Embedded Real Time Operating System MCQs with answers Page - 10

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Q. What is the full form of ISA?

  • (A) Industry Standard Architecture
  • (B) International American Standard
  • (C) International Standard Architecture
  • (D) None of the mentioned

A

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Q. The disadvantage of using a parallel mode of communication is ______

  • (A) All of the mentioned
  • (B) Leads to erroneous data transfer
  • (C) Security of data
  • (D) It is costly

A

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

  • (A) Flip flops
  • (B) Logic circuits
  • (C) Shift registers
  • (D) None of the mentioned

A

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Q. What WLAN device provides communications management services to wireless workstations?

  • (A) Access Point
  • (B) Antenna
  • (C) Network Adaptor
  • (D) Repeater

A

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Q. RS-232, RS-449, RS-530, V-24, and X-21 are examples of?

  • (A) standards for various types of transmission channels.
  • (B) standards for interfaces between terminals and modems.
  • (C) two methods of error detection and correction
  • (D) standards for end-to-end performance of data communication systems.

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Q. Many cables have “RS-232” connectors with some wires crossed or connected to each other because….

  • (A) there are various RS-232 standards.
  • (B) asynchronous modem reverses the direction of transmitted and received data from the standard.
  • (C) accept commands from the terminals Via Rs-232 interface.
  • (D) many computers and peripherals use RS-232 serial interfaces, but not as DTE-to-DCE

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Q. Which protocol standard of serial communication specify the bi-directional and half-duplex form of data transmission by allowing various numbers of drivers and receivers in bus configuration?

  • (A) RS232
  • (B) RS2485
  • (C) RS422
  • (D) RS423

A

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Q. What is the maximum device handling capacity of serial standard protocol RS485 in terms of drivers and receivers on a single line?

  • (A) 8
  • (B) 10
  • (C) 16
  • (D) 32

A

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Q. The main importance of ARM micro-processors is providing operation with ______

  • (A) Low cost and low power consumption
  • (B) Higher degree of multi-tasking
  • (C) Lower error or glitches
  • (D) Efficient memory management

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Q. The address system supported by ARM systems is/are ___________

  • (A) Little Endian
  • (B) Big Endian
  • (C) X-Little Endian
  • (D) Both Little & Big Endian

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