CS609-Midterm
1 / 50
File system used in CD’s is_______ file system
2 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
3 / 50
The interval timer can operate in _______ modes.
4 / 50
The Function of I/O controller is to provide ____________.
5 / 50
A software interrupt does not require EOI (End of interrupt).
6 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
7 / 50
The BIOS interrupt ________ can be used to configure RTC.
8 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
9 / 50
In self test mode the output of the UART is routed to its input.
10 / 50
______ is Disk interrupt.
11 / 50
In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
12 / 50
The service number is usually placed in the ________ register.
13 / 50
By cascading two DMAs ____ bits can be transferred.
14 / 50
On the execution of IRET instruction, number of bytes popped from stack is
15 / 50
Operating system name contains ____ bytes in boot block.
16 / 50
Timer interrupt occurs _______ times every second by means of hardware.
17 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
18 / 50
If CPUID instruction is not present then the processor can be a
19 / 50
If keyboard buffer is empty the head and tail points at the same location.
20 / 50
File can be______ viewed as collection of clusters or blocks.
21 / 50
There are two main types of interrupts, namely
22 / 50
A single interrupt controller can arbitrate among ____ different devices.
23 / 50
Standard PC operates in two modes in terms of memory which are
24 / 50
Counter register can be used to divide clock signal.
25 / 50
____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
26 / 50
27 / 50
DSR stands for __________ .
28 / 50
------------ is used to set time from RTC
29 / 50
The interval timer can operate in ____modes.
30 / 50
LPTs can be swapped.
31 / 50
If printer is _____ then printer sends back the ACK signal to the printer interface
32 / 50
Maximum number of interrupts in a standard PC is
33 / 50
34 / 50
Int 14H____________ can be used to send a byte
35 / 50
Tail of keyboard should get to get the start of buffer.
36 / 50
Int ________ is used to control the printer via the BIOS.
37 / 50
DCE stands for __________.
38 / 50
_____ bit is cleared to indicate the low nibble is being sent.
39 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
40 / 50
41 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
42 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
43 / 50
BPB stands for _________.
44 / 50
The ______ service # is not used in any interrupt.
45 / 50
Only ________ ports are important from programming point of view.
46 / 50
Standard PC can have _____ PPI.
47 / 50
DTE is ____________.
48 / 50
To store each character in keyboard buffer ____ bytes are required.
49 / 50
If we use keep (0, 1000) in a TSR program, the memory allocated to it is
50 / 50
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