The CorpDC3 server is a domain controller in the CorpNet domain. The server holds an Active Directory-integrated zone for the CorpNet domain. You need to secure zone data and prevent anyone from copying zone data from the CorpDC3 server through zone transfer. Because all zone information is replicated automatically through Active Directory replication, you know you can disable zone transfers while still replicating data with other domain controllers. In this lab, your task is to disable zone transfers for the CorpNet zone.

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).