MCQs: Emerging Trends – Unit 1 Embedded System

1. Embedded systems applications typically involve processing information as

• a) Block level
• b) Logical volumes
• c) Distance
• d) Signals

2. Deadline-driven constraints so called

• a) Reality-time constraints
• b) Real-time constraints
• c) Real-data constraints
• d) None of above

3. Processor must accept and process frame before next frame arrives, typically called

• a) Hard real-time systems
• b) Real-time constraints
• c) Real-data constraints
• d) Soft real-time systems

4. Average time for a particular task is constrained as well as is number of instances when some maximum time is exceeded, stated approach is known as

• a) Hard real-time systems
• b) Real-data constraints
• c) Real-time constraints
• d) Soft real-time systems

5. Caches can be converted into software-managed on-chip memories via

• a) Block level
• b) Seek time
• c) Line locking
• d) Line blocking

6. Which of the following is a coprocessor of 80386

• a) 80387
• b) 8087
• c) 8089
• d) 8088

7. Name the processor which helps in floating point calculations

• a) microprocessor
• b) microcontroller
• c) coprocessor
• d) controller

8. An embedded system must have

• a) hard disk
• b) processor and memory
• c) operating system
• d) processor and input-output unit(

9. SoC stands for

• a) System on Chip
• b) Size on Chip
• c) Simulation on Chip
• d) Simulation on Computer

10. What is the processor used by ARM7?

• a) 8-bit CISC
• b) 8-bit RISC
• c) 32-bit CISC
• d) 32-bit RISC

11. What is the instruction set used by ARM7?

• a) 16-bit instruction set
• b) 32-bit instruction set
• c) 64-bit instruction set
• d) 8-bit instruction set

12. How many registers are there in ARM7?

• a) 35 register( 28 GPR and7SPR)
• b) 37 registers(28 GPR and 9SPR)
• c) 37 registers(31 GPR and 6SPR)
• d) 35 register(30 GPR and 5 SPR)

13. Which of the following has the same instruction set as ARM7

• a) ARM6
• b) ARMv3
• c) ARM71a0
• d) ARMv4T

14. ARM stands for _________

• a) Advanced RISC Machine
• b) Advanced RISC Methadology
• c) Advanced Reduced Machine
• d) Advanced Reduced Methadology

15. In which of the following ARM processors virtual memory is present?

• a) ARM7DI
• b) ARM7TDMI-S
• c) ARM7TDMI
• d) ARM7EJ-S

16. Embedded systems applications typically involve processing information as ________

• a) Distance
• b) Signals
• c) Block level
• d) Logical volumes

17. The internal RAM memory of the 8051 is:

• a) 32 bytes
• b) 64 bytes
• c) 128 bytes
• d) 256 bytes

18. The 8051 can handle ________ interrupt sources.

• a) 3
• b) 4
• c) 5
• d) 6

19. In AVR what is the ISR address for an external hardware interrupt?

• a) 0002h
• b) 0004h
• c) 0006h
• d) all of the mentioned

20. In AVR, which of the following registers are not used for programming timers?

• a) TCNT
• b) TCON
• c) TIFR
• d) None of the mentioned

21. PAL stands for…

• a) Programmable Array Logic
• b) Programmable Logic Array
• c) Programmable Array Loaded
• d) None of the these

22. Which of the following full form of VLSI?

• a) Very Long Single Integration
• b) Very Large Scale Integration
• c) Very Least Scale Integration
• d) None of the these

23. The number of elements in the Open IoT Architecture?

• a) 6 elements
• b) 8 elements
• c) 7 elements
• d) 3 elements

24. Global Sensor Network is built for _________

• a) Reducing cost and time for development
• b) Reducing cost and increasingtime for development
• c) Increasing cost and increasing time fordevelopmentvelopment
• d) Increasing cost and decreasing time for development

25.  ___________ is a community that is working together to establish an IoT architecture.

• a) Eclipse IoT
• b) Red Hat
• c) Intercloud
• d) Bot 2 Bot

26. 1. IANA stands for:

• a) Internal Assessment Numerical Access
• b) Internet Association NumbersAuthority
• c) International Aid for Network Automation
• d) Internet Assigned Numbers Authority

27. standard port number for secure MQTT is:

• a) 1883
• b) 8000
• c) 8883
• d) 8888

28. Terms SSL and TLS stand for:

• a) Secure Socket Layers and Transport LayerSession
• b) Secure Socket Layers and Transport LayerSecurity
• c) Secure Socket Layout and Transport LevelSessionSecurity
• d) Session Socket Layers and TransportLayer

29. Which one out of these is not a data link layer technology:

• a) Bluetooth
• b) UART
• c) WiFi
• d) HTTP

30. Which transport layer protocols is used by DHCP?

• a) RSVP
• b) TCP
• c) DCCP
• d) UDP

31. What is a firewall in computer networks:

• a) A system designed to prevent unauthorized access
• b) A web browser
• c) The physical boundary of network
• d) The Network Operating System

32. Machine learning is

• a) The selective acquisitionofknowledge through the use of manual programs
• b) The autonomous acquisitionofknowledge through the use of manual programs
• c) The selective acquisition of knowledge through the use of computer programs
• d) The autonomous acquisition of knowledge through the use of computer programs

33. How many times setup function runs in Arduino IDE:

• a) None of the above
• b) 10
• c) 2
• d) 1

34. Raspbian is:

• a) Assembler
• b) Language
• c) Compiler
• d) OS

35. CGI stands for:

• a) Common Gateway Interest
• b) Common Gateway Interrupt
• c) Common Gate Interference
• d) Common Gateway Interface

36. MQTT is:

• a) Based on client-server architecture
• b) Based on publish-subscribearchitecture
• c) Based on both of the above
• d) Based on none of the above

37. What is the access point (AP) in wireless LAN?

• a) none of the mentionedevelopment
• b) wireless devices itself
• c) both (a) and (b)
• d) device that allows wireless devices to connect to a wired network

38. In wireless ad-hoc network

• a) none of the mentioned
• b) access point is not required
• c) nodes are not required
• d) access point is must

39. What is WPA?

• a) wi-fi protected access
• b) wired process access
• c) wired protected access
• d) wi-fi process access

40. An interconnected collection of piconet is called

• a) micronet
• b) scatternet
• c) mininet
• d) none of the mentioned

41. Secure shell (SSH) network protocol is used for

• a) remote command-line loginSession
• b) remote command executionSession
• c) all of the mentioned
• d) secure data communication

42. The network layer concerns with

• a) bits
• b) frames
• c) none of the mentioned
• d) packets

43. Ethernet frame consists of

• a) none of the mentioned
• b) IP address
• c) both (a) and (b)
• d) MAC address

44. What is internet?

• a) interconnection of local area networks
• b) a vast collection of different networks
• c) a single network
• d) none of the mentioned

45. What is the clock frequency of 8087?

• a) 10 MHz
• b) 5 MHz
• c) 6 MHz
• d) 4 MHz

46. How are negative numbers stored in a coprocessor?

• a) 1’s complement
• b) 2’s complement
• c) decimal
• d) gray

47. How many bits are used for storing signed integers?

• a) 2
• b) 4
• c) 8
• d) 16

48. Which of the processor has an internal coprocessor?

• a) 8087
• b) 80287
• c) 80387
• d) 80486DX

49. What are the two major sections in a coprocessor?

• a) control unit and numeric control unit
• b) integer unit and control unit
• c) floating point unit and coprocessor unit
• d) coprocessor unit and numeric control unit

50. Which are the processors based on RISC?

• a) SPARC
• b) 80386
• c) MC68030
• d) MC68020

51. What is 80/20 rule?

• a) 80% instruction is generated and 20% instruction is executed
• b) 80% instruction is executed and 20% instruction is generated
• c) 80%instruction is executed and 20% instruction is not executed
• d) 80% instruction is generated and 20% instructions are not generated

52. Which of the architecture is more complex?

• a) SPARC
• b) MC68030
• c) MC68030
• d) 8086

53. Which is the first company who defined RISC architecture?

• a) Intel
• b) IBM
• c) Motorola
• d) MIPS

54. Which of the following processors execute its instruction in a single cycle?

• a) 8086
• b) 8087
• c) 8088
• d) MIPS R2000

55. Which of the following is a coprocessor of 80386?

• a) 80387
• b) 8087
• c) 8088
• d) 8089

56. Name the processor which helps in floating point calculations.

• a) microprocessor
• b) microcontroller
• c) coprocessor
• d) controller

57. Which is the coprocessor of 8086?

• a) 8087
• b) 8088
• c) 8086
• d) 8080

58. Which of the following is a coprocessor of Motorola 68000 family?

• a) 68001
• b) 68011
• c) 68881
• d) 68010

59. Which of the following processors can perform exponential, logarithmic and trigonometric functions?

• a) 8086
• b) 8087
• c) 8080
• d) 8088

60. How many stack register does an 8087 have?

• a) 4
• b) 8
• c) 16
• d) 32

61. Which of the following processor can handle infinity values?

• a) 8080
• b) 8086
• c) 8087
• d) 8088

62. Which coprocessor supports affine closure?

• a) 80187
• b) 80287
• c) 80387
• d) 8088

63. Which one is the floating point coprocessor of 80286?

• a) 8087
• b) 80187
• c) 80287
• d) 80387

64. How many pins does 8087 have?

• a) 40 pin DIP
• b) 20 pin DIP
• c) 40 pin
• d) 20 pin

65. Which one of the following offers CPUs as integrated memory or peripheral interfaces?

• a) Microcontroller
• b) Microprocessor
• c) Embedded system
• d) Memory system

66. Which of the following offers external chips for memory and peripheral interface circuits?

• a) Microcontroller
• b) Microprocessor
• c) Peripheral system
• d) Embedded system

67. How many bits does an MC6800 family have?

• a) 16
• b) 32
• c) 4
• d) 8

68. Which of the following is a 4-bit architecture?

• a) MC6800
• b) 8086
• c) 80386
• d) National COP series

69. What is CISC?

• a) Computing instruction set complex
• b) Computing instruction set complex
• c)  Complimentary instruction set computing
• d) Complex instruction set complementary

70. How is the protection and security for an embedded system made?

• a) OTP
• b) IPR
• c) Memory disk security
• d) Security chips

71. Which of the following possesses a CISC architecture?

• a)  MC68020
• b) ARC
• c) Atmel AVR
• d) Blackfin

72. Which of the following is a RISC architecture?

• a) 80286
• b) MIPS
• c) Zilog Z80
• d) 80386

73. Which one of the following is board based system?

• a) Data bus
• b)  Address bus
• c) VMEbus
• d) DMA bus

74. VME bus stands for

• a) Versa module Europa bus
• b)  Versa module embedded bus
• c) Vertical module embedded bus
• d) Vertical module Europa bus

75. the ARM processors don’t support Byte addressability.

• a) Block level
• b) Logical volumes
• c) Distance
• d) Signals

76. Deadline-driven constraints so called

• a) Reality-time constraints
• b) Real-time constraints
• c) Real-data constraints
• d) None of above

77. Processor must accept and process the frame before the next frame arrives, typically called

• a) Hard real-time systems
• b) Real-time constraints
• c) Real-data constraints
• d) Soft real-time systems

78.  What are the essential tight constraint/s related to the design metrics of an embedded system?

• a) Ability to fit on a single chip
• b) Low power consumption
• c) Fast data processing for real-time operations
• d)  All of the above

79. Which function/s is/are provided by Integrated Memory Management Unit in 80386 architecture?

• a) Optional on-chip paging
• b) 4 levels of protection
• c) Virtual Memory Support
• d)  All of the above

80. Abort mode generally enters when _______

• a) an attempt access memory fails
• b) low priority interrupt is raised
• c) ARM processor is on rest
• d) undefined instructions are to be handled

81. What is/are the configuration status of control unit in RISC Processors?

• a) Hardwired
• b) Microprogrammed
• c) Both a and b
• d) None of the above

82.  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

83. ARM processors where basically designed for _______

• a) Main frame systems
• b) Distributed systems
• c) Mobile systems
• d) Super computers

84. Who has invented flash memory?

• a) Dr.FujioMasuoka
• b) John Ellis
• c) Josh Fisher
• d) John Ruttenberg

85. Which of the following is serial access memory?

• a) RAM
• b) Flash memory
• c) Shifters
• d) ROM

86. Which is the early form of non-volatile memory?

• a) magnetic core memory
• b) ferrimagnetic memory
• c) anti-magnetic memory
• d) anti-ferromagnetic

87. Which of the following memories has more speed in accessing data?

• a) SRAM
• b) DRAM
• c) EPROM
• d) EEPROM

88. In which memory, the signals are multiplexed?

• a) DRAM
• b) SRAM
• c) EPROM
• d) EEPROM

89. How many main signals are used with memory chips?

• a) 2
• b) 4
• c) 6
• d) 8

90. What is the purpose of address bus?

• a) to provide data to and from the chip
• b) to select a specified chip
• c) to select a location within the memory chip
• d) to select a read/write cycle

91. Which are the two main types of processor connection to the motherboard?

• a) sockets and slots
• b) sockets and pins
• c) slots and pins
• d) pins and ports

92. Which of the following has programmable hardware?

• a) microcontroller
• b) microprocessor
• c) coprocessor
• d) FPGA

93. Who invented TriMedia processor?

• a) Intel
• b) IBM
• c) Apple
• d) NXP Semiconductor

94. Which one of the following is the successor of 8086 and 8088 processor?

• a) 80286
• b) 80387
• c) 8051
• d) 8087

95. Which is the processor behind the IBM PC AT?

• a) 80387
• b) 8088
• c)  80286
• d) 8086

96. Which are the two modes of 80286?

• a) Real mode and protected mode
• b) Mode1 and mode2
• c) Alternate and main
• d) Mode A and mode B

97. Which register set of 80286 form the same register set of 8086 processor?

• a) AH,AL
• b) BX
• c) BX,AX
• d) EL

98. Which are the 4 general purposes 16 bit register in Intel 80286?

• a) CS,DS,SS,ES
• b) AX,BX,CX,DX
• c) IP,FL,DI,SI
• d) DI,SI,BP,SP

99. Which are the 4 segmented registers in intel 80286?

• a) AX,BX,CX,DX
• b) AS,BS,CS,DS
• c) SP,DI,SI,BP
• d)  IP,FL,SI,DI

100. How is expanded memory accessed in 80286?

• a) Paging
• b) Interleaving
• c) RAM
• d) External storage

101. When is the register set gets expanded in 80286?

• a)  In real mode
• b) In expanded mode
• c) In protected mode
• d) Interrupt mode

102. Which are the two register available in the protected mode of 80286?

• a) General and segmented
• b) General and pointer
• c) Index and base pointer
• d)  Index and segmented

103. What kind of support does 80286 access in protected mode?

• a) Real mode
• b) Address access
• c) Data access
• d) Virtual memory

104. Which of the following is a process of analyzing the set of possible designs?

• a) design space exploration
• b) scheduling
• c) compilation
• d)  hardware/software partitioning

105.  In which design activity, the loops are interchangeable?

• a) compilation
• b) scheduling
• c) high-level transformation
• d) hardware/software partitioning

106. Name the processor which helps in floating point calculations

• a) microprocessor
• b) microcontroller
• c) coprocessor
• d) controller

107. Which is the coprocessor of 8086?

• a) 8087
• b) 8088
• c) 8086
• d) 8080

108. Which is the coprocessor of 80386?

• a) 80287
• b) 80486DX
• c) 80387
• d) 8087

109. Which of the following processors has an internal coprocessor?

• a) 8086
• b) 80286
• c) 80386
• d) 80486DX

110. Which is the coprocessor of 80286?

• a) 8087
• b) 80187
• c) 80287
• d) 80387

111. Which of the following is not an example of embedded system?

• a) washing machine
• b) MP3 player
• c) calculator
• d) desktop PC

112. Which of the following is not a characteristic of an embedded system?

• a) single-functioned
• b) tightly constrained
• c) reactive and real time
• d) general purpose

113. Which of the following is not a common memory in embedded systems?

• a) RAM
• b) ROM
• c) PROM
• d) Hard Disk