WGU C952 Computer Architecture PGKO Pre-Assessment Practice Questions and Answers Rated A+

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WGU C952 Computer Architecture PGKO Pre-Assessment Practice Questions and Answers Rated A+ Which access does a register file rely on to properly function? a) Read and write access b) Write only access c) Read only access d) No access ✔✔a What is the binary representation of instructions? a) Machine language b) Assembly language c) Operating system d) Systems software ✔✔a Which feature of the IBM 360/91 was incorporated into the majority of microprocessors developed in the 21st century? a) Branch prediction allowed the processor to proceed with the next instruction. b) Algorithm innovations allowed the improved parallel execution of instructions. c) Pipeline innovations allowed for reservation stations and the commit unit. d) Pipeline innovations allowed for dynamically scheduled pipelined processors. ✔✔b Which key design element changed in 2005 to drive continued improvements in computing capability? a) Multiprocessor architecture b) Transistor architecture c) DRAM technology d) Frame buffering ✔✔a Which term refers to the same instruction applied to multiple data streams? a) SIMD b) MIMD c) SPMD d) SISD ✔✔a What makes vector-based code more efficient than conventional code? a) Usage of LEGv8 architecture code b) Usage of Multimedia extensions (MMX) c) Frequency of pipeline hazards is higher d) Frequency of pipeline hazards is lower ✔✔d Which two elements are required to implement R-format arithmetic logic unit (ALU) operations? a) ALU and register file b) ALU and GPU c) GPU and register file d) Datapath and COD ✔✔a Which component of a computer moderates the action of its other components? a) Control b) Datapath c) Memory d) Output ✔✔a Given the following 8-bit integer binary variables: X1 = 11000110 X2 = 11110111 What is the value in X3 after the following command? ADD X3, X2, X1 a) Overflow b) 100111101 c) 11000110 d) 11110111 ✔✔a What is the approximate range of a 64-bit unsigned integer? a) −9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 b) −2,147,483,648 to 2,147,483,647 c) 0 to 4,294,967,295 d) 0 to 18,446,744,073,709,551,615 ✔✔d How is the integer 255 represented in memory? a) 0000 0000 0000 0000 0000 0000 0000 0111 b) 0000 0000 0000 0000 0000 0000 0000 1111 c) 0000 0000 0000 0000 0000 0000 0111 1111 d) 0000 0000 0000 0000 0000 0000 1111 1111 ✔✔d What does extending to 16 bits yield given -5 in 8-bit 2's complement 11111011? a) 11111100 11111011 b) 11111111 11111011 c) 01111111 11111011 d) 00111111 11111011 ✔✔b 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 minutes • One dryer takes 40 minutes • One folder takes 20 minutes a) 90 b) 170 c) 210 d) 360 ✔✔c The manufacturing process for producing a widget has 5 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? a) 0.5 b) 1.4 c) 5 d) 14 ✔✔b Which locality principle states that if a data location is referenced then it will tend to be referenced again soon? a) Spatial b) Residual c) Temporal d) Canonical ✔✔c What does each bank of modern DR

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