Consider each of the following situations in turn. for each, state whether hashing and / or encryption would have an appropriate role and if they do, explain that role.
i. secure payments systems.
ii. protecting conversations made over mobile phone and online telecommunication applications.
iii. checking for data corruption when a file is sent over a network.
iv. preventing piracy of media files.
v. identifying duplicate files.

The cm is responsible for overseeing the actions of the crisis management team and coordinating all crisis management efforts in cooperation with disaster recovery and/or business continuity planning, on an as-needed basis

Martha is a healer, a healthcare provider, and an experienced nurse. she wants to share her daily experiences, as well as her 12 years of work knowledge, with people who may be interested in health and healing. which mode of internet communication can martha use?

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).