McqMate
| Q. |
As the resources are reserved between two communicating end systems in circuit switching, is achieved. |
| A. | authentication |
| B. | guaranteed constant rate |
| C. | reliability |
| D. | store and forward |
| Answer» B. guaranteed constant rate | |
| Explanation: circuit switching is connection oriented and is always implemented in the physical layer. once a path is set, all transmission occurs through the same path. it is used since the early times in telephonic systems. | |
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