EC8552 MCQ – EC8552 UNIT V ADVANCED COMPUTER ARCHITECTURE MCQ TEST 4 October 29, 2020 admin Leave a comment Welcome to your EC8552 MCQ - EC8552 UNIT V ADVANCED COMPUTER ARCHITECTURE MCQ TEST 4 Your Name Your Email A collection of lines that connects several devices is called ..............? Bus peripheral connection wires internal wires Both a and b A complete microcomputer system consist of ...........? microprocessor memory peripheral equipment all of the above PC Program Counter is also called ...................? instruction pointer memory pointer data counter data counter In a single byte how many bits will be there? 8 16 4 32 CPU does not perform the operation ..................? data transfer logic operation arithmetic operation all of the above The access time of memory is ............... the time required for performing any single CPU operation? Longer than Shorter than Negligible than Same as Memory address refers to the successive memory words and the machine is called as ............? word addressable byte addressable bit addressable Terra byte addressable A microprogram written as string of 0's and 1's is a .............? Symbolic microinstruction binary microinstruction symbolic microinstruction binary micro-program A pipeline is like ....................? an automobile assembly line house pipeline both a and b a gas line Data hazards occur when .....................? Greater performance loss Pipeline changes the order of read/write access to operands Some functional unit is not fully pipelined Machine size is limited Processors of all computers, whether micro, mini or mainframe must have? ALU Primary Storage Control unit All of above What is the control unit's function in the CPU? To transfer data to primary storage to store program instruction to perform logic operations to decode program instruction What is meant by a dedicated computer? which is used by one person only which is assigned to one and only one task which does one kind of software which is meant for application software only The most common addressing techiniques employed by a CPU is? immediate direct indirect register all of the above Pipeline implement? fetch instruction decode instruction fetch operand calculate operand execute instruction all of the above Which of the following code is used in present day computing was developed by IBM corporation? ASCII Hollerith Code Baudot code EBCDIC code When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the? stack pointer accumulator program counter Stack A microprogram written as string of 0's and 1's is a? symbolic microinstruction binary microinstruction symbolic microprogram binary microprogram Interrupts which are initiated by an instruction are? internal external hardware Software Memory access in RISC architecture is limited to instructions? CALL and RET PUSH and POP STA and LDA MOV and JMP From where interrupts are generated? Central processing unit Memory chips Registers I/O devices The output of a gate is low when at least one of its input is low . It is true for? AND gate OR gate NAND gate NOR gate Which one of the following is most suitable to make a parity checker? AND gate OR gate Exclusive- OR gate None of the above What is the minimum number of flip-flops required in a counter to count 100 pulses? Five seven Ten hundred For a RS flip-flop constructed with NAND gates and input R=1 and s=1 the state is? Memory state Set state Reset state Unused state The advantage of RISC processor over CISC processor is that? The hardware architecture is simpler An instruction can be executed in one cycle Less number of registers accommodate in chip Parallel execution capabilities Which of the following is true about interrupts? They are generated when memory cycles are stolen They are used in place of data channels They can be generated by arithmetic operation They can indicate completion of an I/O operation The devices connected to a microprocessor can use the data bus? all the time at regular interval of time only when it’s sending or receiving data when the microprocessor is reset Dynamic RAMs are best suited to? slow system large system one bit system none of the above Intel Pentium CPU is a? RISC based CISC based Both of the above None of the above A modem is used to link up two computers via? telephone line dedicated line both The maximum integer which can be stored on a 8 bit accumulator is? 112 200 255 224 Which of the following bus is used to transfer data from main memory to peripheral device? DMA bus Output bus Data bus To provide increased memory capacity for operating system, the? virtual memory is created cache memory is increased memory for OS is reserved Additional memory is installed In immediate addressing the operand is placed? in the CPU register after opcode in the instruction in the memory in the stack Pipeline processing implement? fetch & decode instruction fetch & calculate operand execute instruction all of the above Instruction pipelining has minimum stages? 4 2 3 6 Time is Up!
