Exam 7: Telecommunications, the Internet, and Wireless Technology

An NOS must reside on a dedicated server computer in order to manage a network.

A(n)________ signal is a discrete,binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

Contemporary digital networks and the Internet are based on four key technologies: client/server computing,the use of packet switching,the development of widely used communications standards and PC operating systems.

When employees use e-mail or the Web at employer facilities or with employer equipment,anything they do,including anything illegal,________ the company's name.

Together,a protocol prefix,a domain name,a directory path,and a document name,are called a(n)

What are some of the defining features of Web 2.0?

________ work(s)by using radio waves to communicate with radio antennas placed within adjacent geographic areas.

The telephone system is an example of a ________ network.

A ________ is a network that spans a metropolitan area,usually a city and its major suburbs.Its geographic scope falls between a WAN and a LAN.

Due to continuing telecommunications ________ and information technology innovation,telephone and computer networks are slowly converging into a single digital network using shared Internet-based standards and equipment.

Ethernet is the dominant LAN standard at the physical network level,specifying the physical medium to carry signals between computers;access control rules;and a standardized set of bits used to carry data over the system.

The Wi-Fi 802.11a standard can transmit up to

Linda has been reading in the popular press all about RFID and wireless sensor networks.She is in the livestock business and wonders if there might be some applications of this technology in her industry.Linda first wants to understand the basics of these technologies.Describe for her why radio frequency identification (RFID)and wireless sensor networks can be valuable for business.

All network components connect to a single hub in a ________ network.

To use an analog telephone system for sending digital data,you must us

Every computer on the Internet is assigned the same Internet Protocol (IP)address,which currently is a 32-bit number represented by four strings of numbers ranging from 0 to 255 separated by periods.

Prior to the development of ________,computer networks used leased,dedicated telephone circuits to communicate with other computers in remote locations.

Companies that allow employees to use personal e-mail accounts at work face legal and regulatory trouble if they do not ________ those messages.

The ________layer is responsible for placing packets on and receiving them from the network medium,which could be any networking technology.

A network that spans a city,and sometimes its major suburbs as well,is called a