C952 - Computer Architecture Study Guide 2024

Which access does a register file rely on to properly function? - answersRead and Write access What is the binary representation of instructions? - answersMachine Language Which feature of the IBM 360/91 was incorporated into the majority of microprocessors developed in the 21st century? - answersAlgorithm innovations allowed the improved parallel execution of instructions Which Key design element changed in 2005 to drive continued improvements in computing capability? - answersMultiprocessor architecture Which term refers to the same instruction applied to multiple data streams? - answersSIMD what makes vector-based code more efficient than conventional code? - answersFrequency of pipeline hazards is lower. Which two elements are required to implement R-format arithmetic logic unit (ALU ) operations? - answersALU and register file Which component of a computer moderates the action of its other components? - answersControl Given the following 8-bit integer binary variables: X1= X2= What is the value in X3 after the following command? ADD X3, X2, X1 - answersOverflow What is the approximate range of a 64-bit unsigned integer? - answers0 to 18,446,744,073,709,551,615 64^64 How is the integer 255 represented in memory? - answers What does extending to 16 bits yield given -5 in 8bit 2's complement - answers How many minutes does it take to wash, dry, and fold four loads of laundry using a pipelining approach, given the following information? One washer takes 30 min One dryer takes 40 min One folder takes 20 min - answers210 The manufacturing process for producing a widget has five steps and each step in the process takes one day. What is the average number of days needed to manufacture each widget using a pipelined process to produce 10 widgets? - answers1.4 Which locality principle states that if a data location is referenced then it will tend to be referenced again soon? - answersTemporal What does each bank of modern DRAMS consist of? - answersBuffers What is meant by pipelining in computer architecture? - answersIt employs an implementation technique where multiple instructions are overlapped in execution. What is superscalar as it relates to parallelization? - answersA technique that enables the processor to execute more than one instruction per clock cycle by selecting them during execution The value of b is stored in r1, c is stored in r2, and a is stored in r0. Which set of ARM instructions will accomplish a = b & c? - answersAND r0, r1, r2 Registers X1, X2, X3 have corresponding data stored in each location: X1: a X2: B X3: C which set of ARM instructions will accomplish A=B+C? - answersAdd X1, X2, X3 The variables f and g are assigned to the registers X3 and X4, respectively in these ARM instructions. Loop: SUBS XZR, X3, X4 B.GE Exit LSL X3, X3, 1 B Loop Exit: What are the corresponding statements in the C language? - answerswhile (f g) {f = f 1;} Given this set of ARM instructions, where b is at offset 0, e is at offset 8, and a is at offset 24: LDUR X1 [X0, #0] LDUR X2 [X0, #8] ADD X3, X1, X2 STUR X3, [X0, #24] What is the corresponding C language statement? - answersa = b + e; What is the number of bits used in virtual memory with ARMv8? - answers48 Which register will be populated with the reason for an exception in LEGv8 architecture? - answersESR Which statement about the operating system describes how virtual memory is allocated in ARM architecture? - answersIt loads the page table register to refer to the page table of the process. What is used by virtual memory to increase performance? - answersTranslation-lookaside buffer What maps virtual memory to real memory by using page tables? - answersEach guest operating system managers virtual memory independently What are two benefits of using virtual machines? - answersSoftware abstraction Hardware separation Which type of processing is used if a program executes a process that takes turns waiting for user input? - answersSequential Which factor in parallel processing is not bound by Amdahl's Law? - answersweak scaling