Nick Is Working on a Computer at a Customer's House

question 58

Multiple Choice

Nick is working on a computer at a customer's house. The customer is concerned that her computer has a problem because recently the Internet home page changed, and when she tried to search the Internet, a strange search engine appeared. ​
What has happened to the customer's computer?

• A) The computer is infected with a network worm.
• B) The computer is infected with a redirect virus.
• C) A new web browser was installed.
• D) A new browser add-on was installed.

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Definitions:

Barter Economy

An economic system where goods and services are exchanged directly for other goods and services without the use of money.

Coincidence of Wants

A situation in a barter system where two parties each hold an item the other wants, enabling a direct exchange without money.

Medium of Exchange

A mediating tool or mechanism that assists in the buying, selling, or exchanging of items among individuals.

Exchange of Currencies

The act of trading one country's currency for another, facilitating international trade and investment through the foreign exchange market.