?_____ is a planned meeting during which a systems analyst obtains information from another person.
A. ?A survey
B. ?An interview
C. ?Sampling
D. ?Research
Answer: B
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Modify problem 8 from Chapter 7 so that whenever a client contacts the server, a time stamp is sent from the server to every client that has contacted it so far.
``` import java.rmi.*; /** * This is a remote interface for a Daytime server with * callback. * @author M. L. Liu */ public interface DaytimeServerInterface extends Remote { public String getDaytime(DaytimeClientInterface daytimeClientObject ) throws java.rmi.RemoteException; } ``` ``` public interface DaytimeClientInterface extends java.rmi.Remote{ // This remote method is invoked by a callback // server to make a callback to an client which // implements this interface. // @param message - a string containing information for the // client to process upon being called back. public void notifyMe(String message) throws java.rmi.RemoteException; } // end interface ```
A style is the arrangement of elements such as titles and pictures on a slide
Indicate whether the statement is true or false
The __________ layer keeps track of which frames have been successfully received and retransmits unsuccessful frames.
A. transmission B. media access control C. logical link control D. physical layer
A function needs information to make a calculation.This information is known as a(n) ____.
A. argument B. formula C. reference D. absolute reference