Embedded Systems Question & Answers August 2, 2021 By WatElectronics This article lists 100 Embedded Systems MCQs for engineering students. All the Embedded Systems Questions & Answers given below includes solution and link wherever possible to the relevant topic. An Embedded System (ES) is a platform in which multiple hardware and software type components are integrated together on IC technology for the purpose of application-specific or multi-application communication purpose. The entire design of an embedded system mainly depends on the programming part of IC. Apollo Guidance Computer, was the first embedded system designed by developer Dr. Charles Stark Draper in the year 1980. He designed this embedded system to automatically gain output calculation from the system automatically which was based on mission-critical calculations for the system. The systems complexity depends on the design and application task that the system is designed for in other terms the number of components required to design an embedded system depends on the application development. Sensors, ADC, DAC, actuators, FPGA, software, memory, external peripherals are a few of the components of embedded system architecture. Embedded System provides advantage such as reliability, flexibility, and works in real-time. ES is used in various fields of areas such as AI, home automation, industries, etc. They lack in terms of upgradations of features, difficulty to backup data from the system, high maintenance cost, etc. 1). An embedded system is a combination of _______. Software Hardware Both a and b Devices None Hint 2). Which of the following are hardware components of an embedded system? Computer processor Device peripherals Computer memory All the above None Hint 3). Which of the following is not the hardware components of an embedded system? Linker Loader Compiler All the above None Hint 4). Which of the following are the embedded components of plug in based card? Memory Power supply External interfaces All the above None Hint 5). Which of the following are current embedded system being used in modern technology? Microprocessors Micro controllers DSP processors All the above None Hint Read more about Microprocessor. 6). Which of the following designed system factors are minimized for an embedded application? Cost Size Performance Both a and b None Hint 7). Which of the following designed system factors are optimized or enhanced for an embedded application? Performance Reliability Efficiency All the above None Hint 8). Which of the following are the components of microcontroller? RAM ROM Timers All the above None Hint 9). Which of the following are the components of a microprocessor? Single processor Arithmetic unit Logic unit All the above None Hint 10). Which of the following are the examples of microprocessor? TMS 1000 Intel 4004 Motorola 68000 All the above None Hint 11). Which of the following are the examples of microcontrollers? PIC 18F8720 MAX32620 MCU All the above None Hint Read more about Microcontroller. 12). Which of the following are the sources of embedded system? Cell phones Washing machines Smart watches All the above None Hint 13). Which of the following are medical applications of embedded systems? CT MRI PET All the above None Hint 14). Which of the following are the software environment used for an embedded system? Proteus Lab view MATLAB All the above None Hint 15). In which of the following programming language can an embedded software be programmed in? C C++ Java Both a and b None Hint 16). An embedded system is classified in to how many types? 2 3 4 1 None Hint 17). Which of the following are the class of performance and functional based requirement embedded systems? Real time Stand alone Mobile All the above None Hint 18). Which of the following are the class of microcontrollers performance based embedded systems? Small scale Medium scale Sophisticated scale All the above None Hint 19). Which of the following are the standard peripherals of an embedded system? RS232 Ethernet CAN bus All the above None Hint 20). Which of the following is an example of small scale embedded system? Printer DSP Multipliers IP cameras None Hint 21). Which of the following is an example of medium scale embedded system? Printer DSP Multipliers IP cameras None Hint 22). Which of the following is an example of sophisticated scale embedded system? Printer DSP Washing machines IP cameras None Hint 23). Which of the following are examples of a standalone embedded system? Smart digital wrist watch Doorbell Washing machines All the above None Hint 24). In which of the following type of embedded system reaching its dead line to complete a task may vary? Microwave oven Traffic lights Buzzer Alarm None Hint 25). If the deadline of an embedded system cannot complete its task within its deadline then it is called _____ type of embedded system. Soft real time Hard real time Stand alone Networked embedded system None Hint Embedded Systems Important Questions for Interviews 26). If the task deadline of an embedded system is completed within its deadline then it is called ______ type of embedded system. Soft real time Hard real time Stand alone Networked embedded system None Hint 27). Which of the following is an example of an embedded system that completes its task within its deadline? Microwave oven Traffic lights Buzzer Both b and c None Hint 28). In which of the following embedded systems devices communicates with servers? Soft real time Hard real time Stand alone Networked embedded systems None Hint 29). Which of the following are the examples of networked embedded systems? ATM machine Smart watch Micro-oven Both a and b None Hint 30). LAN stands for _________. Local Area Network Local Avoiding Network Location Area Network None of the above None Hint Read more about LAN. 31). WAN stands for _______. Wide Area Network Wide Avoiding Network Wonder Area Network None of the above None Hint 32). Which of the following software represents machine based code in target base code and verifies errors in code? Compiler Assembler Debugger Both a and b None Hint 33). Which of the following embedded system software converts each line of assembly based code to machine based code at a time? Compiler Assembler Debugger Both a and b None Hint 34). Which of the following ES software are the examples of Assembler software? C C++ GNU Java None Hint 35). Which of the following ES software are the examples of compiler software? C C++ Both a and b GAS None Hint 36). Which of the following hardware is used as alternative for an embedded system? ICE Emulator Memory Counters None Hint 37). An embedded system contains how many number of bit processor? 2 3 4 5 None Hint 38). Which of the following device is volatile memory? Flash drives Computer BIOS Motherboard All the above None Hint 39). Which of the following is non volatile memory? Flash drives Computer BIOS Motherboard Both b and c None Hint 40). Which of the following IC are microprocessors? MC6800 8085 8086 All the above None Hint 41). Which of the following IC are microcontrollers? MC6800 8051 ATmega328 Both b and c None Hint Read more about 8051 Microcontroller. 42). MC6800 type processor is designed with how many bits? 4 bit 8 bit 16 bit 32 bit None Hint 43). 8085 type processor is designed with how many bits? 4 bit 8 bit 16 bit 32 bit None Hint Read more about 8085 Microprocessor. 44). Which of the following specifies pin number 40 in 8051 controller IC? Vcc Vdd RST Vss None Hint 45). Which of the following specifies pin number 14 in 8051 controller IC? Vcc Vdd RST T0 None Hint 46). 8085 type processor is designed with how many bits? 4 bit 8 bit 16 bit 32 bit None Hint 47). 8051 type controller is designed with how many bits? 4 bit 8 bit 16 bit 32 bit None Hint 48). 8051 type controller IC has _______ number pin. 20 10 30 40 None Hint 49). Atmega 328 controller is designed with how many bits? 4 bit 8 bit 16 bit 32 bit None Hint 50). Which of the following are applications of Atmega 328? Arduino UNO Arduino Nano Arduino Mini pro All the above None Hint Read more about Arduino UNO. Embedded Systems Exam Questions & Answers 51). Which of the following are the characteristics of an ES? Unique functionality Constraint metrics Real time based application All the above None Hint 52). Which of the following are advantages of embedded system? High technology Long marketing High cost Minimum power consumption None Hint 53). Which of the following are disadvantages of embedded system? High technology Long marketing High cost Both a and b None Hint 54). Which of the following are the basic components of an ES architecture? Sensor ADC, DAC converters Actuators All the above None Hint Read more about Sensor. 55). Which of the following component of basic ES architecture relates DAC result with expected result? Sensor Processor Actuators Timers None Hint 56). Which of the following component of basic ES architecture executes tasks and stockpiles in memory? Sensor Processor Actuators Timers None Hint 57). Which of the following is considered as the heart component of ES? Software Processor Memory Hardware None Hint 58). Which of the following is the examples of general purpose based processors? Microprocessor GPP ASIC ASSP None Hint 59). Which of the following ES is called micro-computer? Microprocessor Micro controller ASIC ASSP None Hint 60). On which of the following frequency do microprocessor operates? ~1MHz 10 MHz 1 KHz 10 KHz None Hint 61). Which of the following specifies pin 9 in 8051 Microcontroller IC? RST Vss T0 Ports None Hint 62). Which of the following are characteristics of Von-Neumann based architecture? One memory used by multiple data and code Same clock cycles Complex type design Employs different bus None Hint 63). Which of the following are characteristics of Harvard based architecture? Same clock cycles Complex type design Employs different bus All the above None Hint 64). Which of the following are characteristics of CISC processor? Enhance clock type cycles Follows pipeline Smaller based instruction set All the above None Hint Read more about CISC Processor. 65). Which of the following are characteristics of RISC processor? Less clock type cycles Follows pipeline Smaller based instruction set All the above None Hint Read more about RISC Processor. 66). An 8086 type microprocessor contains _______ number of data based lines. 12 13 16 20 None Hint 67). An 8086 type microprocessor contains _______ number of address based lines. 12 13 16 20 None Hint 68). 8085 processor was designed by _________. Motorola IBM Intel Samsung None Hint 69). 8085 processor contains _________ bit numbered of registers. 12 bit 6 bit 13 bit 128 bit None Hint 70). DMA stands for _________. Directed Memory Access Direct Medium Access Direction Media Access None of the above None Hint 71). Which of the following microprocessor executes solo instruction type with multiple low level functions? CISM RISM Superscalar ASIC None Hint 72). Which of the following are the functions of compiler? Parsing Debugging Code optimizing Both a and c None Hint 73). Which of the following are debugging tools? Compiler Simulator Emulator Both b and c None Hint 74). Which of the following are the components of microcontroller starter type kit? Evaluation hardware board Software tools like linker In system type programmer All the above None Hint 75). Which of the following are serial type communication interfaces for microprocessor? RS-232 RS 422 SPI All the above None Hint Embedded Systems MCQs With Answers 76). Which of the following is a Field type bus in microprocessor? CAN Bus LIN Bus PROFIBUS All the above None Hint 77). Which for the following are debugging tools? JTAG ISP ICSP All the above None Hint 78). Which of the following was the very first microprocessor? 4004 8008 8086 8051 None Hint 79). 8051 has ________ number of ROM space. 4K 8K 0K 128K None Hint 80). 8051 has ________ number of RAM space. 4K 8K 0K 128K None Hint 81). 8051 has _________ number of timers. 1 2 3 4 None Hint 82). 8051 controller IC has _______ number of pins. 32 64 51 99 None Hint 83). Which of the following has common serial port? 8052 8051 8031 All the above None Hint 84). 8052 processor has ______ number of ROM space. 4K 8K 0K 128K None Hint 85). 8052 processor has ______ number of RAM space. 4K 8K 0K 128K None Hint 86). Which of the following are application of ES in robotics? Drones Under hydro vehicles Industrial robots All the above None Hint 87). Which of the following are applications of ES in medical field? Cardiac monitoring system ECG Infusion pumps All the above None Hint 88). Which of the following are the applications of ES in automotive field? Engine control Ignition System Brake system All the above None Hint 89). Which of the following are the applications of ES in networking field? Hub Router Gateways All the above None Hint 90). Which of the following are the applications of ES in home automation? Tv Camera Digital clock All the above None Hint 91). Which of the following are the applications of ES in Automobiles? Air Bags Windows Door Locks All the above None Hint 92). Which of the following are the applications of ES in industrial control? Robotics Control system Shuttles All the above None Hint 93). A program contains ________ number of bit register to store address of succeeding instruction. 16 bit 8 bit 128 bit 64 bit None Hint 94). Which of the following is the location for a stack pointer? RAM ROM DVD All the above None Hint 95). Which of the following are the components of embedded programming instruction? Opcode Mnemonics Operands All the above None Hint 96). Which of the following is an example of opcode? 2 ADD A,B @# None of the above None Hint 97). Which of the following are examples of operands? 1+2 ADD A,B @# None of the above None Hint 98). Which of the following are the storage registers used in 8051 controller? R register Data pointer Stack pointer All the above None Hint Read more about Stack Pointer. 99). Which of the following is an example of immediate type addressing mode in ES? MOV A, #6AH MOV A, 04H MOV A, R4 All the above None Hint 100). Which of the following is an example of direct type addressing mode in ES? MOV A, #6AH MOV A, 04H MOV A, R4 All the above None Hint Time's up
