Question

which of the following is the most effective keyword search for finding information about the tallest buildings?
b) tall building info
a) tallest skyscrapers in the world
d) big structure
c) building
question 7
which query uses both a limiter and an exact phrase to find a pdf file?
c) \history of the texas rangers\ file type: pdf
d) site:gov texas rangers
a) texas rangers history file
b) history \texas rangers\

Explanation:

For the first question, "tallest skyscrapers in the world" is specific to the tallest buildings. "tall building info" is less specific, "big structure" is very general, and "building" is too broad. For the second question, in "history of the Texas Rangers" file type: pdf, the exact - phrase is "history of the Texas Rangers" and the limiter is "file type: pdf". The other options lack either an exact - phrase or a limiter for the PDF file type.

Answer:

1. A. tallest skyscrapers in the world
2. C. "history of the Texas Rangers" file type: pdf