Recruiters learn very little from a CV line that simply says “Marketing Intern” or “Software Intern.” They need context: what you worked on, what you owned, which tools you used, and what outputs you produced.
Keep a private record throughout the internship. Note projects, responsibilities, feedback, problems solved, and measurable information you are allowed to disclose. Respect confidentiality and never publish client or company information without permission.
At the end, convert that record into concise CV bullets and portfolio entries. Focus on actions and outputs, not generic statements about learning.
A well-documented internship can support multiple interview answers because it gives you real situations involving deadlines, teamwork, mistakes, and improvement.