Answer
a: <em> No, it is not possible to send both packet at a time.</em>
Explanation:
In bus topology network, only one packet can be sent at a time. Therefore in it is not possible to forward two packets at the same time.
b. <em>No, It is not possible to read/write two or more different memory locations at the same time.</em>
Explanation:
As the system has shared bus topology, therefore it is not possible to read/ write on multiple locations of memory locations.
c. <em>No, it is not possible to send two data packets at the same time on same output port.</em>
Explanation:
Crossbar is device used to send multiple packets at the same time at different locations although it cannot send multiple packet at same location at the same time.