Which of the Following Is True of Galaxies

question 37

Multiple Choice

Which of the following is true of galaxies?

• A)each galaxy has one star.
• B)galaxies are measured by the speed of sound.
• C)a typical galaxy,such as the Milky Way,is about 5 billion miles in diameter.
• D)great clouds of gas and dust known as nebula occur within galaxies.
• E)three galaxies exist in the universe.

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Definitions:

Extranet

A private network that allows access to partners, vendors, and selected external parties, extending certain computing resources and information beyond an organization's intranet.

Intranet

A private network accessible only to an organization's staff, often used to store company information, tools, and resources securely.

Wireless Network

A communication network that uses radio waves or other wireless methods to connect devices without the need for physical cables.

Phishing Attempt

A cyber-attack where the attacker pretends to be a trusted entity to trick individuals into providing sensitive data, often via email.