Microprocessors And Microcontrollers MCQ

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• It is possible to copy a file in the same directory.
  ক

  True

  খ

  False
• Which of the following is not a general purpose peripheral?
  ক

  Input/Output port

  খ

  Programmable interrupt controller

  গ

  Programmable CRT controller

  ঘ

  Programmable interval timer
• MS Access is a DBMS software.
  ক

  True

  খ

  False
• Of the following circuits, the one which involves storage is
  ক

  RS Latch

  খ

  Mux

  গ

  Nand

  ঘ

  Decoder
• ‘Burst refresh’ in DRAM is also called
  ক

  Concentrated refresh

  খ

  Distributed refresh

  গ

  Hidden refresh

  ঘ

  None of the above
• The minimum number of transistors required to implement a two input AND gate is
  ক

  2

  খ

  4

  গ

  6

  ঘ

  8
• Which of the following is type declaration statement in C?
  ক

  int bar

  খ

  s = s + 1

  গ

  king = horse + 1

  ঘ

  prin = prin * prin
• A structure that stores a number of bits taken “together as a unit” is a
  ক

  Gate

  খ

  Mux

  গ

  Decoder

  ঘ

  Register
• Which memory has read operation, byte erase, byte write and chip erase?
  ক

  RAM

  খ

  UVEPROM

  গ

  EEPROM

  ঘ

  Both B and C
• The timing difference between a slow memory and fast processor can be resolved if
  ক

  Processor is capable of waiting

  খ

  External buffer is used

  গ

  Either A or B

  ঘ

  Neither A nor B
• Which of the following conditions is not allowed in an RS latch?
  ক

  R is asserted, S is asserted

  খ

  R is asserted, S is negated

  গ

  R is negated, S is asserted

  ঘ

  R is negated, S is negated
• In C the keywords are also called
  ক

  Special words

  খ

  Reserved words

  গ

  Class words

  ঘ

  Character words
• Using DeMorgan’s Theorem we can convert any AND-OR structure into
  ক

  NAND-NAND

  খ

  OR-NAND

  গ

  NAND-NOR

  ঘ

  NOR-NAND
• A real number consists of
  ক

  Integer part

  খ

  Integer part and fraction part

  গ

  Integer part, fraction part along with positive or negative sign

  ঘ

  None of the above
• Internet is a worldwide network of computers where most of the information is freely available.
  ক

  True

  খ

  False
• Which of the following is a valid integer constant?
  ক

  127

  খ

  127.0

  গ

  127.3

  ঘ

  125 + 3
• When the write enable input is not asserted, the gated D latch _________ its output.
  ক

  Can not change

  খ

  Clears

  গ

  Sets

  ঘ

  Complements
• Which of the following pair of gates can form a latch?
  ক

  A pair of cross coupled OR

  খ

  A pair of cross copled AND

  গ

  A pair of cross coupled NAND

  ঘ

  A cross coupled NAND/OR
• In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.
  ক

  True

  খ

  False
• In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is
  ক

  Assignment, relational, arithmetic

  খ

  Relational, assignment, arithmetic

  গ

  Arithmetic, assignment, relational

  ঘ

  Arithmetic, relational, assignment
• We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete
  ক

  Set of {AND,OR}

  খ

  Set of {EXOR, NOT}

  গ

  Set of {AND,OR,NOT}

  ঘ

  None of the above
• Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.
  ক

  BYTE

  খ

  NIBBLE

  গ

  WORD (16 bits)

  ঘ

  DOUBLEWORD (32 bits)
• An e-mail message can be sent to many recipients.
  ক

  True

  খ

  False