A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.
| 31. | The _______ layer changes bits into electromagnetic signals. |
| a. | Physical |
| b. | Data link |
| c. | Transport |
| d. | None of the above |
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|
Answer: (a).Physical
|
| 32. | The _______ layer is the layer closest to the transmission medium. |
| a. | Physical |
| b. | Data link |
| c. | Network |
| d. | Transport |
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|
Answer: (a).Physical
|
| 33. | The process-to-process delivery of the entire message is the responsibility of the _______ layer. |
| a. | Network |
| b. | Transport |
| c. | Application |
| d. | Physical |
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|
Answer: (b).Transport
|
| 34. | The information to be communicated in a data communications system is the _______. |
| a. | Medium |
| b. | Protocol |
| c. | Message |
| d. | Transmission |
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|
Answer: (c).Message
|
| 35. | Frequency of failure and network recovery time after a failure are measures of the _______ of a network. |
| a. | Performance |
| b. | Reliability |
| c. | Security |
| d. | Feasibility |
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|
Answer: (b).Reliability
|
| 36. | An unauthorized user is a network _______ issue. |
| a. | Performance |
| b. | Reliability |
| c. | Security |
| d. | All the above |
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|
Answer: (c).Security
|
| 37. | Communication between a computer and a keyboard involves ______________ transmission. |
| a. | simplex |
| b. | half-duplex
|
| c. | full-duplex
|
| d. | automatic |
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|
Answer: (a).simplex
|
| 38. | A television broadcast is an example of _______ transmission. |
| a. | simplex |
| b. | half-duplex
|
| c. | full-duplex |
| d. | automatic |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (a).simplex
|
| 39. | A _______ connection provides a dedicated link between two devices. |
| a. | point-to-point |
| b. | multipoint |
| c. | primary |
| d. | secondary |
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|
Answer: (a).point-to-point
|
| 40. | In a _______ connection, more than two devices can share a single link. |
| a. | point-to-point |
| b. | multipoint |
| c. | primary |
| d. | secondary |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (b).multipoint
|
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