^
The descriptions above are a bit terse, here's a table describing different scenarios with regards to the ``dnssec`` mode.
-+--------------+---------+---------------+---------------+---------------+---------------+
-| | ``off`` | ``process-no- | ``process`` | ``log-fail`` | ``validate`` |
-| | | validate`` | | | |
-+==============+=========+===============+===============+===============+===============+
-| Perform | No | No | Only on +AD | Always (logs | Always |
-| validation | | | or +DO from | result) | |
-| | | | client | | |
-+--------------+---------+---------------+---------------+---------------+---------------+
-| SERVFAIL on | No | No | Only on +AD | Only on +AD | Always |
-| bogus | | | or +DO from | or +DO from | |
-| | | | client | client | |
-+--------------+---------+---------------+---------------+---------------+---------------+
-| AD in | Never | Never | Only on +AD | Only on +AD | Only on +AD |
-| response on | | | or +DO from | or +DO from | or +DO from |
-| authenticate | | | client | client | client |
-| d | | | | | |
-| data | | | | | |
-+--------------+---------+---------------+---------------+---------------+---------------+
-| RRSIGs/NSECs | No | Yes | Yes | Yes | Yes |
-| in answer on | | | | | |
-| +DO from | | | | | |
-| client | | | | | |
-+--------------+---------+---------------+---------------+---------------+---------------+
++--------------+---------+-------------------------+---------------+---------------+---------------+
+| | ``off`` | ``process-no-validate`` | ``process`` | ``log-fail`` | ``validate`` |
++==============+=========+=========================+===============+===============+===============+
+| Perform | No | No | Only on +AD | Always (logs | Always |
+| validation | | | or +DO from | result) | |
+| | | | client | | |
++--------------+---------+-------------------------+---------------+---------------+---------------+
+| SERVFAIL on | No | No | Only on +AD | Only on +AD | Always |
+| bogus | | | or +DO from | or +DO from | |
+| | | | client | client | |
++--------------+---------+-------------------------+---------------+---------------+---------------+
+| AD in | Never | Never | Only on +AD | Only on +AD | Only on +AD |
+| response on | | | or +DO from | or +DO from | or +DO from |
+| authenticate | | | client | client | client |
+| d | | | | | |
+| data | | | | | |
++--------------+---------+-------------------------+---------------+---------------+---------------+
+| RRSIGs/NSECs | No | Yes | Yes | Yes | Yes |
+| in answer on | | | | | |
+| +DO from | | | | | |
+| client | | | | | |
++--------------+---------+-------------------------+---------------+---------------+---------------+
**Note**: the ``dig`` tool sets the AD-bit in the query.
This might lead to unexpected query results when testing.