Availability is the most important consideration for designing servers, followed closely by scalability and throughput.

a. We have a single processor with failures in time (FIT) of 100. What is the mean time to failure (MTTF) for this system?
b. If it takes 1 day to get the system running again, what is the availability of the system?
c. Imagine that the government, to cut costs, is going to build a supercomputer out of inexpensive computers rather than expensive, reliable computers. What is the MTTF for a system with 1000 processors? Assume that if one fails, they all fail.

Two technicians are discussing the common u-joint. technician a says its input and output speeds should be equal. technician b says that it normally has two yokes. which technician is correct?

The three logical operators used to write compound conditions are "and," "or," and "not." a: true b: false

When early motion pictures played in movie theaters, they were often accompanied by live organ or piano music. which of the following are the most likely reasons that this happened? (select all that apply). the music was provided to distract audience members from the loud sounds made when filmstrips were changed. the music accompanied the movies because the movies were silent and audiences were used to hearing music during plays in theaters. the music usually was played before, and sometimes after the movie, as an alternative form of entertainment. the music viewers to interpret the dramatic action in the films.