2. Which of the following statements correctly describes DNS root domains? (Choose
all that apply.)
a. The root domain is at the top of the hierarchy.
b. The root domain is at the bottom of the hierarchy.
c. The root domain is represented by a two- or three-character name code.
d. The root domain is represented by a period (.).
The correct answers are A and D. B is not correct because the root domain is at the top of thehierarchy. C is not correct because the root domain is represented by a period (.); top-leveldomains are represented by a two- or three-character name code.
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