CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

Bit number _______ of coprocessor control word is the Interrupt Enable Flag.

2 / 50

Set the Interrupt vector means to change the double word sized interrupt vector within IVT.

3 / 50

In case of synchronous communication a timing signal is required to identify the start and end of a bit.

4 / 50

In case of synchronous communication a timing signal is required to identify the start and end of a bit.

5 / 50

______ is used to set time.

6 / 50

There are __________ kinds of serial communication.

7 / 50

Standard PC operates in two modes in terms of memory which are

8 / 50

The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .

9 / 50

In ____________each byte is needed to be encapsulated in start and end.

10 / 50

_____ bit is cleared to indicate the low nibble is being sent.

11 / 50

DCE is _____________

12 / 50

To access the block within cluster using BIOS services the cluster number should be converted into _____.

13 / 50

Maximum number of interrupts in a standard PC is

14 / 50

__________is used to control the printer via the BIOS

15 / 50

Hardware Interrupts are __________.

16 / 50

Standard PC can have _____ PPI.

17 / 50

The Function of I/O controller is to provide ____________.

18 / 50

The interval timer can operate in ____modes.

19 / 50

The BIOS interrupt 0x1AH can be used to configure real time clock

20 / 50

Timer interrupt occurs _______ times every second by means of hardware.

21 / 50

_____ bit is cleared to indicate the low nibble is being sent.

22 / 50

______ is Disk interrupt.

23 / 50

The keyboard makes use of interrupt number _______ for its input operations.

24 / 50

BPB stands for _________.

25 / 50

DMA stands for_________

26 / 50

Communication between keyboard and keyboard controller is __________.

27 / 50

Display device (Monitor) performs _________ I/O.

28 / 50

------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication

29 / 50

The service _________ is called the keyboard hook service.

30 / 50

In ____________each byte is needed to be encapsulated in start and end.

31 / 50

Int 14H __________ can be used to set the line parameter of the UART or COM port.

32 / 50

------------ is used to read time from RTC

33 / 50

An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O.

34 / 50

Total No. of bytes that can be stored in Keyboard Buffer is____.

35 / 50

DTE is ___________

36 / 50

________means typematic rate will be sent in next byte.

37 / 50

LPTs can be swapped.

38 / 50

REGS is a Union

39 / 50

Each paragraph in keep function is ____ bytes in size.

40 / 50

The interval timer can operate in _______ modes.

41 / 50

Display device (Monitor) performs _________ I/O.

42 / 50

PPI stands for

43 / 50

To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.

44 / 50

If CPUID instruction is not present then the processor can be a

45 / 50

Counter register can be used to divide clock signal.

46 / 50

Interrupt 9 usually reads the _________ from keyboard.

47 / 50

Int ________ is used to control the printer via the BIOS.

48 / 50

Tail of keyboard should get to get the start of buffer.

49 / 50

What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?

50 / 50

PPI is used to perform parallel communication

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