PrepTest 131, Section 4, Question 1
Passage A Recent studies have shown that sophisticated(474 more words not shown)
Passage A(227 more words not shown)
Passage B(255 more words not shown)
Which one of the following(9 more words not shown)
- AMany difficult problems(5 more words not shown)
- BSequential computing is(10 more words not shown)
- CThere is currently(12 more words not shown)
- DComplex biological and(12 more words not shown)
- EInherently parallel computing(13 more words not shown)
Reading the passage
We've already predicted B's main point: parallel computing is becoming more important because it suits problems with many parts operating at once. The ant colony helps explain that idea; it isn't the entire point.
What we’re looking for
Look for the change in computing, with room for wording that is less detailed than our prediction.
Working the answers
- A
This gives us the kind of problem being discussed but leaves out the response: the shift toward computers working in parallel to solve it.
- B
The claim that sequential computing is “no longer useful” goes too far. B identifies speed limits on sequential computing; it doesn't declare that approach useless. More basically, this leaves out the parallel computing that B is promoting.
- CCorrect
This captures the central change we predicted. The final paragraph explicitly announces a “great paradigm shift” from sequential to massive parallel computing. The earlier discussion explains why that change makes sense.
- D
Biological and social systems are examples of complex problems. B doesn't establish that they are the next frontier, and this answer leaves out the new computing approach used to address them.
- E
B favors systems that work in parallel. It doesn't say computers should be modeled on the human mind.
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