CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

Maximum number of interrupts in a standard PC is

2 / 50

Command register is an _____ bit register

3 / 50

File can be______ viewed as collection of clusters or blocks.

4 / 50

There are two main types of interrupts namely _________________.

5 / 50

The interval timer can operate in _______ modes.

6 / 50

BIOS support _____________UARTS as COM ports.

7 / 50

Following is not a method of I/O

8 / 50

By cascading two DMAs ____ bits can be transferred.

9 / 50

In self test mode the output of the UART is routed to its input.

10 / 50

Interrupt ______ is used to get or set the time.

11 / 50

NMI Stand for

12 / 50

Which port is known as Data Port______

13 / 50

Maximum number of interrupts in a standard PC is

14 / 50

To distinguish 486 with Pentium CPUID Test is used.

15 / 50

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

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

PPI stands for

20 / 50

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

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

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

25 / 50

______ is Disk interrupt.

26 / 50

Interrupt 9 usually reads the _________ from keyboard.

27 / 50

____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.

28 / 50

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

29 / 50

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

30 / 50

BPB stands for _________.

31 / 50

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

32 / 50

The interval timer can operate in ____modes.

33 / 50

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

34 / 50

LPTs can be swapped.

35 / 50

_________ is used to identify the cause of interrupt.

36 / 50

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

37 / 50

The service number is usually placed in the ________ register.

38 / 50

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

39 / 50

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

40 / 50

There are __________ kinds of serial communication.

41 / 50

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

42 / 50

Hardware Interrupts are __________.

43 / 50

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

44 / 50

Hardware Interrupts are __________.

45 / 50

Operating system name contains ____ bytes in boot block.

46 / 50

There are two main types of interrupts, namely

47 / 50

Keyboard Status Byte is located at the address

48 / 50

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

49 / 50

There are two type of communication synchronous and Anti Synchronous

50 / 50

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

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