Handling Unwanted Advertising Name in BLE Multi Advertising

hello.
Currently I am implementing BLE Multi advertising in 
NCS SDK: version 2.6.0.

I have a question during development through the samples/bluetooth/multiple_adv_sets example.

static const struct bt_le_adv_param *adv1_param = BT_LE_ADV_NCONN_IDENTITY; 

I set the adv_param value as above, and after setting the value, I confirmed that ADV is performed by MAC Address when advertising.
(I need that feature(MAC Address) 
However, it seems that the scan response is advertised together or the advertising name(bt setting name) is included separately. 
The behavior I want is for only the advertising data I set to be advertised,
 but the problem is that the advertising name is also advertised. 
(I would like to inquire as to whether this behavior operates as a scan response.) 
Thanks.
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