Embedded Systems MCQs January 8, 2026July 11, 2024 by u930973931_answers 50 min Score: 0 Attempted: 0/50 Subscribe 1. Which of the following is not a characteristic of an Embedded System? (A) Real-time operation (B) General-purpose computing (C) Specific function (D) Constrained resources 2. What is the primary function of a bootloader in an Embedded System? (A) Memory management (B) Initialize hardware and load OS/kernel (C) Interface with peripherals (D) Manage power consumption 3. Which programming language is commonly used for Embedded Systems? (A) Python (B) Java (C) C++ (D) Swift 4. What is the purpose of a watchdog timer in an Embedded System? (A) To detect and correct memory errors (B) To synchronize multiple processors (C) To handle power management (D) To prevent system crashes by resetting the system 5. Which memory type is typically used for storing program instructions in an Embedded System? (A) RAM (B) EEPROM (C) Cache (D) Flash 6. In which stage of the Embedded System design process is hardware designed and tested? (A) Analysis and specification (B) Testing and integration (C) Design and implementation (D) Deployment and maintenance 7. Which of the following is not a type of Embedded System? (A) Desktop computers (B) Microwave ovens (C) Smartphones (D) Digital cameras 8. Which software tool is commonly used for debugging Embedded Systems? (A) Visual Studio (B) gdb (C) Eclipse (D) Sublime Text 9. Which of the following is a communication protocol commonly used in Embedded Systems? (A) HTTP (B) TCP/IP (C) SPI (D) FTP 10. What does RTOS stand for in the context of Embedded Systems? (A) Remote Task Observation System (B) Real-Time Operating System (C) Rapid Transfer of Signals (D) Random Task Operation System 11. Which technique is used to conserve power in battery-operated Embedded Systems? (A) Power gating (B) Memory mapping (C) Interrupt handling (D) Clock gating 12. What is the primary role of an ADC (Analog-to-Digital Converter) in an Embedded System? (A) Convert digital signals to analog (B) Convert analog signals to digital (C) Interface with digital peripherals (D) Manage memory allocation 13. Which of the following is an example of a real-time Embedded System? (A) Digital watch (B) Personal computer (C) Television (D) Air traffic control system 14. Which of the following is not a type of Embedded System memory? (A) DRAM (B) SRAM (C) FRAM (D) EPROM 15. Which tool is used to simulate the behavior of an Embedded System before actual hardware is available? (A) Simulator (B) Debugger (C) Compiler (D) Emulator 16. Which processor architecture is commonly used in Embedded Systems? (A) x86 (B) MIPS (C) PowerPC (D) ARM 17. What is the purpose of the CAN bus in Embedded Systems? (A) Power supply distribution (B) File storage (C) Sensor data transmission (D) Audio playback 18. Which of the following is an example of a system-on-chip (SoC)? (A) Arduino Uno (B) Raspberry Pi (C) Intel Core i7 (D) BeagleBone Black 19. Which Embedded System component is responsible for managing power supply to the CPU? (A) Reset circuit (B) Crystal oscillator (C) Voltage regulator (D) GPIO controller 20. What does GPIO stand for in Embedded Systems? (A) General Processor Input/Output (B) Graphics Processing Input/Output (C) General-Purpose Input/Output (D) Graphical Processor Input/Output 21. Which of the following is not a characteristic of an RTOS (Real-Time Operating System)? (A) Multitasking (B) Deterministic behavior (C) Non-preemptive scheduling (D) Resource management 22. Which communication protocol is typically used for short-range wireless communication in Embedded Systems? (A) Ethernet (B) Bluetooth (C) Zigbee (D) LTE 23. Which type of memory is non-volatile and can be electrically erased and reprogrammed? (A) ROM (B) RAM (C) Flash (D) Cache 24. What is the primary function of an I2C (Inter-Integrated Circuit) bus in an Embedded System? (A) Inter-chip communication (B) Video output (C) Audio processing (D) Power regulation 25. Which Embedded System component is responsible for generating accurate time delays? (A) Crystal oscillator (B) Timer/Counter (C) Voltage regulator (D) Comparator 26. Which of the following is an example of an interrupt source in an Embedded System? (A) LED display (B) Serial port (C) Voltage regulator (D) Push-button switch 27. Which technique is used to reduce electromagnetic interference (EMI) in Embedded Systems? (A) Grounding (B) Clock gating (C) Power gating (D) Interrupt handling 28. Which of the following is an example of a real-time constraint in an Embedded System? (A) High-definition graphics (B) File storage capacity (C) Wireless connectivity (D) Low-latency sensor data processing 29. Which protocol is commonly used for programming and debugging microcontrollers? (A) JTAG (B) UART (C) SPI (D) I2C 30. Which of the following is an example of an input device in an Embedded System? (A) LCD display (B) Motor driver (C) Keypad (D) Flash memory 31. What is the function of an EEPROM (Electrically Erasable Programmable Read-Only Memory) in an Embedded System? (A) Store program instructions (B) Provide temporary storage for data (C) Store calibration data and settings (D) Manage power consumption 32. Which type of Embedded System is designed to operate within a limited geographical area and connect to the internet? (A) Industrial IoT devices (B) Wearable devices (C) Consumer electronics (D) Smart home appliances 33. Which Embedded System component is responsible for generating clock signals for synchronization? (A) Crystal oscillator (B) Watchdog timer (C) ADC (D) GPIO 34. What is the role of a DMA (Direct Memory Access) controller in an Embedded System? (A) Transfer data between memory and peripherals (B) Handle interrupts from peripherals (C) Manage power consumption (D) Interface with the display driver 35. Which of the following is a common application of Embedded Systems in automotive systems? (A) Collision avoidance systems (B) Wireless charging (C) Virtual reality (D) Video streaming 36. Which Embedded System component is responsible for converting digital signals to analog for output? (A) ADC (Analog-to-Digital Converter) (B) DAC (Digital-to-Analog Converter) (C) PWM (Pulse Width Modulation) (D) UART (Universal Asynchronous Receiver/Transmitter) 37. Which type of memory is typically used for storing temporary data and variables in an Embedded System? (A) EEPROM (B) SRAM (C) Flash (D) ROM 38. Which of the following is an advantage of using an FPGA (Field-Programmable Gate Array) in Embedded Systems? (A) Flexibility in hardware design (B) High computational speed (C) Low power consumption (D) Low cost 39. Which software tool is used to convert high-level programming code into machine code for an Embedded System? (A) Debugger (B) Compiler (C) Emulator (D) Simulator 40. Which of the following is an example of a peripheral device in an Embedded System? (A) Display (B) Sensor (C) Microcontroller (D) EEPROM 41. Which technique is used to extend the number of I/O ports available in an Embedded System? (A) DMA (B) Multiplexing (C) Interrupt handling (D) Clock gating 42. What is the purpose of a capacitor in an Embedded System circuit? (A) Store program instructions (B) Measure current consumption (C) Smooth out voltage fluctuations (D) Control timing delays 43. Which Embedded System component is responsible for regulating voltage supplied to the microcontroller? (A) Voltage divider (B) Capacitor (C) Voltage regulator (D) Inductor 44. Which of the following is a typical characteristic of an Embedded System in an IoT device? (A) High processing power (B) Low energy consumption (C) Large form factor (D) High memory capacity 45. Which of the following programming paradigms is commonly used in Embedded Systems? (A) Functional programming (B) Procedural programming (C) Object-oriented programming (D) Declarative programming 46. What is the role of a PLL (Phase-Locked Loop) in an Embedded System? (A) Manage power consumption (B) Interface with peripherals (C) Synchronize clock signals (D) Handle interrupts 47. Which of the following is an example of an output device in an Embedded System? (A) Keypad (B) Microcontroller (C) LCD display (D) Flash memory 48. Which of the following is a common application of Embedded Systems in healthcare? (A) Speech recognition (B) Virtual reality (C) Gesture recognition (D) Patient monitoring systems 49. What is the purpose of a CRC (Cyclic Redundancy Check) in an Embedded System? (A) Debugging (B) Control memory access (C) Manage power consumption (D) Secure data transmission 50. Which Embedded System component is responsible for converting serial data from peripherals into parallel data for the microcontroller? (A) CAN (B) SPI (C) I2C (D) UART