| 41. | physical layer provides |
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Answer: (d). all of the mentioned
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| 42. | In asynchronous serial communication the physical layer provides |
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Answer: (c).both (a) and (b)
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| 43. | The physical layer is responsible for |
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Answer: (d).all of the mentioned
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| 44. | A single channel is shared by multiple signals by |
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Answer: (b).multiplexing
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| 45. | Baud means? |
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Answer: (c).The rate at which the signal changes
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| 46. | Which of the following devices takes data sent from one network device and forwards it to all devices on the network regardless of the intended recipient? |
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Answer: (c).Hub
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| 47. | Which of the following devices takes data sent from one network device and forwards it to the destination node based on MAC address? |
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Answer: (b).Switch
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| 48. | which of the following devices is used to connect different network segments and manage the traffic between them? |
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Answer: (a).Bridge
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| 49. | Unipolar, bipolar, and polar encoding are types of _______ encoding. |
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Answer: (a).line
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| 50. | _______ encoding has a transition at the middle of each bit. |
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Answer: (d).All the above
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