Networks and the Internet

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

How is the bandwidth of a network measured?

• Bitrate. Higher bitrate means higher bandwidth

• Voltage. Higher voltage means higher bandwidth

• Frequency of waves. Higher frequency means higher bandwidth

• Light. More light means higher bandwidth.

What is the bitrate of a system?

• The number of bits used to encode a single letter

• The amount of data (in bits) that can be sent in a fixed amount of time

• The strength of the network connection

• The distance that data needs to travel in a network

Which of the following is a benefit of the fault-tolerant nature of Internet routing?

• The ability to use a hierarchical naming system to avoid naming conflicts

• The ability to provide data transmission even when some connections between routers have failed

• The ability to resolve errors in domain name system (DNS) lookups

• The ability to use multiple protocols such as hypertext transfer protocol (HTTP), Internet protocol (IP), and simple mail transfer protocol (SMTP) to transfer data.

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 information is contained in a packet?

• The entirety of a digital message

• The entirety of a digital message, and metadata about the message, including where it came from and where it is going

• A small part of a digital message.

• A small part of a digital message, and metadata about the message, including where it came from and where it is going

What is the purpose of the Digital Millennium Copyright Act?

• To make all content on the Internet free for everyone to use.

• To criminalize the act of circumventing, or getting around, access controls that block access to copyrighted works.

• To make the internet open and accessible to all

• To help get rid of copyright laws

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