Read the following scenarios carefully and answer the given questions at the end of the scenario.

Assume a nationwide school system having campuses at Lahore, Karachi, Islamabad, Quetta, Peshawar, AJK, Multan, Faisalabad, Swat, and Hyderabad. Examination department at each campus needs to manage the data of students with contact detail and needs to send a progress report via email to student's guardian at the end of each month. There are thousands of students at each campus and there is no need to send mail from one city to another.

i.What delivery mode, communication method and frequency should be opted to design distributed database system? Why?

ii.How data should be distributed (replication/fragmentation)? Why?