8086 Microprocessor
1.

 8086 Microprocessor supports _______ modes of operation.

A.  

2

B.  

3

C.  

4

D.  

5

2.

Which of the following is not a Features of 8086?

A.  

It uses two stages of pipelining

B.  

It is available in 3 versions based on the frequency of operation

C.  

Fetch stage can prefetch up to 6 bytes of instructions

D.  

It has 512 vectored interrupts.

3.

8086 can access up to?

A.  

512KB

B.  

1Mb

C.  

2Mb

D.  

256KB

4.

 8086 has ___ address bus.

A.  

16-bit

B.  

18-bit

C.  

20-bit

D.  

24-bit

5.

Which flag is set to 1 when the result of arithmetic or logical operation is zero else it is set to 0?

A.  

Binary bit

B.  

Zero flag

C.  

Sign flag

D.  

Overflow flag

6.

 Which flag represents the result when the system capacity is exceeded?

A.  

Carry flag

B.  

Auxiliary flag

C.  

Trap flag

D.  

Overflow flag

7.

It is an edge triggered input, which causes an interrupt request to the microprocessor.

A.  

NMA

B.  

INTR

C.  

INTA

D.  

ALE

8.

 It is used to write the data into the memory or the output device depending on the status of M/IO signal.

A.  

IR

B.  

HLDA

C.  

HR

D.  

WR

9.

 Which intruction is Used to load the address of operand into the provided register?

A.  

LEA

B.  

LDS

C.  

LES

D.  

LAHF

10.

 The different ways in which a source operand is denoted in an instruction is known as

A.  

Instruction Set

B.  

Interrupts

C.  

8086 Configuration

D.  

Addressing Modes