8086 Microprocessor Set 2

Bachelor of Science in Computer Science FY (BSc CS),

Bachelor of Science in Information Technology FY (BSc IT),

Bachelor of Computer Applications (BCA),

Bachelor of Science in Information Technology (BSc IT),

Bachelor of Science in Computer Science (BSc CS)

Practice Mode Previous Next
On This Page

This set of 8086 Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on 8086 Microprocessor Set 2

Q1 | The push source copies a word from source to ______
  • stack
  • memory
  • register
  • destination
Answer: stack
Q2 | LDs copies to consecutive words from memory to register and ___________
  • es
  • ds
  • ss
  • cs
Answer: ds
Q3 | INC destination increments the content of destination by _______
  • 1
  • 2
  • 30
  • 41
Answer: 1
Q4 | IMUL source is a signed _________
  • multiplication
  • addition
  • subtraction
  • division
Answer: multiplication
Q5 | _________destination inverts each bit of destination
  • not
  • nor
  • and
  • or
Answer: not
Q6 | The JS is called as ______
  • jump the signed bit
  • jump single bit
  • jump simple bit
  • jump signal it
Answer: jump the signed bit
Q7 | Instruction providing both segment base and offset address are called _____
  • below type .
  • far type
  • low type
  • high type
Answer: far type
Q8 | The conditional branch instruction specify ___________ for branching
  • conditions
  • instruction
  • address
  • memory
Answer: conditions
Q9 | ______
  • carry flag
  • conditional flag
  • common flag
  • sign flag
Answer: conditional flag
Q10 | The LES copies to words from memory to register and __________
  • ds
  • cs
  • es
  • ds
Answer: es
Q11 | The _________ translates a byte from one code to another code
  • xlat
  • xchng
  • pop
  • push
Answer: xlat
Q12 | The _______ contains an offset instead of actual address
  • sp
  • ip
  • es
  • ss
Answer: ip
Q13 | The 8086 fetches instruction one after another from __________ of memory
  • code segment
  • ip
  • es
  • ss
Answer: code segment
Q14 | The BIU contains FIFO register of size 6 bytes called _____.
  • queue
  • stack
  • segment
  • register
Answer: queue
Q15 | Signal
  • ur signal
  • vcc
  • aie
  • ground
Answer: ur signal
Q16 | The pin of minimum mode AD0-AD15 has ____________ address
  • 16 bit
  • 20 bit
  • 32 bit
  • 4 bit
Answer: 20 bit
Q17 | The pin of minimum mode AD0- AD15 has _________ data bus
  • 4 bit
  • 20 bit
  • 16 bit
  • 32 bit
Answer: 16 bit
Q18 | The address bits are sent out on lines through __________
  • a16-19
  • a0-17
  • d0-d17
  • c0-c17
Answer: a16-19
Q19 | ________ is used to write into memory
  • rd
  • wr
  • rd / wr
  • clk
Answer: wr
Q20 | The functions of Pins from 24 to 31 depend on the mode in which _______ is operating
  • 8085
  • 8086
  • 80835
  • 80845
Answer: 8086
Q21 | The RD, WR, M/IO is the heart of control for a __________ mode
  • minimum
  • maximum
  • compatibility mode
  • control mode
Answer: minimum
Q22 | In a minimum mode there is a ___________ on the system bus
  • single
  • double
  • multiple
  • triple
Answer: single
Q23 | If MN/MX is low the 8086 operates in __________ mode
  • minimum
  • maximum
  • both (a) and (b)
  • medium
Answer: maximum
Q24 | In max mode, control bus signal So,S1 and S2 are sent out in ____________ form
  • decoded
  • encoded
  • shared
  • unshared
Answer: encoded
Q25 | The ___ bus controller device decodes the signals to produce the control bus signal
  • internal
  • data
  • external
  • address
Answer: external
Previous Next