Random-Digit Dialing

question 25

Multiple Choice

Random-digit dialing

• A)means that the researcher uses different fingers when dialing numbers.
• B)compounds the problems of telephone directories.
• C)nets many disconnected or non-operating numbers.
• D)requires caller-ID.

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Definitions:

Foramen Magnum

A large opening in the base of the skull through which the spinal cord connects to the brain.

Foramen Ovale

An opening in the septum between the two atria of the heart in a fetus, allowing blood to bypass the lungs.

Optic Canal

A narrow passageway in the skull through which the optic nerve and ophthalmic artery pass to the eye.