MCQOPTIONS
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				| 1. | 
                                    The problem with unicast delivery is that the ___________ | 
                            
| A. | memory allocation is difficult | 
| B. | server must establish a separate unicast session for each client | 
| C. | the routers must support unicasting | 
| D. | the clients must be close to the server | 
| Answer» C. the routers must support unicasting | |