Question : 1 of 10 ( Marks: 1 ) - Please choose one 14h include __________ which is used to send a byte. ►Service #0 ►Service #1 (Page 121) ►Service #2 ►Service #3 Question : 2 of 10 ( Marks: 1 ) - Please choose one The status register _____ is the main control register. ►B (Page 146) ►A ►C ►D Question : 3 of 10 ( Marks: 1 ) - Please choose one _________ is used to identify the cause of interrupt. ►Interrupt ID Register (Page 116) ►PC Register ►AC Register ►None of All These 25 Question : 4 of 10 ( Marks: 1 ) - Please choose one In NTFS, up to ________ characters are used to store files names, ►30 ►48 ►255 (Page 283) ►510 Question : 5 of 10 ( Marks: 1 ) - Please choose one A cluster is a collection of contiguous _______. ►Blocks (Page 242) ►Sectors ►Bytes ►None of Given Question : 6 of 10 ( Marks: 1 ) - Please choose one In BPB, root directory is saved in _________. ►Cluster#0 ►Cluster#1 ►Cluster#2 ►Cluster#3 Question : 7 of 10 ( Marks: 1 ) - Please choose one In NTFS, total sizes of MFT entries are _______. ►16-bytes (Page 303) ►20-bytes ►26-bytes ►32-bytes Question : 8 of 10 ( Marks: 1 ) - Please choose one In NTFS, _______ store the contents of file. ►Both small & large file Record ►Small record ►Large Record ►None of given 26 Question : 9 of 10 ( Marks: 1 ) - Please choose one In NTFS, contents and indexed of file is stored in _____. ►Small record ►Large Record ►Both small & large file Record ►None of given Question : 10 of 10 ( Marks: 1 ) - Please choose one Total No. of bytes that can be stored in Keyboard Buffer is. ►16 ►32 (Page 54) ►64 ►128 Question : 1 of 10 ( Marks: 1 ) - Please choose one BIOS support _____________UARTS as COM ports. ►6 ►4 (Page 113) ►3 ►2 Question : 2 of 10 ( Marks: 1 ) - Please choose one DCE stands for __________. ►Data communication equipment (Page 109) ►Distributed Computing Environment ►Data Communications Equipment ►Data Carrier Equipment Question : 3 of 10 ( Marks: 1 ) - Please choose one In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles ►1 ►2 ►4 ► 16 (Page 69) 27 Question : 4 of 10 ( Marks: 1 ) - Please choose one In ____________each byte is needed to be encapsulated in start and end. ►Synchronous communication ►Asynchronous communication (Page 106) ►Both ►None of given Question : 5 of 10 ( Marks: 1 ) - Please choose one The ______ service # is not used in any interrupt. ►01 ►02 ►03 ►FF Question : 6 of 10 ( Marks: 1 ) - Please choose one If we want to send printing on the printer then we have to perform following steps. ►Initialize printer ►Read Status ►Check Error ►All of the given Question : 7 of 10 ( Marks: 1 ) - Please choose one DTE is ____________. ►Data terminal equipment (Page 109) ►Data transmitting equipment ►Dual terminal equipment ►None of the given. Question : 8 of 10 ( Marks: 1 ) - Please choose one If printer is _____ then printer sends back the ACK signal to the printer interface ►idle (Page 97) ►busy ►Out of paper ►None of the given 28 Question : 9 of 10 ( Marks: 1 ) - Please choose one DSR stands for __________ . ►Data set ready (Page 111) ►Data service ready ►Data stock ready ►None of the given Question : 10 of 10 ( Marks: 1 ) - Please choose one At IRQ 7 Interrupt # ___ is used. ► 0x0A ►0x0B ► 0x0C ►0x0F (Page 95) Question : 1 of 10 ( Marks: 1 ) - Please choose one The memory addresses of COM ports remain same for all computers ►True ►False Question : 2 of 10 ( Marks: 1 ) - Please choose one In keyboard status byte bit no. 2 and 3 are used for ctrl and alt keys respectively. which of the following condition is used to check that Ctrl + Alt keys are pressed. Where: unsigned char far * scr = (unsigned char far *)(0x00400017); ►if (((*scr)&12)==12) ►if (((*scr)&8)==8) ►if (((*scr)&4)==4) ►if (((*scr)&2)==2) Question : 3 of 10 ( Marks: 1 ) - Please choose one In case of synchronous communication a timing signal is required to identify the start and end of a bit. ►True (Page 105) ►False Question : 4 of 10 ( Marks: 1 ) - Please choose one The baud rate is set in accordance with the divisor value loaded within the UART internal registers base +0 and base +1. ►TRUE (Page 114) ►FALSE 29 Question : 5 of 10 ( Marks: 1 ) - Please choose one Software based flow control make use of -------- control characters ►Xon ►XOFF ►Both (Page 135) ►None Question : 6 of 10 ( Marks: 1 ) - Please choose one ------------ is used to read time from RTC ►1A\02H (Page 137) ►1A\03H ►1A\04H ►1A\05H Question : 7 of 10 ( Marks: 1 ) - Please choose one Int_____________ service 0 can be used to set the line parameter of the UART or COM port. ►14H (Page 119) ►15H ►13H ►None of the given option Question : 8 of 10 ( Marks: 1 ) - Please choose one When LBA is equal to zero (0), it means ________. ►First block of the disk (Page 240) ►First block of the logical drive ►First block of the hidden block ►None of the given Question : 9 of 10 ( Marks: 1 ) - Please choose one In IRQ2 and IRQ3 which one has the highest priority? ►Can’t be determined ►Both have same priority ►IRQ3 ►IRQ2 (Page 47) 30 Question : 10 of 10 ( Marks: 1 ) - Please choose one Following is not a method of I/O ►Programmed I/O ► Interrupt driven I/O ►Hardware Based I/O (Page 4) ►None of given Question : 1 of 10 ( Marks: 1 ) - Please choose one It is possible to perform I/O operations from three different methods. ►True (Page 7) ►False Question : 2 of 10 ( Marks: 1 ) - Please choose one The Function of I/O controller is to provide ____________. ►I/O control signals ►Buffering ►Error Correction and Detection ►All of given (Page 5) Question : 3 of 10 ( Marks: 1 ) - Please choose one Which of the following are types of ISR __________. ►BIOS (Basic I/O service ) ISR ►DOS ISR ►ISR provided by third party device drivers ►All of the given (Page 13) Question : 4 of 10 ( Marks: 1 ) - Please choose one Interrupt service number is usually placed in ____________ register. ►CH ►CL ►AH (Page 26) ►AL 31 Question : 5 of 10 ( Marks: 1 ) - Please choose one NMI Stand for ►Non Maskable Interrupt (Page 46) ►Non Multitude Interrupt ►Non Maskable Instruction ►None of Given Question : 6 of 10 ( Marks: 1 ) - Please choose one A single interrupt controller can arbitrate among ____ different devices. ►4 ► 6 ►8 (Page 47) ►10 Question : 7 of 10 ( Marks: 1 ) - Please choose one The microprocessor package has many signals for data. Below are some incorrect priority order (Higher to Lower). ►Reset,Hold,NMI,INTR (Page 46) ►NMI, INTR,Hold,Reset ►INTR,NMI,Reset,Hold ►None of the Given Question : 8 of 10 ( Marks: 1 ) - Please choose one The following command “outportb (0x61,inportb(0x61) & 0xFC);” will ►Turn on the speaker ►Turn off the speaker (Page 75) ►Toggle the speaker ►None of the given Question : 9 of 10 ( Marks: 1 ) - Please choose one The following command “outportb (0x61,inportb(0x61) | 3);” will ________ . ►Turn on the speaker (Page 74) ►Turn off the speaker ►Toggle the speaker ►None of the above 32 Question : 10 of 10 ( Marks: 1 ) - Please choose one The PPI acts as an interface between the CPU and a parallel ________ . ►I/O device (Page 83) ►CPU ►BUS ►None of Given Question : 1 of 10 ( Marks: 1 ) - Please choose one BIOS DO NOT support ______. ►LPT1 ►LPT2 ►LPT3 ►LPT4 (Page 91) Question : 2 of 10 ( Marks: 1 ) - Please choose one _____ bit is cleared to indicate the low nibble is being sent. ►D1 ►D2 ►D3 ►D4 (Page 104) Question : 3 of 10 ( Marks: 1 ) - Please choose one The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register. ►1 ►3 ►5 ►7 (Page 114) Question : 4 of 10 ( Marks: 1 ) - Please choose one ___________ file system is used in NTFS based systems. Contiguous Chained Indexed None of the given 33 Question : 5 of 10 ( Marks: 1 ) - Please choose one Communication between keyboard and keyboard controller is __________. ►Asynchronous serial ►Synchronous serial (P 77) ►Parallel communication ►None of the given Question : 6 of 10 ( Marks: 1 ) - Please choose one In NTFS, boot sector is stored at ►First and 6th sector ►First and Last sector ►Only at Last sector ►Only at First sector Question : 7 of 10 ( Marks: 1 ) - Please choose one Standard PC operates in two modes in terms of memory which are ►Real mode and Extended Mode ►Base mode and Memory Mode ►None of the given ►Real mode and protected mode (Page 6) Question : 8 of 10 ( Marks: 1 ) - Please choose one IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine. ►2 ►4 (Page 20) ►8 ►16 Question : 9 of 10 ( Marks: 1 ) - Please choose one Each paragraph in keep function is ____ bytes in size. ►4 ►8 ►16 (Page 24) ►32 34 Question : 10 of 10 ( Marks: 1 ) - Please choose one A software interrupt does not require EOI (End of interrupt). ►True (Page 49) ►False Question : 1 of 10 ( Marks: 1 ) - Please choose one To store each character in keyboard buffer ____ bytes are required. ►2 (Page 54) ►4 ►6 ►8 Question : 2 of 10 ( Marks: 1 ) - Please choose one Interrupt _____ is empty; we can use its vector as a flag. ►9H ►13H ►15H ►65H (Page 65) Question : 3 of 10 ( Marks: 1 ) - Please choose one Command register is an _____ bit register ►4 ►8 (Page 71) ►16 ►32 Question : 4 of 10 ( Marks: 1 ) - Please choose one How many bytes can be used to store a file name in NTFS? ►128 ►255 ►510 ►1024 Question : 5 of 10 ( Marks: 1 ) - Please choose one ____ is the first logical sector of NTFS partition. ►DPB ►MFT ►Boot sector ►None 35 Question : 6 of 10 ( Marks: 1 ) - Please choose one In boot block BIOS parameter block starts from 03H ►05H ►08H ►0BH (Page 302) Question : 7 of 10 ( Marks: 1 ) - Please choose one IN NTFS, FAT and root directory is replaced by ►FCB ►MFT (Page 301) ►Hidden blocks ►Boot sector Question : 8 of 10 ( Marks: 1 ) - Please choose one Block # 2 is the safest block to store the backup of boot block. ►True ►False Question : 2 of 10 ( Marks: 1 ) - Please choose one The keyboards interface as discussed earlier uses the IRQ0 and the port 64H as data port. ►True ► False Question : 3 of 10 ( Marks: 1 ) - Please choose one FAT12 will have 12-bit wide entries and can have 2^12=4096 entries maximum ►True ► False Question : 4 of 10 ( Marks: 1 ) - Please choose one In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port. ►8, 0x21 ►16, 0x42 ►32, 0x22 ►64, 0x32 36 Some More MCQs and Quizzes Question : 1 of 10 ( Marks: 1 ) - Please choose one DMA stands for_________ ►Direct Memory Access (Page 4) ►Distinct Memory Access ►Direct Module Access ►Direct Memory Allocation Question : 2 of 10 ( Marks: 1 ) - Please choose one UART stands for_______ ►Universal Asynchronous Receiver Transmitter (Page 107) ►Universal Adjustment and Realigning Tool ►Unconventional Assisted Recovery Team ►None of these Question : 3 of 10 ( Marks: 1 ) - Please choose one Interrupt Vector Table (IVT) in short is a _______ bytes sized table. ►1024 (Page 10) ►2048 ►3072 ►4096 Question : 4 of 10 ( Marks: 1 ) - Please choose one Hardware Interrupts are __________. ►Preemptive ►Non-Preemptive (Page 48) ►Both Preemptive and Non-Preemptive ►None of Given Question : 5 of 10 ( Marks: 1 ) - Please choose one Timer interrupt is a ___. ►Hardware Interrupt (Page 28) ►Software Interrupt ►Both of these ►None of These 37 Question : 6 of 10 ( Marks: 1 ) - Please choose one The keyboard makes use of interrupt number _______ for its input operations. ►9 (Page 34) ►10 ►11 ►12 Question : 7 of 10 ( Marks: 1 ) - Please choose one Register can be used to divide frequency is _________ ►Counter Register (Page 69) ►Accumulator Register ►None of these Question : 8 of 10 ( Marks: 1 ) - Please choose one Which port is known as Data Port ►60H (Page 177) ►61H ►64H ►69H Question : 9 of 10 ( Marks: 1 ) - Please choose one LPTs can be swapped. ►True (Page 92) ►False Question : 10 of 10 ( Marks: 1 ) - Please choose one PPI is used to perform parallel communication ►True (Page 81) ►False Question : 1 of 10 ( Marks: 1 ) - Please choose one __________is used to control the printer via the BIOS ►Int 16H ►Int 17H (Page 84) ►Int 18H ►Int 19H 38 Question : 2 of 10 ( Marks: 1 ) - Please choose one There are two main types of interrupts namely _________________. ►PC based and Window based ►Hardware based and Kernal based ►Hardware interrupts and Software interrupts (Page 10) ►None of the given Question : 3 of 10 ( Marks: 1 ) - Please choose one To set the interrupt vector means is to change the double word sized interrupt vector within the IVT. ►True (Page 22) ►False Question : 4 of 10 ( Marks: 1 ) - Please choose one The service number is usually placed in the ________ register. ►AL ►CL ►AH (Page 26) ►AX Question : 5 of 10 ( Marks: 1 ) - Please choose one The keyboard makes use of interrupt number _______ for its input operations. ► 9 (Page 34) ►10 ►11 ►12 Question : 6 of 10 ( Marks: 1 ) - Please choose one The service _________ is called the keyboard hook service. ►15H/2FH ►15H/4FH (Page 44) ►15H/FFH Question : 7 of 10 ( Marks: 1 ) - Please choose one The BIOS interrupt ________ can be used to configure RTC. ►1AH (Page 136) ►2AH ►3AH ►4AH 39 Question : 8 of 10 ( Marks: 1 ) - Please choose one PPI stands for ►Parallel Programmable interface ►Peripheral Programmable interface (Page 76) ►Port Programmable interface ►None of the given Question : 9 of 10 ( Marks: 1 ) - Please choose one Int ________ is used to control the printer via the BIOS. ►17H (Page 84) ►18H ►20H ►21H Question : 10 of 10 ( Marks: 1 ) - Please choose one Counter register can be used to divide clock signal. ►True (Page 69) ►False Question : 1 of 10 ( Marks: 1 ) - Please choose one The bit number _______ of the coprocessor control word is the interrupt enable flag. ►7 (Page 168) ►8 ►9 ►6 Question : 2 of 10 ( Marks: 1 ) - Please choose one There are __________ kinds of serial communication. ►2 (Page 105) ►3 ►4 ►5 Question : 3 of 10 ( Marks: 1 ) - Please choose one ________ store the base address for LPT1. ►40:00H ►40:02H ►40:08H (Page 92) ►40:1AH 40 Question : 4 of 10 ( Marks: 1 ) - Please choose one The amount of memory above conventional memory (extended memory) can be determined using the service _______. ►15H/88H (Page 162) ►16H/88H ►17H/88H ►21H/88H Question : 5 of 10 ( Marks: 1 ) - Please choose one The output on the monitor is controlled by a controller called __________within the PC. ►Video controller (Page 30) ►Bus controller ►Ram controller ►None of the given Question : 6 of 10 ( Marks: 1 ) - Please choose one Interrupt 9 usually reads the _________ from keyboard. ►ASCII code ►Scan code (Page 34) ►Both ASCII and Scan code ►None of the above Question : 7 of 10 ( Marks: 1 ) - Please choose one NMI Stand for ►Non Maskable Interrupt (Page 46) ►Non Multitude Interrupt ►Non Maskable Instruction ►None of Given Question : 8 of 10 ( Marks: 1 ) - Please choose one A single interrupt controller can arbitrate among ____ different devices. ►4 ►6 ►8 (Page 47) ►10 41 Question : 9 of 10 ( Marks: 1 ) - Please choose one The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower). ►Reset,Hold,NMI,INTR (Page 46) ►NMI, INTR,Hold,Reset ►INTR,NMI,Reset,Hold ►None of the Given Question : 10 of 10 ( Marks: 1 ) - Please choose one The ________function initialize the COM port whose number is passed as parameter using BIOS services. ►Initializecom() ►Initialize() (Page 125) ►Recievechar() ►None of these option Question : 1 of 10 ( Marks: 1 ) - Please choose one There are two type of communication synchronous and Anti Synchronous ►True ►False (Page 105) Question : 2 of 10 ( Marks: 1 ) - Please choose one REGS is a Union ►True ►False Question : 3 of 10 ( Marks: 1 ) - Please choose one Keyboard Status Byte is located at the address ► 0040:0000H ► 0040:0013H ► 0040:0015H ► 0040:0017H (Page 29) Question : 4 of 10 ( Marks: 1 ) - Please choose one If we use keep (0, 1000) in a TSR program, the memory allocated to it is ► 64000 bytes ► 32000 bytes ► 16000 bytes ► 80000 bytes 42 Question : 5 of 10 ( Marks: 1 ) - Please choose one Maximum number of interrupts in a standard PC is ► 64 ► 128 ► 256 (Page 10) ► 512 Question : 6 of 10 ( Marks: 1 ) - Please choose one The -------- function receive a byte and COM port number is passed as parameter using BIOS service ►Receivebyte (); ►Receive (); ►Receivechar (); (Page 125) ►None of the given option Question : 7 of 10 ( Marks: 1 ) - Please choose one ------------ whenever receive indicates the start of communication ………… whenever receive indicates the end of communication ►XON\XOFF (Page 135) ►XOFF\XON ►XON\YOFF ►YON\XOFF Question : 8 of 10 ( Marks: 1 ) - Please choose one ------------ is used to set time from RTC ►1A\02H ►1A\03H (Page 138) ►1A\04H ►1A\05H Question : 9 of 10 ( Marks: 1 ) - Please choose one Set the Interrupt vector means to change the double word sized interrupt vector within IVT. ►True (Page 22) ►False Question : 10 of 10 ( Marks: 1 ) - Please choose one If keyboard buffer is empty the head and tail points at the same location. ►True (Page 55) ►False 43 Question : 1 of 10 ( Marks: 1 ) - Please choose one Standard PC can have _____ PPI. ►1 ►4 (Page 84) ►8 ►16 Question : 2 of 10 ( Marks: 1 ) - Please choose one By cascading two DMAs ____ bits can be transferred. ►4 ►8 ►16 (Page 186) ►32 Question : 3 of 10 ( Marks: 1 ) - Please choose one PPI interconnection _______ bits is cleared to indicate low nibble is being sent. ►D1 ►D2 ► D3 ► D4 (Page 101) Question : 4 of 10 ( Marks: 1 ) - Please choose one Display device (Monitor) performs _________ I/O. ►memory mapped (Page 30) ►Isolated ►Both of above ►None of these Question : 5 of 10 ( Marks: 1 ) - Please choose one Timer interrupt occurs _______ times every second by means of hardware. ►18.2 (Page 28) ►16.2 ►15.2 ►14.2 Question : 6 of 10 ( Marks: 1 ) - Please choose one An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O. ►True (Page 83) ►False 44 Question : 7 of 10 ( Marks: 1 ) - Please choose one Tail of keyboard should get to get the start of buffer. ►True (Page 55) ►False Question : 8 of 10 ( Marks: 1 ) - Please choose one ____ No. of bytes are used to store the character in the keyboard buffer. ► 1 ►2 (Page 54) ►4 ► 8 Question : 9 of 10 ( Marks: 1 ) - Please choose one We have set the bit No. 7 of IMR(Interrupt Mask Register) to unmask the Interrupt so that interrupt _____ can occur at ____ line. ►0xf ,IRQ 7 ► 0xa, IRQ 6 ► 0x8, IRQ 5 ►0x6, IRQ 2 Question : 10 of 10 ( Marks: 1 ) - Please choose one If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____. ►high, 0x42 ►low, 0x22 ►high, 0x22 ►low, 0x42