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Questions on Microprocessors and Microcontrollers, Exercises of Microprocessors

KLE Academy of Higher Education and ResearchMicroprocessors

MP and MC multiple choice question bank

Typology: Exercises

2020/2021

Uploaded on 04/03/2021

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bg1
Embedded systems are
(a) General purpose
(b) Special purpose
Embedded system is
An electronic system
A pure mechanical system
An electro-mechanical system
(a) or ( c )
Which of the following is not true about embedded systems?
Built around specialized hardware
Always contain an operating system
Execution behavior may be deterministic
All of these
None of these
4. Which of the following is (are) an intended purpose(s) of embedded systems?
(a) Data collection (b) Data processing (c ) Data communication
(d) All of these (e) None of these
5. Which of the following is an (are) example(s) of embedded system for data
communication?
(a) USB Mass storage device (b) Network router
(c ) Digital camera (d) Music player
(e) All of these (f) None of these
6. A digital multi meter is an example of an embedded system for
(a) Data communication (b) Monitoring
(c) Control (d) All of these
(e) None of these
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Embedded systems are (a) General purpose (b) Special purpose Embedded system is An electronic system A pure mechanical system An electro-mechanical system (a) or ( c ) Which of the following is not true about embedded systems? Built around specialized hardware Always contain an operating system Execution behavior may be deterministic All of these None of these

  1. Which of the following is (are) an intended purpose(s) of embedded systems? (a) Data collection (b) Data processing (c ) Data communication (d) All of these (e) None of these
  2. Which of the following is an (are) example(s) of embedded system for data communication? (a) USB Mass storage device (b) Network router (c ) Digital camera (d) Music player (e) All of these (f) None of these
  3. A digital multi meter is an example of an embedded system for (a) Data communication (b) Monitoring (c) Control (d) All of these (e) None of these

Embedded hardware/software systems are basically designed to (a) Regulate a physical variable (b) Change the state of some devices (c) Measure/Read the state of a variable/device (d) Any/All of these

  1. Little Endian processors (a) Store the lower-order byte of the data at the lowest address and the higher-order byte of the data at the highest address of memory (b) Store the higher-order byte of the data at the lowest address and the lower-order byte of the data at the highest address of memory (c) Store both higher order and lower order byte of the data at the same address of memory (d) None of these
  2. The instruction set of RISC processor is (a) Simple and lesser in number (b) Complex and lesser in number (c) Simple and larger in number (d) Complex and larger in number 24 Which of the following is true about CISC processors? (a) The instruction set is non-orthogonal (b) The number of general purpose registers is limited. (c) Instructions are like macros in C language (d) Variable length instructions (e) All of these (f) None of these
  3. Which of the following processor architecture supports easier instruction pipelining? (a) Harvard (b) Von Neumann (c ) Both of them (d) None of these
  4. An integer variable with value 255 is stored in memory location at 0x8000. The processor word length is 8 bits and the processor is a big endian processor. The size of integer is considered as 4 bytes in the system. What is the value held by the memory location 0x8000? (a) 0 x FF (b) 0 x 00 (c ) 0 x 01 (d) None of these

(c) Optocoupler can be used in both input and output circuitry (d) None of these What is the minimum number I/O line required to interface a 16-Key matrix keyboard? (a) 16 (b) 8 (c) 4 (d) 9

  1. Which is the optimal row-column configuration for a 24 key matrix keyboard? (a) 6x4 (b) 8x3 (c) 12x2 (d) 5x
  2. Which of the following is an example for on-board interface in the embedded system context? (a) I2C (b) Bluetooth (c) SPI (d) All of them (e) Only (a) and (c)
  3. What is the minimum number of interface lines required for implementing I2C interface? (a) 1 (b) 2 (c) 3 (d) 4
  4. What is the minimum number of interface lines required for implementing SPI interface? (a) 2 (b) 3 (c) 4 (d) 5 Which of the following are synchronous serial interface? (a) I2C (b) SPI (c) UART (d) All of these (e) Only (a) and (b)
  5. RS-232 is a synchronous serial interface. State True or False (a) True (b) False
  6. What is the maximum number of USB devices that can be connected to a USB host? (a) Unlimited (b) 128 (c) 127 (d) None of these
  7. In the ZigBee network, which of the following ZigBee entity stores the information about the network? (a) ZigBee Coordinator (b) ZigBee Router (c) ZigBee Reduced Function Device (d) All of them
  8. What is the theoretical maximum data rate supported by GPRS (a) 8 Mbps (b) 12 Mbps (c) 100 Kbps (d) 171.2 Kbps
  9. GPRS communication divides the radio channel into -------- timeslots.
  • (a) 2 (b) 3 (c) 5 (d)