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CS609 MCQs from Quiz (Shared by M.Umair unsolved)


Int 14H __________ can be used to send a byte.
Select correct option:
Service # 0
Service # 1
Service # 2
None of the given options

Int 14H __________ can be used to set the line parameter of the UART or COM port.
Select correct option:
Service # 0
Service # 1
Service # 2
None of the given options

Int 14H __________ can be used to receive a byte.
Select correct option:
Service # 0
Service # 1
Service # 2
None of the given options

The ________ function simply enables the self test facility within the modem control register.
Select correct option:
STOn()
SelfTest()
SelfTestOn()
None of these

Int _______ service 0 can be used to set the line parameter of the UART or COM port.
Select correct option:
14H
15H
13H

None of the given options
_________ is a device incorporated into the PC to update time even if the computer is off.
Select correct option:
Clock Counter
ROM
clock
Real time clock
Interrupt ______ is used to get or set the time.
Select correct option:
0AH
1AH
2AH
3AH

______ is used to set time.
Select correct option:
1A/02H
1A/03H
1A/04H
1A/05H
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______ is used to read date from RTC.
Select correct option:
1A/02H
1A/03H
1A/04H
1A/05H

____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
Select correct option:
XON & XOFF
XOFF & XON
XON & YOFF
YON & XOFF

The _________ function uses the COM port number to receive a byte from the COM port using BIOS services.
Select correct option:
initialize()
recievebyte()
recieve()
recievechar()

Int 14H __________ can be used to set the line parameter of the UART or COM port.
Select correct option:
Service # 0
Service # 1
Service # 2
None of the given options

Int 14H __________ can be used to send a byte.
Select correct option:
Service # 0
Service # 1
Service # 2
None of the given options
_________ is a device incorporated into the PC to update time even if the computer is off.
Select correct option:
Clock Counter
ROM
clock
Real time clock
The _______ function initializes the COM port whose number is passed as parameter using BIOS services.
Select correct option:
initializecom()
initialize()
recievechar()
none of these options
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____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
Select correct option:
XON & XOFF
XOFF & XON
XON & YOFF
YON & XOFF

In self test mode the output of the UART is routed to its input.
Select correct option:
TRUE
FALSE

Only ________ ports are important from programming point of view.
Select correct option:
70 and 71H
71 and 72H
70 and 72H
72 and 73H
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Int _______ service 0 can be used to set the line parameter of the UART or COM port.
Select correct option:
14H
15H
13H
None of the given options
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The BIOS interrupt 0x1Ah can be used to configure real time clock
Select correct option:
TRUE
FALSE

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