Unit 3 Review

A city government is attempting to reduce the digital divide between groups with differing access to computing and the Internet.

Which of the following actions is LEAST likely to be effective in this purpose?

• Holding basic computer classes at community centers

• Providing free wireless Internet connections at locations in low-income neighborhoods

• Putting helpful tips for operating computers on the city government website

• Requiring that every school and library have assistive devices that allow people with disabilities to access computer resources

Which of the following best explains what happens when a new device is connected to the Internet?

• A device driver is assigned to the device.

• An Internet Protocol (IP) address is assigned to the device

• A packet number is assigned to the device.

• A Web site is assigned to the device

A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent back to the user?

• The file is broken into packets and sent over a network. The packets must be reassembled by the user’s computer when they are received. If any packets are missing, the browser re-requests the missing packets.

• he file is broken into packets and sent over a network. The user’s browser must request each packet, in order, until all packets are received.

• The server attempts to connect directly to the user’s computer. If the connection is successful, the entire file is sent at once. If the connection is unsuccessful, an error message is sent to the user.

• The server repeatedly attempts to connect directly to the user’s computer until a connection is made. Once the connection is made, the entire file is sent.

Which of the following is LEAST likely to indicate a phishing attack?

• An email from a website asks that you click on a link to reset your password.

• An email from your bank asks you to call the number on your card to verify a transaction.

• An email from your water utility company asks you to enter your date of birth and social security number for verification purposes.

• An email indicates you have won money, and asks you to enter your bank account number so the money can be transferred

Which of the following is a benefit that online shopping websites provide over brick and mortar stores?

• Users can try out an item before they buy it

• Users can easily pay with cash in person

• Users can easily see product reviews and determine if an item has been satisfactory for a large number of people

• There is no wait time between purchasing an item and having access to it

What is the Internet Protocol (IP)?

• A set of rules describing what behavior is acceptable on the Internet

• A law that says that the Internet is for everyone

• A protocol that defines the structure of an Internet address and assigns a unique address to every device on the Internet

• An agreement that sets a limit on the number of computers than can be on the Internet at any given time

What is the function of the Domain Name System (DNS)?

• To sell website names to web developers

• To assign a unique domain name to every computer

• To make sure that each IP address has only one corresponding domain name

• To translate domain names into IP addresses

Is the following statement true, or false:

Everyone in the world has internet access.

• True

• False

Which of the following activities poses the greatest personal cybersecurity risk?

• Making a purchase on an online store that uses public key encryption to transmit information

• Paying a bill using a secure online electronic payment system

• Purchasing a couch by emailing a credit card number to the couch owner

• Checking a bank account on a bank’s website that uses HTTPS for secure communication

Which of the following statements are true about the Internet?

I - The Internet connects devices and networks all over the world

II - The Internet helps people collaborate to solve problems

III - The Internet helps people communicate

IV - There are no negative consequences of the Internet, it is purely positive

• I only

• I and II only

• I, II, and III

• II, III, and IV