Search Engines Index Web Pages Using Programs Known as Bots

question 24

Multiple Choice

Search engines index web pages using programs known as bots or ____.

• A) viruses
• B) worms
• C) climbers
• D) crawlers

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Definitions:

Condensers

In the context of laboratory equipment, condensers are devices used to cool vapors and condense them into liquids; in electrical engineering, they are an older term for capacitors, components that store electrical energy.

Oil-Immersion Objective

A microscope objective lens designed to be used with a drop of oil to increase resolution by reducing refraction of light.

Total Magnification

The overall enlargement of an image seen with a microscope, calculated by multiplying the objective lens magnification by the ocular lens magnification.

Depth of Field

In photography and optics, the distance between the nearest and the furthest objects that are in acceptably sharp focus.