For the protocol in section 17.3, what is a reasonable lifetime to use for the keys K/a? Why? What bad things could happen if the lifetime is longer? What bad things could happen if the lifetime is shorter?

Annie is creating a corporate report for a company’s annual meeting. in the report, she wants to add the signature of various department heads. which device can annie use to capture signatures to include in the report? a. printer b. monitor c. e-reader d. digitizing tablet

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).

Which argument is not a valid filter? does not equal this quarter filter by cell color all of these are valid filter arguments.