Which of the following is the destination register in IN instruction?

• A) AL or AX
• B) BL or BX
• C) CL or CX
• D) DL or DX

According to the IBM standard, port number(s) for the parallel port is/are __________

• A) 20 and 21
• B) 378
• C) 60 to 64
• D) 380

The execution of the instruction "mov word [ES:160], 0x1230" will print a character on screen at the ____________ column of the ____________ row.

• A) first, third
• B) second, second
• C) first, second
• D) second, first

Programmable interrupt controller has ___________ ports.

• A) 1
• B) 4
• C) 2
• D) 3

Which of the following are the data pins used to take data from the processor to the device connected through parallel port?

• A) 18 to 25
• B) 2 to 9
• C) 20 to 27
• D) 10 to 17

INT instruction takes a _________ byte(s) argument varying from 0-255.

• A) 1
• B) 2
• C) 6
• D) 4

Which of the following Interrupt Requests (IRQ) is connected to serial port COM 1?

• A) IRQ 7
• B) IRQ 5
• C) IRQ 6
• D) IRQ 4

The convention to return a value from a subroutine is to use the ____________ register.

• A) BX
• B) AX
• C) DX
• D) CX

In Intel 8088, the Interrupt Vector Table occupies ____________ of memory.

• A) 4 bytes
• B) 1 KB
• C) 1 MB
• D) 64 KB

Which of the following is the order of pushing the contents on stack during the execution of INT instruction?

• A) FLAGS, IP, and then CS
• B) FLAGS, CS, and then IP
• C) IP, CS, and then FLAGS
• D) CS, IP, and then FLAGS

Programmable Interrupt Controller (PIC) has ____________ input signal(s) and ____________ output signal(s).

• A) eight, one
• B) eight, eight
• C) one, one
• D) one, eight

Which of the following is the interrupt number for debug interrupt?

• A) INT 2
• B) INT 0
• C) INT 1
• D) INT 3

Which of the following instructions, selects the peripheral address space?

• A) DEC
• B) ADD
• C) IN
• D) MOV

The parallel port connector is called ___________.

• A) RS-232
• B) DB-25
• C) TD-25
• D) BD-25

The _________ and DPL have the same meaning as in data and code descriptors.

• A) O
• B) P
• C) T
• D) S

_________ is a special type of interrupt that returns to the same instruction instead of the next instruction.

• A) Debug interrupt
• B) Divide overflow interrupt
• C) Change of sign interrupt
• D) Arithmetic overflow interrupt

REP allows an instruction to be _____________ CX times.

• A) replaced
• B) repositioned
• C) reported
• D) repeated

Scrolling is the process of moving one or more lines towards the top or bottom of the screen, and the new line that appears on the top or bottom is___________.

• A) multiplied
• B) added
• C) cleared
• D) joined

REP allows the instruction to be repeated _________ times.

• A) AX
• B) CX
• C) DX
• D) BX

Total number of reserved interrupts in Intel 8088 are ______________.

• A) 3
• B) 8
• C) 255
• D) 5