a$)$ A bank has many branches. A customer can open his account in any branch and can operate his account from any branch. The information that is stored about account includes account number, branch, name of customer, address of customer, guarantors of the customer, balance.

$($i$)$ Suggest a suitable fragmentation scheme for the bank. Give reason in support of your scheme.

$(4)$

$($ii$)$ Explain what is meant by data replication and suggest a suitable replication scheme.

$(4)$