https://devzone.nordicsemi.com/f/nordic-q-a/92467/need-clarity-on-asynchronous-and-synchronous-callHi, In one of the example( zephyr / net / dns_resolve.h ) In this function description &quot;dns_get_addr_info()&quot; mentioned like below, @details This function can be used to resolve e.g., IPv4 or IPv6 address. * Note that this is asynchronous call ,en-USTelligent Community 13Fri, 30 Sep 2022 11:38:00 GMThttps://devzone.nordicsemi.com/thread/388752?ContentTypeID=1Fri, 30 Sep 2022 11:38:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:46abd099-7e95-4fe4-8bd5-aa67094e6a52H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>A asynchronous call will queue a operation and return before the actual operation is finished, similar to what is explained in the description of the API call.</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>