DSM Chapter 7

__________ consists only of computers, a connection medium, network operating system software, and either a hub or a switch.

A basic network

Which of the following statements best describes a local area network (LAN)?

A local area network (LAN) is designed to connect personal computers and other digital devices within a half-mile or 500-meter radius.

What is a virtual private network (VPN)?

A virtual private network (VPN) is a secure, encrypted, private network that has been configured within a public network to take advantage of the economies of scale and management facilities of large networks.

What is an Internet Protocol (IP) address?

An IP address is the unique string of numbers assigned to a device connected to the Internet.

Which of the following describes cable Internet connections?

Cable Internet connections use digital cable coaxial lines to deliver high-speed Internet access to homes and businesses.

Which of the following will best help Daniel establish such a connection?

Digital subscriber line (DSL)

What does the Domain Name System (DNS) convert?

Domain names to IP addresses

__________ are very simple devices that connect network components, sending a packet of data to all other connected devices.

Hubs

Which of the following is a network that spans a city and its major suburb?

Metropolitan area network

Which of the following statements is true of packet switching?

Packet switching is a method of slicing digital messages into parcels called packets, sending the packets along different communication paths as they become available, and then reassembling the packets once they arrive.

__________ provide(s) a powerful technology for tracking the movement of goods using tiny tags with embedded data about an item and its location.

Radio frequency identification (RFID) systems

__________ establishes a connection between the computers, sequences the transfer of packets, and acknowledges that the packets were sent.

Transmission Control Protocol

__________ delivers voice information in digital form using packet switching, avoiding the tolls charged by local and long-distance telephone networks.

Voice over IP (VoIP)

________ refer to networks of interconnected wireless devices with built-in processing, storage, and radio frequency sensors and antennas that are embedded into the physical environment to provide measurements of many points over large spaces.

Wireless sensor networks (WSNs)

Which of the following major Internet services is used to retrieve, format, and display information using hyperlink links?

World Wide Web

Bluetooth differs from WiMax in that Bluetooth __________.

can only link up to eight devices within a 10-meter area

The __________ routes and manages communications on the network and coordinates network resources.

network operating system

3G networks differ from 4G networks in that 3G networks __________.

offer fair transmission speeds for browsing the Web but are too slow for videos

The Internet is the most universal and powerful __________.

wide area network