| 41. | In _______ transmission, the channel capacity is shared by both communicating devices at all times. |
| a. | simplex |
| b. | half-duplex |
| c. | full-duplex |
| d. | half-simplex |
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Answer: full-duplex
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| 42. | In the original ARPANET, _______ were directly connected together. |
| a. | IMPs |
| b. | host computers |
| c. | networks |
| d. | routers |
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Answer: (a).IMPs
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| 43. | _______ are special-interest groups that quickly test, evaluate, and standardize new technologies. |
| a. | Forums |
| b. | Regulatory agencies |
| c. | Standards organizations |
| d. | All of the above |
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Answer: (a).Forums
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| 44. | Which agency developed standards for physical connection interfaces and electronic signaling specifications? |
| a. | EIA |
| b. | ITU-T |
| c. | ANSI |
| d. | ISO |
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Answer: (a).EIA
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| 45. | _______ refers to the structure or format of the data, meaning the order in which they are presented. |
| a. | Semantics |
| b. | Syntax |
| c. | Timing |
| d. | All of the above |
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Answer: (b).Syntax
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| 46. | ________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation. |
| a. | Semantics |
| b. | Syntax |
| c. | Timing |
| d. | None of the above |
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Answer: (a).Semantics
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| 47. | _______ refers to two characteristics: when data should be sent and how fast it can be sent. |
| a. | Semantics |
| b. | Syntax |
| c. | Timing |
| d. | none of the above |
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Answer: (c).Timing
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| 48. | Data flow between two devices can occur in a _______ way. |
| a. | simplex |
| b. | half-duplex |
| c. | full-duplex |
| d. | all of the above |
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Answer: (d).all of the above
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| 49. | In a ______ connection, two and only two devices are connected by a dedicated link. |
| a. | multipoint |
| b. | point-to-point |
| c. | (a) and (b) |
| d. | none of the above |
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Answer: (b).point-to-point
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| 50. | In a ________ connection, three or more devices share a link. |
| a. | multipoint |
| b. | point-to-point |
| c. | (a) and (b) |
| d. | none of the above |
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Answer: (a).multipoint
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