How do you answer evidence base question?

Answer Evidence Based Questions in Sewell chap. 10.

 When researching  information regarding evidence-based practice associated with hand hygiene methods and products used when caring for a patient-ordered contact precaution,  you could access the library’s nursing databases.

1. What is the difference between an index system and an electronic database ?
2. What different attributes/features would you use to conduct an effective, concise online search for appropriate nursing literature?
3. What advantage will a federated search provide for your search?

This doesnt have to be in a certain format or have a cover page. You can just answer each question with a few sentences and that will be fine. 

This is the book