You should know the center bank key reponsibilites which is low and stable inflation and reduce unemployment rate. Second, you should know the impact of inflation on the economy, the impact of high fed fund rate on the economy which is reduce inflation and increase unemployment. There is a trade-off between inflation and unemployment. Finally, you should know the outcome of the position (the things that you should deliver) is it reports, or policies. For reports, you should know some programming languages such as R or python. For policy, you should know the international institutions such as Bank of International Settment (BIS) and their working groups.