Can you explain the difference between SEO and SEM, and how do they complement each other in a digital marketing strategy? How do you conduct keyword research and select the most effective keywords for a search advertising campaign? Could you describe your approach to optimizing ad campaigns for maximum ROI while staying within budget constraints? What tools and platforms are you experienced with for managing SEM campaigns, and how do you stay updated on the latest industry trends and changes in search engine algorithms? Can you provide an example of a successful SEM campaign you've managed, including the goals, strategies, and results achieved?
