After you click a cell for a formula, a rectangle of dashes called a(n) ____________________ appears around that cell.
Fill in the blank(s) with the appropriate word(s).
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Exercise 5.18 required the client to convert Object arguments into an array of bytes before invoking doOperation and Exercise 5.20 required the dispatcher to convert an array of bytes into an array of Objects before invoking the method. Discuss the implementation of a new version of doOperation with the following signature:
``` Object [] doOperation (RemoteObjectRef o, Method m, Object[] arguments); ``` which uses the ObjectOutputStream and ObjectInputStream classes to stream the request and reply messages between client and server over a TCP connection. How would these changes affect the design of the dispatcher?
A ____ case is a specific way of using the system by performing some part of the functionality.
A. positive-use B. negative-use C. risk-use D. designed-use