⟩ What tools or specific strategies you used when writing?
There are tons and tons of different tools that a writer can use. Mentioning any sort of social tools for promotion (Buffer, Social-bro, etc.) is a great way to show that he/she understands the industry. Any talk of using analytics and analyzing CTR is also a great (and fairly advanced) answer. This is one of those questions that you'll have a good feeling about right when it is answered.