Real Addressing Mode MCQ’s

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This set of Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on “Real Addressing Mode”.

1. In real addressing mode, the 80286 addresses a physical memory of
a) 16 MB
b) 8 MB
c) 2 MB
d) 1 MB

2. In real addressing mode, the 80286 operates at a speed
a) faster than that of 8086
b) half of that of 8086
c) slower than that of 8086
d) same as that of 8086

3. The 80286 CPU acts just like that of 8086 when operated in
a) real addressing mode
b) protected virtual address mode
c) real and protected virtual address modes
d) none of the mentioned

4. In physical memory, if the segment size limit is exceeded by the instruction or data then
a) instruction is not executed
b) exception is generated
c) saves to next segment automatically
d) none of the mentioned

5. In the real mode, the memory that is reserved for interrupt vector table is
a) first 2 KB of memory
b) first 1 KB of memory
c) last 2 KB of memory
d) last 1 KB of memory

6. When 80286 is reset, it always starts its execution in
a) protected virtual addressing mode
b) real addressing mode
c) either real or protected virtual address modes
d) none of the mentioned

7. The 80286 reserves fixed area of physical memory for
a) system initialization
b) interrupt vector table
c) system initialization and interrupt vector table
d) none of the mentioned

8. In the real mode, the memory that is reserved for system initialization is
a) from 004FFH to 0FFFFH
b) from 004FFH to 05FFFH
c) from FFFF0H to FFFFFH
d) from FFF00H to FFFFFH

9. The 80286 in real addressing mode performs
a) initialization of IP
b) enables interrupts
c) sets up descriptor table
d) all of the mentioned

10. In real address mode, while addressing the physical memory, the 80286 uses the signal
a) HLDA
b) BHE (active low)
c) CAP
d) HOLD

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