CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

File system used in CD’s is_______ file system

2 / 50

DTE is ____________.

3 / 50

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

4 / 50

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

5 / 50

Which port is known as Data Port______

6 / 50

Display device (Monitor) performs _________ I/O.

7 / 50

The amount of memory above conventional memory (extended memory) can be determined using the service _______.

8 / 50

Control information in files is maintained using

9 / 50

DSR stands for __________ .

10 / 50

Interrupt _____ is empty; we can use its vector as a flag.

11 / 50

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

12 / 50

________ is a device incorporated into the PC to update time even if the computer is off.

13 / 50

_________ is used to identify the cause of interrupt.

14 / 50

The following command “outportb (0x61,inportb(0x61) & 0xFC);” will

15 / 50

To store each character in keyboard buffer ____ bytes are required.

16 / 50

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

17 / 50

To distinguish 486 with Pentium CPUID Test is used.

18 / 50

We have set the bit No. 7 of IMR(Interrupt Mask Register) to unmask the Interrupt so that interrupt _____ can occur at ____ line.

19 / 50

______ is Disk interrupt.

20 / 50

The BIOS interrupt ________ can be used to configure RTC.

21 / 50

____ No. of bytes are used to store the character in the keyboard buffer.

22 / 50

Timer interrupt is a _________.

23 / 50

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

24 / 50

Register can be used to divide frequency is _________

25 / 50

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

26 / 50

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

27 / 50

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

28 / 50

Which of the following are types of ISR __________.

29 / 50

The interval timer can operate in _______ modes.

30 / 50

The ____________ function simply enables the self test facility within the modem control register

31 / 50

The output on the monitor is controlled by a controller called __________within the PC.

32 / 50

REGS is a Union

33 / 50

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

34 / 50

Following is not a method of I/O

35 / 50

______ is used to set time.

36 / 50

BIOS support _____________UARTS as COM ports.

37 / 50

Hardware Interrupts are __________.

38 / 50

UART stands for_______

39 / 50

The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).

40 / 50

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

41 / 50

DTE is ___________

42 / 50

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

43 / 50

A single interrupt controller can arbitrate among ____ different devices.

44 / 50

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

45 / 50

Int 14H____________ can be used to send a byte

46 / 50

The PPI acts as an interface between the CPU and a parallel ________ .

47 / 50

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

48 / 50

PPI stands for _____________.

49 / 50

If keyboard buffer is empty the head and tail points at the same location.

50 / 50

The interval timer can operate in ____modes.

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