Quiznetik

Computer Architecture | Set 3

1. The status flags required for data transfer is present in

Correct : C. interface circuit

2. User programmable terminals that combine VDT hardware with built-in microprocessor is

Correct : D. intelligent terminals

3. Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?

Correct : A. mouse

4. is used as an intermediate to extend the processor BUS.

Correct : A. bridge

5. is an extension of the processor BUS.

Correct : C. pci bus

6. What is the full form of ISA?

Correct : B. industry standard architecture

7. What is the full form of ANSI?

Correct : A. american national standards institute

8. SCSI stands for

Correct : B. small computer system interface

9. ISO stands for

Correct : A. international standards organisation

10. The system developed by IBM with ISA architecture is

Correct : C. pc-at

11. IDE disk is connected to the PCI BUS using               interface.

Correct : A. isa

12. IDE stands for

Correct : A. integrated device electronics

13. The            circuit enables the generation of the ASCII code when the key is pressed.

Correct : C. encoder

14. To overcome multiple signals being generated upon a single press of the button, we make use of

Correct : B. debouncing circuit

15. The best mode of connection between devices which need to send or receive large amounts of data over a short distance is

Correct : C. parallel port

16. The output of the encoder circuit is/are

Correct : B. ascii code and the valid signal

17. The disadvantage of using a parallel mode of communication is

Correct : A. it is costly

18. In a 32 bit processor, the A0 bit of the address line is connected to            of the parallel port interface.

Correct : D. status or data register

19. The Status flag circuit is implemented using

Correct : B. d flip flop

20. In the output interface of the parallel port, along with the valid signal                is also sent.

Correct : B. idle signal

21. DDR stands for

Correct : A. data direction register

22. In a general 8-bit parallel interface, the INTR line is connected to

Correct : A. status and control unit

23. The mode of transmission of data, where one bit is sent for each clock cycle is

Correct : D. isochronous

24. The transformation between the Parallel and serial ports is done with the help of

Correct : C. shift registers

25. The serial port is used to connect basically            and processor.

Correct : A. i/o devices

26. The double buffer is used for

Correct : A. enabling retrieval of multiple bits of input

27. UART stands for

Correct : C. universal asynchronous receiver transmitter

28. The key feature of UART is

Correct : D. its enhancement of connecting low speed devices

29. The data transfer in UART is done in

Correct : A. asynchronous start stop format

30. The standard used in serial ports to facilitate communication is

Correct : C. rs-232-c

31. In a serial port interface, the INTR line is connected to

Correct : A. status register

32. The PCI follows a set of standards primarily used in            PC’s.

Correct : C. ibm

33. The               is the BUS used in Macintosh PC’s.

Correct : A. nubus

34. The key feature of the PCI BUS is

Correct : B. plug and play capability

35. PCI stands for

Correct : A. peripheral component interconnect

36. The PCI BUS supports            address space/s.

Correct : D. all of the mentioned

37. address space gives the PCI its plug and plays capability.

Correct : A. configuration

38. provides a separate physical connection to the memory.

Correct : C. pci bridge

39. When transferring data over the PCI BUS, the master as to hold the address until the completion of the transfer to the slave.

Correct : B. false

40. The master is also called as            in PCI terminology.

Correct : A. initiator

41. Signals whose names end in          are asserted in the low voltage state.

Correct : B. #

42. A complete transfer operation over the BUS, involving the address and a burst of data is called

Correct : A. transaction

43. The device connected to the BUS are given addresses of          bit.

Correct : B. 64

44. The PCI BUS has            interrupt request lines.

Correct : C. 4

45. signal is sent by the initiator to indicate the duration of the transaction.

Correct : A. frame#

46. signal is used to enable commands.

Correct : D. c/be#

47. IRDY# signal is used for

Correct : C. saying that the initiator is ready

48. The signal used to indicate that the slave is ready is

Correct : B. trdy#

49. DEVSEL# signal is used

Correct : C. by the device to indicate that it is ready for a transaction

50. The signal used to initiate device select

Correct : D. idsel#

51. The key features of the SCSI BUS are

Correct : B. the ability overlap data transfer requests

52. In a data transfer operation involving SCSI BUS, the control is with

Correct : D. target controller

53. In SCSI transfers the processor is not aware of the data being transferred.

Correct : A. true

54. What is DB(P) line?

Correct : B. that the data line is carrying the parity information

55. The BSY signal signifies

Correct : A. the bus is busy

56. The SEL signal signifies

Correct : B. the device for bus control is selected

57. signal is asserted when the initiator wishes to send a message to the target.

Correct : D. atn

58. The MSG signal is used

Correct : C. to tell that the information being sent is a message

59. is used to reset all the device controls to their startup state.

Correct : B. rst

60. SCSI stands for

Correct : A. small computer system interface

61. ANSI stands for

Correct : D. american national standard institute

62. A narrow SCSI BUS has            data lines.

Correct : B. 8

63. HVD stands for

Correct : A. high voltage differential

64. For better transfer rates on the SCSI BUS the length of the cable is limited to

Correct : D. 1.6m

65. The mode of data transfer used by the controller is

Correct : B. dma

66. The data is stored on the disk in the form of blocks called

Correct : C. sectors

67. The high speed mode of operation of the USB was introduced by

Correct : C. usb 2.0

68. The sampling process in speaker output is a                   process.

Correct : C. isochronous

69. The I/O devices form the            of the tree structure.

Correct : A. leaves

70. USB is a parallel mode of transmission of data and this enables for the fast speeds of data transfers.

Correct : B. false

71. In USB the devices can communicate with each other.

Correct : B. false

72. The device can send a message to the host by taking part in            for the communication path.

Correct : B. polling

73. When the USB is connected to a system, its root hub is connected to the

Correct : C. processor bus

74. The devices connected to USB is assigned a          address.

Correct : D. 7 bit

75. The USB address space can be shared by the user’s memory space.

Correct : B. false

76. Locations in the device to or from which data transfers can take place is called

Correct : A. end points

77. A USB pipe is a               channel.

Correct : C. full-duplex

78. The type/s of packets sent by the USB is/are

Correct : D. both data and control

79. The first field of any packet is

Correct : A. pid

80. The 4 bit PID’s are transmitted twice.

Correct : A. true

81. The last field in the packet is

Correct : D. crc

82. The CRC bits are computed based on the values of the

Correct : D. both addr and endp

83. The data packets can contain data upto

Correct : C. 1024 bytes

84. The            signal is used to indicate the beginning of a new frame.

Correct : B. sof

85. The SOF is transmitted every

Correct : C. 1ms

86. The logic operations are simpler to implement using logic circuits.

Correct : A. true

87. The logic operations are implemented using                 circuits.

Correct : C. combinatorial

88. In full adders the sum circuit is implemented using

Correct : C. xor

89. The usual implementation of the carry circuit involves

Correct : B. xor

90. A                 gate is used to detect the occurrence of an overflow.

Correct : B. xor

91. The delay reduced to in the carry look ahead adder is

Correct : A. 5

92. The product of 1101 & 1011 is

Correct : A. 10001111

93. The               is used to coordinate the operation of the multiplier.

Correct : C. control sequencer

94. The multiplicand and the control signals are passed through to the n-bit adder via

Correct : A. mux

95. The method used to reduce the maximum number of summands by half is

Correct : B. bit-pair recording

96. The multiplier -6(11010) is recorded as

Correct : A. 0-1-2

97. CSA stands for?

Correct : A. computer speed addition

98. The decimal numbers represented in the computer are called as floating point numbers, as the decimal point floats through the number.

Correct : A. true

99. The numbers written to the power of 10 in the representation of decimal numbers are called as

Correct : C. scale factors

100. If the decimal point is placed to the right of the first significant digit, then the number is called

Correct : B. normalized