Which of the following instructions is used to read a character from the keyboard port?

• A) in al, 0x60
• B) out al, 0x60
• C) in al, 0x21
• D) in al, dx

The correlation process from the interrupt number to the interrupt handler uses a table called _________.

• A) Interrupt Handling Table
• B) Interrupt Correlation Table
• C) Interrupt Calling Table
• D) Interrupt Vector Table

Every bit of port _______ corresponds to one of the Interrupt Request (IRQ) lines.

• A) 20
• B) 19
• C) 21
• D) 18

____________ is a special instruction that loads a general purpose register, and a segment register from two consecutive memory locations.

• A) MOVS
• B) CALL
• C) LES
• D) SCAS

Which of the following Interrupt Requests (IRQ) is derived by the keyboard?

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

Which of the following Interrupt Requests (IRQ) is used for a floppy disk drive?

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

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