Tightly Coupled and Loosely Coupled Systems MCQ

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• To indicate the completion of task allocated in a closely (tightly) coupled system, the microprocessor uses
  ক

  status bit in memory

  খ

  interrupts the host

  গ

  status bit in memory or interrupts the host

  ঘ

  clock pulse
• The disadvantage of the loosely coupled system is
  ক

  complex due to additional hardware

  খ

  less portable

  গ

  more expensive

  ঘ

  all of the mentioned
• In a tightly coupled system, when a processor is using the bus then the local bus of other processors is in
  ক

  hold state

  খ

  high impedance state

  গ

  halt state

  ঘ

  low impedance state
• The loosely coupled system has an advantage of
  ক

  more number of CPUs can be added

  খ

  system structure is modular

  গ

  more fault-tolerant and suitable for parallel applications

  ঘ

  all of the mentioned
• The bus arbitration is handled by an external circuit in
  ক

  loosely coupled system

  খ

  tightly coupled system

  গ

  tightly and loosely coupled system

  ঘ

  none of the mentioned
• Communication between processors using a common system bus and common memory takes place in
  ক

  loosely coupled system

  খ

  tightly coupled system

  গ

  tightly and loosely coupled system

  ঘ

  none of the mentioned
• In tightly coupled systems, the microprocessors share
  ক

  common clock

  খ

  bus control logic

  গ

  common clock and bus control logic

  ঘ

  none of the mentioned
• The processor that asks for bus access or may itself fetch the instructions and execute them is
  ক

  microprocessor

  খ

  coprocessor

  গ

  independent processor

  ঘ

  coprocessor and independent processor
• The processor that executes the instructions fetched for it by the host processor is
  ক

  microprocessor

  খ

  coprocessor

  গ

  independent processor

  ঘ

  coprocessor and independent processor
• The processors used in the multi-microprocessor are
  ক

  coprocessors

  খ

  independent processors

  গ

  coprocessors or independent processors

  ঘ

  none of the mentioned