| 61. | It directs data from input to a selected output line |
| a. | Demultiplexer |
| b. | Multiplexer |
| c. | Coder |
| d. | Both a and b |
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Answer: (a).Demultiplexer
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| 62. | It is a very useful combinational circuit used in communication systems. |
| a. | Parity bit Checker |
| b. | Parity bit Generator |
| c. | Parity bit |
| d. | Both a and b |
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Answer: (d).Both a and b
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| 63. | This converter deals with converting binary code to gray code |
| a. | Binary to Gray Code Converter |
| b. | Gray to Binary Code Converter |
| c. | Binary Code Converter |
| d. | Gray Code Converter |
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Answer: (a).Binary to Gray Code Converter
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| 64. | It compares two n-bit values to determine whether one of them is greater or if they are equal. |
| a. | Calculator |
| b. | Multiplexer |
| c. | Comparator |
| d. | None of the above |
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Answer: (c).Comparator
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| 65. | It is a circuit, which has a number of input lines and selection lines with one output line. |
| a. | Sequential Circuit |
| b. | Multiplexer |
| c. | Counter |
| d. | All of the above |
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Answer: (b).Multiplexer
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| 66. | It is a circuit, which can remember values for a long time or change values when required. |
| a. | Ripple |
| b. | Counter |
| c. | Circuit |
| d. | Memory Element |
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Answer: (d).Memory Element
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| 67. | It is a sequential circuit that cycles through a sequence of states. |
| a. | Multiplexer |
| b. | Demultiplexer |
| c. | Counter |
| d. | Ripple |
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Answer: (c).Counter
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| 68. | It is a counter where the flip-flops do not change states at exactly the same time, as they do not have a common clock pulse. |
| a. | Asynchronous Ripple Counter |
| b. | Synchronous Ripple Counter |
| c. | Counter |
| d. | All of the above |
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Answer: (a).Asynchronous Ripple Counter
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| 69. | It is a bi-directional counter capable of counting in either of the direction depending on the control signal |
| a. | Up Synchronous Counter |
| b. | Down Synchronous Counter |
| c. | Synchronous Counter |
| d. | Both a and b |
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Answer: (d).Both a and b
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| 70. | In this logic, output depends not only on the current inputs but also on the past input values. It needs some type of memory to remember the past input values |
| a. | Logical Circuit |
| b. | Connected Circuit |
| c. | Sequential Circuit |
| d. | Parallel Circuit |
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Answer: (c).Sequential Circuit
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