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IBPS PO Mains: Computer Awareness Quiz - Part 7

Published on Wednesday, November 09, 2016

1. Punch card was invented by
1. Charles Babbage
2. Blaise Pascal
3. Alan Turing
4. Herman Hallerith
5. None of these



2. A communication device that combines transmission from several input line into one known as-
1. Modifier
2. Multiplexer
3. De Multiplexer
4. Counter
5. None of these


3. In queue the end from where items inserted is known as 
1. Rear
2. Front
3. Top
4. Base
5. None of these


4. What is the length of an ATM cell is Bytes?
1. 50
2. 53
3. 48
4. 60
5. None of these


5. To discard all pending data changes is - 
1. Commit
2. Save Point
3. Roll Bank
4. Lock
5. None of these


6. Which of the following transform physical location of record by mathematical formula file key into record location?
1. B- tree file
2. An index file
3. Hashed file
4. Sequential file
5. None of these


7. The mechanism that brings a page memory only when it is needed is called-
1. Segmentation
2. Fragmentation
3. page replacement
4. Demand paging
5. None of these


8. What is Binary equivalent of Decimal number 11?
1. 1000
2. 1001
3. 1010
4. 1011
5. None of these


9. Start and Stop bit are used in serial communication for - 
1. Error detection
2. Error correction
3. Transmission control
4. Synchronization
5. None of these


10. Which of the following performs modulation and demodulation?
1. Fibre optic
2. Bridge
3. Modem
4. Hub
5. None of these


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