As you answer questions about your accomplishments with other companies, be specific. Simply stating, "I ran several online marketing campaigns" does not adequately show what you can do for the company. Better answers should resemble, "I started a social media campaign that utilized targeted advertising systems to market the company's services to youth in North America." You will also need to elaborate. Use numbers that support the campaign, such as "Within three financial quarters, sales increased by 427% and brand recognition vastly improved by 10% within the target demographic."