Architecture of Embedded Systems MCQ’s

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This set of Embedded System Multiple Choice Questions & Answers (MCQs) focuses on “Architecture of Embedded Systems”.

1. 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

2. Which is the processor behind the IBM PC AT?
a) 80387
b) 8088
c) 80286
d) 8086

3. Which one of the following is the successor of 8086 and 8088 processor?
a) 80286
b) 80387
c) 8051
d) 8087

4. 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

5. 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

6. Which is the interrupt vector that functions as invalid opcode?
a) 9
b) 8
c) 7
d) 6

7. What kind of support does 80286 access in protected mode?
a) Real mode
b) Address access
c) Data access
d) Virtual memory

8. Which register set of 80286 form the same register set of 8086 processor?
a) AH,AL
b) BX
c) BX,AX
d) EL

9. How is expanded memory accessed in 80286?
a) Paging
b) Interleaving
c) RAM
d) External storage

10. Which is the interrupt vector in 80286 which functions for stack fault?
a) 11
b) 12
c) 14
d) 16

11. 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

12. What is the size of the address bus in 80286?
a) 20
b) 24
c) 16
d) 32

13. When is the register set gets expanded in 80286?
a) In real mode
b) In expanded mode
c) In protected mode
d) Interrupt mode

14. Which of the following possess the same set of instructions?
a) 8088 and 80286
b) 8086 and 80286
c) 8051 and 8088
d) 8051 and 8086

15. Which of the following processor possess memory management?
a) 8086
b) 8088
c) 80286
d) 8051

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