CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

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

2 / 50

Which of the following are types of ISR __________.

3 / 50

Only ________ ports are important from programming point of view.

4 / 50

DCE is _____________

5 / 50

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

6 / 50

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

7 / 50

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

8 / 50

Timer interrupt is a _________.

9 / 50

DSR stands for __________ .

10 / 50

Interrupt Vector Table (IVT) in short is a _______ bytes sized table.

11 / 50

__________is used to control the printer via the BIOS

12 / 50

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

13 / 50

If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____.

14 / 50

Hardware Interrupts are __________.

15 / 50

Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.

16 / 50

BIOS support _____________UARTS as COM ports.

17 / 50

If printer is _____ then printer sends back the ACK signal to the printer interface

18 / 50

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

19 / 50

If we use keep (0, 1000) in a TSR program, the memory allocated to it is

20 / 50

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

21 / 50

The ________function initialize the COM port whose number is passed as parameter using BIOS services.

22 / 50

PPI interconnection _______ bits is cleared to indicate low nibble is being sent.

23 / 50

UART stands for_______

24 / 50

File can be______ viewed as collection of clusters or blocks.

25 / 50

The keyboard input character scan code is received at ___ port.

26 / 50

File system used in CD’s is_______ file system

27 / 50

DSR stands for __________ .

28 / 50

NMI Stand for

29 / 50

___________ is used to identify cause of interrupt.

30 / 50

The interval timer can operate in ____modes.

31 / 50

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

32 / 50

Int 14H____________ can be used to send a byte

33 / 50

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

34 / 50

Following is not a method of I/O

35 / 50

Int_____________ service 0 can be used to set the line parameter of the UART or COM port.

36 / 50

------------ is used to read date from RTC

37 / 50

Keyboard uses port ____ as status port.

38 / 50

_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.

39 / 50

DTE is ____________.

40 / 50

Hardware Interrupts are __________.

41 / 50

To distinguish 486 with Pentium CPUID Test is used.

42 / 50

Software based flow control make use of -------- control characters

43 / 50

Int 14H______ can be used to set the line parameter of the UART or COM port

44 / 50

There are two type of communication synchronous and Anti Synchronous

45 / 50

Maximum number of interrupts in a standard PC is

46 / 50

Which port is known as Data Port______

47 / 50

_______ is LED control byte.

48 / 50

DTE is ____________.

49 / 50

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

50 / 50

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

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