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QUESTION BANK, XII COMPUTER SCIENCE (D9) – PAPER II, , Chapter 1: Introduction to microprocessor and Organization of 8085, Question Question, no., , Marking, scheme, MCQ 1 Mark, , 1., , 2., , 3., , 4., , 5., , 6., , 7., , The register which stores the result of arithmetic and logic operations is Correct, called as …………, Answer, i. Program counter, 1 mark, ii. Accumulator, iii. Stack pointer, iv., D. Temporary register, Program counter in 8085 Microprocessor ………., Correct, i. Counts number of programs, Answer, ii. Counts number of times a subroutine is called, 1 mark, iii. Counts the number of times loop are executed, iv., Points to the address of the next instruction to be executed, In Intel 8085 Microprocessor, ALE signal made high to……., Correct, i. Enable AD0-AD7 bus to be used as lower order, Answer, a. address bus, 1 mark, ii. Enable AD0-AD7 bus to be used as data bus (D0-D7), iii. To halt the processor, iv., D. To reset the microprocessor, ………. is a non Vectored interrupt in 8085., Correct, i. RST 7.5, Answer, ii. RST 6.5, 1 mark, iii. INTR, iv., TRAP, ………….. is a lowest priority interrupt, Correct, i. RST 5.5, Answer, ii. RST 6.5, 1 mark, iii. TRAP, iv., INTR, .......... is the only non- maskable interrupt, Correct, i. TRAP, Answer, ii. RST 5.5, 1 mark, iii. RST 7.5, iv., RST 6.5, ………….. is not valid register pair in 8085 microprocessor, Correct, i. B C pair, Answer, ii. H L pair, 1 mark, iii. Accumulator and flag register, iv., D E pair

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8, , Which of the following statement for INTEL 8085 is correct?, Correct, i. Program counter specifies the address of the last instruction Answer, executed, 1 mark, ii. Program counter specifies the number of instructions executed so far, iii., Program counter specifies the address of the next instruction to, be executed, iv., Program counter specifies the address of instruction being executed, , 9., , Which of the following data transfer is not possible in 8085 Correct, microprocessor?, Answer, i. Memory to Accumulator, 1 mark, ii. Accumulator to memory, iii. Accumulator to I/O device, iv., Memory to memory, , 10., , If the status of S0 and S1 pin is low, the microprocessor performs the Correct, ………………., Answer, i. Reset operation, 1 mark, ii. Halt operation, iii. Hold operation, iv., Interrupt acknowledge, , 11, , In 8085 microprocessor, the stack works on the principle of……, i. First in first out( FIFO), ii. Last in last out( LILO), iii. Last in first out( LIFO), iv. None, , Correct, Answer, 1 mark, , 12, , 8085 requires …….Power supply, i. +5 V, ii. +15 V, iii. -5 V, iv., +10V, , Correct, Answer, 1 mark, , 13., , The 8085 microprocessor can address …….. bytes of memory, i. 1k, ii. 4k, iii. 128 k, iv., 64K, , Correct, Answer, 1 mark, , 14, , In an Intel 8085 microprocessor, why is READY signal is used?, i. To indicate that microprocessor is working and is ready for use, ii. To provide proper WAIT states when the microprocessor is, communicating with a slow peripheral device., iii. To slow down a fast peripheral device so as to communicate at the, microprocessor’s device., iv., None of the above., ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists, of……….., i. Accumulator, temporary register, arithmetic and logic circuits, , Correct, Answer, 1 mark, , 15, , Correct, Answer, 1 mark

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16, , 17, , 18, , 19, , 20, , 21, , 22, , 23, , 24, , 25, , ii. Accumulator, arithmetic, logic circuits and five flags, iii. Accumulator, arithmetic and logic circuits, iv. Accumulator, temporary register, arithmetic, logic circuits and, five flags, INTEL 8085 microprocessor was introduced in ……, i. 1978, ii. 1976, iii. 1996, iv., 2003, The clock speed of 8085 microprocessor is …………, i. 2MHz, ii. 10MHz, iii. 3 MHz, iv., 100Mhz, There are …………..general purpose registers in 8085 processor, i. 3, ii. 7, iii. 10, iv., 6, ……..signal is used as the system clock for devices connected with the, microprocessor., i. X1,X2, ii., CLK OUT, iii. RESET OUT, iv., ALE, In a flag register of 8085…………….. number of bits are unused, i. 8, ii. 5, iii. 3, iv., 6, The vector address of TRAP interrupt is ……….., i. 002CH, ii. 003CH, iii. 0034H, iv., 0024H, CPU generally contains storage device called………, i. ALU, ii. Timing control unit, iii. Counter, iv., Register, ……….. register of 8085 is only used during arithmetic and logical, operations and not for any other purpose, i., Temporary, ii. Acc, iii. SP, iv., B, …….. flag bit is reset, when flag register content is D4H., i. Sign, ii. Zero, iii. Carry, iv., Auxiliary Carry, In 8085 microprocessor, serial data from external device is received, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct

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26, , 27, , 28, , 29, , 30, , 31, , 32, , on……….pin, i. SID, ii. SOD, iii. HOLD, iv., READY, ………… is a software interrupt, i. TRAP, ii. RST 1, iii. RST 7.5, iv., INTR, ……….. is a highest priority interrupt, i. RST 5.5, ii. RST 6.5, iii. RST 7.5, iv., TRAP, ……….. is a lowest priority interrupt, i. RST 6.5, ii. TRAP, iii. INTR, iv., RST 5.5, , Answer, 1 mark, , The invalid register pair for 8085 microprocessor is……., i. BC, ii. HL, iii. PC, iv., DE, The valid register pair for 8085 microprocessor is……., i. PC, ii. SP, iii. BE, iv., BC, ………. Pin of 8085 microprocessor is used to send data serially out, i., HOLD, ii., SID, iii., SOD, iv., CLKOUT, There are …….. flags in 8085, i. 10, ii. 5, iii. 8, iv., 3, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , Correct, Answer, 1 mark, , 3 Marks question, 1, , List any three primary functions of CPU of Microcomputer, , 2, , Write any six features of 8085 Microprocessor, , 3, , Draw functional pin diagram of 8085 microprocessor, , 4, , Write the purpose of following pins of 8085 microprocessor, , 1 mark, For, each, function, 1X3=3, Any, six, featutes, ½ X6=3, Diag. 2, Lables 1, Function, of

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a) READY b) INTR c) X1 , X2, , 5, , 6, , 7, , 8, , 9, , 10, , 11, , 12, , 13, , 14, , 15, 16, , 17, , 18, , 19, , each pin, 1X3=3, Differentiate between I/O mapped I/O and memory mapped I/O., Any, three, points, 1X3=3, What is an interrupt? Explain in detail., Defination. 1Mark, Expla nation2mark, Explain organization of ALU with the help of simple block diagram, Diag -1Mark, Explanation 2Mark, Write the function of following registers in 8085, Fun of each, a) Accumulator b) Instruction Register c) Stack pointer, register- 1Mark, 1X3=3, Write the function of following pins of 8085 microprocessor, Function, of, a) CLKOUT b) SID c) ALE, each pin -1, Mark, 1X3=3, Draw and explain programming model of 8085 Microprocessor., Diagram, –, 1mark, Explanation2mark, List all the hardware interrupts according to their priority provided by 8085. List -1mark, Also write their vector addresses., Priority -1mark, Vector addr1mark, Differentiate between hardware and software interrupt., Any, three, points – 1mark, each, 1 X3=3, Define the following terms with suitable diagram, Each, a) Instruction cycle b)Machine cycle c) T state, defination, 1Mark,, 1X3=3, Write short note on subroutine in 8085 microprocessor, Diagram, 1mark, Explanation 2mark, Explain multiplex address/ data ( AD0-AD7) bus in 8085 Microprocessor, Explanation –, 3 mark, Differentiate between maskable and non-maskable interrupts, Any, three, points-1mark, each, 1X3=3, Draw labeled block diagram of Generic Microprocessor., Diagram, 2mark, Labels -1mark, Describe the functions of following pins of 8085 microprocessor, Fun of each pin, a) RESETOUT b) HLDA c) S0, S1, -1 mark, 1X3=3, Explain the function of ALU with simple block diagram, Diagram, -

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1mark, Explanation –, -2 mark, 20, , 21, , 22, , 23, 24, , 25, , What are flags in 8085? Enlist the different flags provided by 8085 Define Flags –, microprocessor.Also draw flag register diagram, 1mark, List – 1mark, Diagram –, -1 mark, Explain the function of following units in microprocessor 8085., Fun of each pin, a) ALU b) Program Counter c) Instruction decoder, - 1 mark each, 1X3=3, Write a short note on flag register of 8085 microprocessor, Flag register, diagram –, 1 mark, Explanation, -2mark, Explain the zero and parity flags of 8085 with suitable diagram, Zero flag -1½, Parity flag 1 ½, What is Microprocessor? List its functions., Microprocessor, -1Mark, , list any 4, functions, -2Mark, What is multiplexed address and data bus in 8085? give its advantages., Explanation of, AD0-AD7, 2Mark, Advantages1mark, , 26, , What is stack in 8085? List the instructions required for stack operations., , 27, , Explain the following flags of 8085 microprocessor, a) Carry b) Sign c) Zero, In case of Microprocessor architecture, explain the following terms in brief., a) Address Bus, b) Data Bus, c) Control Bus, , 28, , 29, , What is a Subroutine in 8085? Give its related instructions in 8085, , 30, , Explain ALU of Generic Microprocessor., , Stack concept2Mark, Instructions-1 Mark, Each flag- 1, Mark, Expla of each, bus – 1 mark, 1X3=3, , Subroutine, 2mark, Instructions 1mark, Expl of ALU –, 2 mark, Diagram, -1mark, , 4 Marks Question, 1, , Write a short note on evolutions of microprocessor giving example of each Evolutions – 4, generation, marks

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2, , Write any four functions of CPU of Microcomputer system, , 3, , Draw a block diagram of Microcomputer system? Explain function of each, block in brief., , 4, , Draw a neat labeled block diagram of Generic microprocessor. Explain its, functional units., , 5, , The flag register of 8085 microprocessor contains data 45H. interpret its, meaning, , 6, , Write a short note on flag register of 8085 microprocessor .Explain the, significance flag bits with one example, What are flags? Enlist the flags provided by 8085 Microprocessor .Explain, when they are set or reset., , 7, , 8, , Draw a labeled functional block diagram of microprocessor 8085., , 9, , Explain the function of following units in microprocessor 8085, a) Serial I/O control unit, c) Stack Pointer, b) Program counter, d) Temporary register, , 10, , Draw the bit pattern of flag register and explain the significance of each flag, bit with one example, , 11, , What hardware interrupts? Explain vectored and non vectored interrupts of, 8085 microprocessor., , 12, , What is a interrupts? Differentiate between hardware and software, interrupts., , Each function, – 1mark, 1X4=4, Explanation --2Mark, Diagram, –, 2mark, Diagram-2 mark, Explanation, - 2 mark, Flag, reg., diagram, - 1 mark, Interpretation3 marks, Explanation of, flags -4 marks, Flags, –, 1, marks, set reset, condition3 mark, 8085 diagram4 marks, Function, of, each unit – 1, mark, 1X 4=4, Bit pattern – 1, mark, Significance –, 3 marks, Hardware, interrupts, -1mark, Vectored and, non vectored, - 3mark, 1+3=4, Defination, interrupt- --1mark, Difference, hardware and, software, interrupts any 3, points, --3 marks, 1+3=4

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13, , Differentiate between maskable and Non-maskable interrupts, , 1, , What are vectored interrupt? What are maskable and Non maskable Vectored, interrupts? State all hardware interrupts of 8085 microprocessor with their interrupt-1, priorities and vector addresses, mark, Maskable and, non maskable, - 1mark, Priority, and, vector address2mark, What are I/O mapped I/O and Memory mapped I/O schemes?, I/o mapped I/o, Which one 8085 uses., and Memory, mapped I/O3 mark, Used in 80851 mark, The flag register of 8085 microprocessor contains data 3CH. interpret its Flag register., meaning, diag- 1 mark, Interpretation3 marks, , 15, , 16., , Any, points, marks, , four, – 4

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CHAPTER 2 – INSTRUCTION SET AND PROGRAMMING OF 8085, MCQ (1 Mark Questions ), Q. No, , Question, , Marking Scheme, , 1., , The _______ flag bit is reset, when flag register content is, 95 H., i., P, ii., Z, iii., Ac, iv., CY, , 1Mark, , 2., , _________ instruction belongs to data transfer group., i., LHLD address, ii., CMA, iii., JMP address, iv., ANI data, , 1Mark, , 3., , The instruction __________ will affect the zero flag without 1Mark, changing the contents of the accumulator., i., MVI A,00, ii., SUB A, iii., XRA A, iv., CMP A, , 4., , _______ instruction rotates contents of accumulator right, through carry by 1 bit., i., RAC, ii., RAL, iii., RAR, iv., RRC, , 1Mark, , 5., , Instruction XCHG belongs to _______ addressing mode., i., Register, ii., Register indirect, iii., Direct, iv., Immediate, , 1Mark, , 6., , Addressing mode of ADD M is ______., i., Direct, ii., Register Indirect, iii., Implied, iv., Immediate, , 1Mark, , 7., , _______ instruction is three byte instruction of 8085., i., CMA, ii., ADI, iii., XCHG, iv., LDA, , 1Mark

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8., , _______ instruction is used for 16 bit addition., i., ADD, ii., ADI, iii., ADC, iv., DAD, , 1Mark, , 9., , The instruction MVI r, Data 8 is _______ byte instruction., i., Two, ii., One, iii., Three, iv., Four, , 1Mark, , 10., , During PUSH instruction of 8085 the stack pointer is, _______., i., Incremented by 2, ii., Decremented by 2, iii., Incremented by 1, iv., Decremented by 1, , 1Mark, , 11., , The contents of HL pair are CFFF H. After execution of, instruction INX H, the contents will be _______., i., DFFF, ii., CF00, iii., CFF0, iv., D000, , 1Mark, , 12., , When ________ instruction is executed, no operation is, performed; only this instruction is fetched and decoded., i., HLT, ii., RST 1, iii., NOP, iv., RIM, , 1Mark, , 13., , _______ flag is affected by instruction RRC of 8085., i., Carry, ii., Zero, iii., Parity, iv., all, , 1Mark, , 14., , The contents of HL pair are 2A00 H. After execution of, instruction DCX H, the contents will be _______., i., 2900, ii., 29FF, iii., 1A00, iv., 1AFF, , 1Mark, , 15., , Invalid register pair for 8085 microprocessor is _______., i., SP, ii., BC, iii., HL, iv., DE, , 1Mark

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3 Mark Questions, Q. No, 2., , Question, The accumulator of 8085 microprocessor contains data F2H., What will be contents of accumulator after execution of each, of the following instruction independently?, a) XRI 3BH, b) RLC, c) SUI AEH, , Marking Scheme, 1 Mark for each subpoint, a) C9H, b) E5H, c) 44H, , 3., , The accumulator of 8085 microprocessor contains data 3CH., What will be the effect on its content if following, instructions are executed independently?, a) ANI 05H, b) RRC, c) MOV B, A, , 1 Mark for each subpoint, a) 04H, b) 1EH, c) 3CH, , 4., , Explain the register and direct addressing modes of 8085, microprocessor with example of each., , 5., , Explain the following instructions with suitable example, a)DAA b) LDAX rp c) SHLD address, , 6., , Explain the following instructions with suitable example., a)RAR b) ADC r c) CPI data, , 7., , Explain the following instructions of 8085 microprocessor, with suitable example, a)SPHL b) CMA c) PUSH PSW, , 1 mark explanation and ½, mark example for each, mode, Correct explanation with, example 1 mark for each, instruction, Correct explanation with, example 1 mark for each, instruction, Correct explanation with, example 1 mark for each, instruction, , 8., , Write appropriate instructions for each of the following, tasks:, a) Store the contents of accumulator to memory location, pointed by BC pair.b ) Decrement contents of HL pair by 1. –, c) Set carry flag to 1. -, , 1 Mark for each subpoint, a) STAX B, b) DCX H, c) STC, , 4 Mark Questions, Q. No, , Question, , 1., , Explain the following instructions with suitable example., 1. DAA, 2. XTHL, , 2., , Explain following Rotate group of instructions, , Marking Scheme, , 2 Marks each, 1., 2., 3., 4., , RRC, RAR, RLC, RAL

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3., , What are the groups in which instructions in 8085 are Correct explanation with, classified? Give one example of each group., example. Any 4 groups, 1 mark for each group, , 4., , What do you understand by register indirect and implicit, Correct explanation with, addressing modes? Explain with suitable example. List down example., instructions which make accumulator content clear., 1 ½ mark for each mode, 1 mark for any two correct, instructions., , 5., , What are branching instructions? Explain the jumping, instructions with jump conditions., , Correct explanation with, example. Any 4 instructions, 1 mark for each instruction, , 6., , The accumulator of 8085 microprocessor contains data AAH, and register C contents 55H. What will be the contents of, accumulator if following instructions are executed, independently?, a) CMP C, b) ANA C c) ORA C d) SUB C, , 1 Mark for each subpoint, a) AAH, b) 00H, c) FFH, d) 55H, , 5 Mark Questions, Q. No, , Question, , Marking Scheme, , 1., , Write an assembly language program to divide two 8-bit hex Correct Program 4 marks, numbers where dividend is stored in memory location and Comments 1 mark, D000H and divisor is stored in memory location D001. Store, the quotient and the reminder in consecutive memory, locations., , 2., , Write an assembly language program to count number of Correct Program 4 marks, even data bytes occurring in a block starting from the and Comments 1 mark, memory location 7501H to 75FFH. Store result at memory, location 7600H., , 3., , Write an assembly language program to count the number of Correct Program 4 marks, times the data AD H is found in a block starting from C000 and Comments 1 mark, to C00FH. Store the result at memory location D000H., , 4., , Write an assembly language program to find out 2’s Correct Program 4 marks, compliment of five numbers stored from memory location and Comments 1 mark, F000H onwards. Store the result from memory address, D000H., , 5., , Write an assembly language program to transfer the block of Correct Program 4 marks, data stored from memory location D100H to D1FFH in and Comments 1 mark, reverse order in new memory location starting at D200H., , 6., , Write an assembly language program to divide all the Correct Program 4 marks

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numbers of a block by 2. Block is stored from 4000 to and Comments 1 mark, 4009H. Store result at the same place., 7., , Write an assembly language program to find largest number Correct Program 4 marks, from a block of data having starting address D001 H. and Comments 1 mark, Length of block is stored in location D000H. Store the result, at D060H., , 8., , Block of data is stored from memory location C050 H to, C05FH. Write an assembly language program to copy entire, block of data to a new location starting from C070H., , Correct Program 4 marks, and Comments 1 mark, , 9., , A hex number is stored at location 3000H. Write an, assembly language program to interchange its digits. The, new number is to be stored at 3001. Add original number, with new number and store the result at location 3010H., , Correct Program 4 marks, and Comments 1 mark, , 10., , Write a sub routine to fill the memory locations 2000H to, 2009H with data BBH and 44H alternatively., , Correct Program 4 marks, and Comments 1 mark, , 11., , Write an assembly language program to separate the nibbles, of a number stored at memory location 2000H. Multiply the, separated nibbles and store the result at memory location, 3000H., Write assembly language program to store data BCH in 20, contiguous memory locations starting from 8081H., , Correct Program 4 marks, and Comments 1 mark, , 12., , Correct Program 4 marks, and Comments 1 mark, , 13., , Write assembly language program to get decimal sum of, Correct Program 4 marks, series of numbers starts from C001H onwards. Block length and Comments 1 mark, is stored in C000H. Store result in C050 and carry in C051H., , 14., , Write assembly language program to subtract the number, stored in memory location 3601H from the number stored in, 3600H. Store the positive result at location 3602H., , Correct Program 4 marks, and Comments 1 mark, , 15., , Write assembly language program to add two 8 bit BCD, numbers stored at memory locations 5000H and 5001H., Store the result at memory location 5002H onwards starting, with LSB., , Correct Program 4 marks, and Comments 1 mark

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CHAPTER 3 - Introduction to INTEL X-86 Family – 4 mark, MCQ, 1, , Pentium processor has ….. bit data bus and ……bit address bus, i. 64, 32, ii. 32, 64, iii. 32, 32, iv. 16, 32, , Correct answer 1mark, , 2, , 8086 is a ……. bit processor, i. 32, ii.8, iii.16, iv.64, , Correct answer 1mark, , 3, , The maximum physical memory can be addressed by Pentium is ……, i. 16Gbytes, ii. 64 kbytes, iii. 4 Gbyte, iv. 1Mbytes, Which One of the following is not feature of Pentium processor ……., i. Can address 4G bytes of memory, ii. Branch prediction, iii. 32 bit data path, iv. On chip caches, …………. Processor uses non multiplex address bus, i. 8085, ii. 8086, iii. 80386, iv. 80286, 80386 is a ……., i. 32 bit Microprocessor, ii. 16 bit Microprocessor, iii. 64 bit Microprocessor, iv., 8 bit Microprocessor, , Correct answer 1mark, , ……….. Microprocessor has built in math coprocessor, i. 8086, ii. 8088, iii. 80386, iv. 80486, The size of Accumulator in 32 bit Microprocessor is ……….., i. 16 bit, ii. 32 bit, iii. 8 bit, iv., 64 bit, , Correct answer 1mark, , 4, , 5, , 6, , 7, , 8, , 4 Mark, , Correct answer 1mark, , Correct answer 1mark, , Correct answer 1mark, , Correct answer 1mark

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1, , 2, , 3, , 4, , 5, 6, 7, , 8, 9, , 10, , 11, , 12, , 13, , 14, , 15, , List the advanced microprocessors of INTEL X-86 family and mention List – 1 mark, three attributes of any one them., Three attribute- 3, Mark, Explain the main features of a Pentium Processor, Explanation, of, each, feature1mark, 1X4 =4 marks, Explain the advantage of the Pentium processor with respect to the, following features, 1 mark each, a) Dual pipelining, c) on chip caches, 1 X 4 =4, b) Branch prediction d)64 bit data path, Explain programming model for 16 bit version of X-86 family with Diagram, suitable diagram, - 1 mark, Explanation3 mark, Compare any four attributes of 80286 and Pentium microprocessor, 1 mark each point, 1X4 =4, State four differentiating features among any two X-86 family 1 mark each, Microprocessor, 1 x4=4, Draw a neat labeled diagram of flag register of X-86 family, Labeled Diagram, of, X86, flag, register, - 4 Marks, Draw neat labeled diagram of flag register of 8086 family, Labeled diag, - 4 marks, Explain programming model for 32 bit version of X-86 family with Diagram, suitable diagram., - 1 mark, Explanation3 mark, Draw programming models of X-86 16 bit and X-86 32 bit 16 bit Diagram, Microprocessor, -2mark, 32 bit model, diagram –, 2 mark, Compare any four attributes of 80286 and 80486, Each attribute, - 1 mark, - 1X4=4, Compare any four attributes of 80386 and Pentium processor, Each attribute, - 1 mark, - 1X4=4, Compare any four attributes of 80486 and Pentium processor, Each attribute, - 1 mark, - 1X4=4, Compare any four attributes of 8086 microprocessor with Pentium Each attribute, processor, - 1 mark, - 1 X4 =4, Write important features of any two microprocessors in X-86 family in Any, two, brief, processor, features- 2 mark, each, 2+2=4

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Chapter 4: Introduction to Microcontroller, MCQ, Q., No., 1, , 2, , 3, , 4, , 5, , 6, , 7, , 8, , 1 MARK, , Question, , 8051 microcontroller IC have ______ number of 8 bit I/O ports., i), 1, ii), 2, iii), 4, iv), 8, The 8051 microcontroller has instruction set of _______instructions., i), 101, ii), 110, iii), 99, iv), 111, _____ is a microcontroller chip., i), Intel 8085, ii), Intel 8086, iii), Intel 8052, iv), Intel 8008, 8051 is a ____ bit Microcontroller., i), 8, ii), 4, iii), 16, iv), 32, _________ is a Microcontroller., i), 8086, ii), 8051, iii), 8088, iv), 80286, Internal data memory of a Microcontroller is _____., i), 128 bytes, ii), 128 k bytes, iii), 256 bytes, iv), 4 k bytes, _______ is a characteristic feature of 8051 Microcontroller., i), Four 8 bit I/O ports, ii), Two 8 bit I/O ports, iii), 4 KB RAM, iv), Four external Interrupts., Which of the following is not a part of an 8051 single, chip microcontroller?, i), A 4 kbyte ROM, ii), Dual serial port, iii), 128 byte RAM, , Marking, scheme, Correct, answer, 1 mark, , correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark

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9, , 10, , 11, , 12, , 13, , 14, , iv), Four 8 bit parallel I/O ports, 8051 Microcontroller has clock up to _________., i), 12 MHz, ii), 4 MHz, iii), 9 MHz, iv), 6 MHz, The 8051 is a _____ generation microcontroller., i), First, ii), Second, iii), Third, iv), Fourth, The 8051 has ALU of _____ capacity., i), 64 bit i, ii), 32 bit, iii), 16 bit, iv), 8 bit, Internal program memory of 8052 microcontroller is _____., i), 4 byte, ii), 16 k byte, iii), 8 k byte i, iv), 64 k byte, __________ is not a microcontroller., i), 8052, ii), Pentium, iii), 8031, iv), 8048, 8051 microcontroller have _______ external interrupts., i), 1, ii), 2, iii), 3, iv), 4, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , Correct, answer, 1 mark, , 3 Marks Question, 1, , 2, 3, 4, Q., No., 5, 6, 7, , Write any two features of following Microcontrollers:, 1., 8049, 2., 8052, 3., 8031, State any six features of 8051 Microcontroller, Explain memory register map of 8051 microcontroller with suitable, diagram., State three expanded features of 8052 over 8051 Microcontroller., Question, , What is microcontroller?, Write any two of its advantages over microprocessor., Compare Microcontrollers 8051 and 8052 ., Write the RAM and ROM size of 8048, 8049 and 8050, , 1Mark each:, ½ x2, , ½ x 6=3, Mark, 3 Mark, 1 Mark x 3, Marking, scheme, 1 Mark, 2 Mark, 1 Mark x 3, RAM ½

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microcontrollers., , 8, 9, , Differentiate between microcontroller and a microprocessor., State any six applications of a Microcontroller., , Mark x 3, ROM ½, Mark x 3, 1 Mark x 3, ½ x 6=3, Mark, , 4 Marks Question, 1, 2, , Write any two features of following Microcontrollers:, i) 8048, ii) 8052, iii) 8031, iv) 8050, Explain with diagram, memory register map of 8051 Microcontroller., , 3, , Give any eight important features of 8051 Microcontroller., , 4, 5, , State and explain major features of 8051 Microcontroller., Explain in detail how 8051 microcontroller addresses two separate, memory spaces., Discuss the microcontrollers in 8051 family., , 6, , 7, , What is microcontroller?, State any three advanced features of 8052 Microcontroller over, 8051 microcontroller., , 1Mark x 4, Diagram 2, Mark, Explanation, 2 Mark, ½ Mark x, 8, 1Mark x 4, 2Mark x 2, Main, members of, 8051 family, 2Mark x 2, 1 Mark, 1 Mark x 3

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Chapter 5: Networking Technology, MCQ - 1 MARK, Q., No., 1, , Question, In _______ Topology all devices are connected to a central hub., i), Ring, ii), Star, iii), Bus, iv), None of the above, , Marking, scheme, Correct answer, 1 mark, , 2, , The mobile phone uses _______transmission technology., i), Radio, ii), Microwave, iii), Infrared, iv), Satellite, , Correct answer, 1 mark, , 3, , _______ cable uses light signals to transmit data., i), Fiber optic, ii), Coaxial, iii), UTP, iv), STP, , Correct answer, 1 mark, , 4, , If length of the cable is very long then ______ is used in between to bring, the weak signal to its original level., i), MODEM, ii), HUB, iii), REPEATER, iv), ROUTER, , Correct answer, 1 mark, , 5, , _____ is an example of wireless media., i), Optic fiber, ii), Microwave, iii), UTP i, iv), STP, , correct answer, 1 mark, , 6, , The installation cost of ______ cable is maximum., i), STP, ii), UTP, iii), Fiber optic, iv), Co-axial, , Correct answer, 1 mark, , 7, , ______cable type is ideal for connecting between two buildings., i), UTP, ii), STP, , Correct answer, 1 mark

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iii), iv), 8, , Co axial, Flat, , If the network is to be executed beyond predefined cable limit _______ is, used., i), Modem, ii), Repeater, iii), Hub, iv), router, The process of modulation and demodulation is done by a device namely, _______., i), Hub, ii), Repeater, iii), Router, iv), Modem, All the systems on a network must follow a set of common rules called as, _______., i), Interface, ii), Protocol, iii), Conventions, iv), None of the above, _______cable has highest sensitivity to EMI., i), STP, ii), Fiber optic, iii), UTP, iv), Co axial, BUS topologies are suitable for networks that uses _____ access methods., i), Contention based, ii), token passing, iii), polling, iv), None of these, , Correct answer, 1 mark, , 13, , _______ does not regenerate the computer signal in networks., i), Passive hub, ii), Active hub, iii), Repeater, iv), All the three, , Correct answer, 1 mark, , 14, , ______cable type supports the greatest cable length for computer, networking., i), UTP, ii), STP, iii), Thick net co axial, iv), Thin net co axial, _______cable has highest bandwidth., i), Fiber Optic, ii), UTP, iii), STP i, iv), co axial, , Correct answer, 1 mark, , 9, , 10, , 11, , 12, , 15, , Correct answer, 1 mark, , Correct answer, 1 mark, , Correct answer, 1 mark, , Correct answer, 1 mark, , Correct answer, 1 mark

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16, , EMI is minimum in case of _______ cable., i), Fiber Optic, ii), UTP, iii), STP, iv), co axial, , Correct answer, 1 mark, , 3 Mark questions, 1, , Explain HUB and Repeater in detail., , 2, , Explain Fiber optic cable with a suitable diagram., , 3, , Explain the following attributes of transmission medium :, i) Bandwidth ii) Band usage iii) Attenuation., , 4, , Define Bus, Ring, Star topologies. Draw simple diagrams for each., , 5, , Explain Ring topology with diagram. State its two advantages., , 6, , Write a short note on STP cable with suitable diagram and give its any, two characteristics., , 7, , What is modem?, Explain working of MODEM and specify types of MODEMS., , 8, , Explain UTP cable with its any four characteristics., , 9, , Explain co axial cable with suitable diagram and give its any two, advantages., , 10, , Give at least two advantages and one disadvantage of wireless media over, cable media., , 11, , List various network access methods and explain any one of them., , 12, , Explain the following attributes of transmission medium :, i) Installation requirement ii) EMI iii) Attenuation., , 1 ½ mark each, Diagram 1 Mark, Explanation 2 Mark, 1 Mark x 3, , 1 Mark each :, Def. ½ Mark, Diagram ½ Mark, Explanation 1 & ½, Diagram ½ Mark, Advantages ½ x, 2Mark, Diagram 1Mark, Explanation 1 Mark, Charac. ½ x 2 Mark, 1 Mark, 2 Mark, UTP cable 1Mark, Charac. ½ x 4 Mark, Diagram 1Mark, Explanation 1 Mark, Advant. ½ x 2 Mark, Advantages 2 Mark, Disadv., 1Mark, Methods ½ x 3, Explanation 1 1/2, 1 Marks each, , 13, , Enlist three types of hubs., Write its functions in one sentence., , ½ mark each, ½ marks each, , 14, , Explain function of Router in the network., List different types of routers., , 2 marks, 1 marks, , 15, , What is meant by protocol?, Explain concept of TCP /IP protocol., , 1 mark, 2 marks, , 16, , Distinguish between STP and UTP cables. ( Any three points ), , 1 mark x 3

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17, , Differentiate between LAN and WAN. ( Any three points ), , 18, , Enlist six characteristics of transmission media., , 19, , Explain STAR topology with diagram. Also give two advantages and, disadvantages., , 20, , Compare any three characteristics of Twisted pair cable with coaxial, cable., , 21, , What is wireless media?, Write any two advantages of wireless media., , 1Mark, 2 Mark, , 22, , Write a short note on Modem., , 3 Mark, , 1, , Explain any four characteristics of transmission media., , 1Mark x 4, , 2, , Explain STAR and RING Topologies with suitable diagram., , 3, , Explain following network devices with diagram, i) Router ii) Repeater, , For each topology: 2, Mark, Diagram, 1 Mark, Explanation 1 Mark, For each device, 2Mark, Diagram 1 Mark, Explanation 1 Mark, , 4, , Explain in brief the following access method:, i) Contention, ii) Token passing, , 1 mark x3, ½ x 6 = 3 mark, Diagram 1 mark, Advantages ½ x 2, Mark, Disadvantages ½ x 2, Mark, 1Mark x 3, , 4 Marks question, , 2 Mark, 2 Mark, , 5, , Explain Token passing and Polling access method., , 2 Mark for each, method, 1Mark x 4, , 6, , Differentiate between co-axial cable and fiber optic cable., , 7, , What is transmission media?, Give six characteristics of transmission media., , 1 Mark, ½ Mark x 6, , 8, , What is Ethernet? Write a short note on Ethernet., , 9, , Compare any four attributes of Coaxial thicknet cable with UTP cable., , 1 Mark, 3 Mark, 1 Mark x 4, , 10, , Explain the following attributes of transmission medium :, i) Bandwidth ii) EMI iii) Band usage iv) Attenuation., , 1 Mark x 4, , 11, , Compare any four attributes of UTP and optical fiber cable., , 1 Mark x 4, , 12, , Write any two advantages and two disadvantages of optical fiber cable., , Advantages 2 Mark, Disadvantages 2

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13, , What is network topology?, Explain in brief two basic categories of topology., , Mark, 1 Mark, 1 ½ Mark each