Serial Communication Unit MCQ

Test your knowledge with important Serial Communication Unit MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Serial Communication Unit MCQs at Bissoy

• The mode that offers the most secured parity enabled data communication at lower baud rates is
  ক

  mode 2

  খ

  mode 1

  গ

  mode 0

  ঘ

  all of the mentioned
• In mode 2, the baud rate depends only on
  ক

  SMOD bit

  খ

  SCON bit

  গ

  Oscillator clock frequency

  ঘ

  SMOD bit and oscillator clock frequency
• If the microcontroller is expected to communicate in a multiprocessor system, then the required condition is
  ক

  SM0 is set

  খ

  SM1 is set

  গ

  SM2 is set

  ঘ

  REN is set
• If SM0=1, SM1=0, then the transceiver selected is
  ক

  8-bit synchronous

  খ

  9-bit synchronous

  গ

  8-bit asynchronous

  ঘ

  9-bit asynchronous
• During serial reception, the buffer that receives serial bits and converts to a byte is
  ক

  receive buffer 0

  খ

  receive buffer 1

  গ

  receive buffer 2

  ঘ

  none
• The common unit shared by the receiver unit and transmission unit of serial communication unit is
  ক

  SCON(Serial Port Control) Register

  খ

  SBUF(Serial Buffer) register

  গ

  8-bit serial data interface

  ঘ

  All of the mentioned
• The transmission unit does not require assistance from processor if once a byte for transmission is written to
  ক

  SCON register

  খ

  SBUF register

  গ

  SFR address

  ঘ

  Any of the mentioned
• The task of converting the byte into serial form and transmitting it bit by bit along with start, stop and parity bits is carried out by
  ক

  reception unit

  খ

  serial communication unit

  গ

  transmission unit

  ঘ

  all of the mentioned
• The number of bits transmitted or received per second is defined as
  ক

  transmission rate

  খ

  reception rate

  গ

  transceiver rate

  ঘ

  baud rate
• The mcs 51 architecture supports
  ক

  serial transmission and reception

  খ

  simultaneous transmission and reception

  গ

  transmission and reception of data using serial communication interface

  ঘ

  all of the mentioned
• The serial communication is used for
  ক

  short distance communication

  খ

  long distance communication

  গ

  short and long distance communication

  ঘ

  communication for a certain range of distance
• The serial communication is
  ক

  cheaper communication

  খ

  requires less number of conductors

  গ

  slow process of communication

  ঘ

  all of the mentioned