Atechnician is checking the operation of the electronic throttle control (etc) system using a factory or factory-level scan tool. to perform this test on a chrysler vehicle, you would use the "throttle follower test" as shown on the scan tool. which of the following is needed to perform this process? a. an assistant to check that the throttle plate is moving b. nothing—the throttle will perform a self-test by closing and then opening. c. a running engine d. an assistant to hold open the throttle plate

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?

Some peer-to-peer networks have a server and some don't. true false