The Concentration of Oxygen in the Atmosphere Has Been near or Above

question 71

Multiple Choice

The concentration of oxygen in the atmosphere has been near or above its current value for the past

• A) 200 million years
• B) 542 million years
• C) 65 million years
• D) 360 million years

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Definitions:

Password/PIN

Security measures used to protect access to devices and accounts, consisting of a secret series of characters (password) or numbers (PIN) known only to the user.

Smart Card

A small ID-size card that can store data, be encrypted, and swiped through and/or interact wirelessly with a smart card reader. Examples of smart cards are identification, medical, credit, and access card.

Spear Phishing

A targeted attempt to steal sensitive information through email by pretending to be a trusted entity, aiming specifically at an individual or organization.

Brute-force Attack

A trial and error method used by applications to decode encrypted data such as passwords through exhaustive effort rather than intellectual strategies.