According to Google, core improvements are intended to improve the overall relevancy of search results and make them more valuable and beneficial to everyone.
A digital marketer is responsible for all marketing campaigns aimed at promoting a company's products. If your website is affected by the core update, they can assist you in recovering.
There are several options for learning the fundamentals of digital marketing. You can take courses from Great Learning or other recognized institutes.
Check out the PG Program in Digital Marketing offered by Great Lakes in Collaboration with Great Learning.