Exam 7: Telecommunications, the Internet, and Wireless Technology

An ________ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.

In the domain name "http://myspace.blogging.com," what are the root,top-level,second-level,and third-level domains,respectively?

John is evaluating the new system of computing that has just been installed in his firm.The new ________ computing has extended computing to various departments,workgroups,factory floors,and other parts of the business that could not be served by the centralized architecture that was replaced with this new system.

A(n)________ is software for locating and managing stored Web pages.

A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a

The ________ enables client application programs to access the other layers and defines the protocols that applications use to exchange data.One of these application protocols is the Hypertext Transfer Protocol (HTTP),which is used to transfer Web page files.

Packet switching makes much more ________ use of the communications capacity of a network.

To keep internal data secure,a company employing an extranet must be sure to put a ________ in place.

VoIP technology delivers video information in digital form using packet switching.

________ systems,both terrestrial and celestial,transmit high-frequency radio signals through the atmosphere and are widely used for high-volume,long-distance,point-to-point communication.

The total amount of digital information that can be transmitted through any telecommunications medium is measured in

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

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

In a few years,more than half the Internet users in North America will use ________ and mobile netbooks to access the Internet.

The regional networks lease access to ________.

You have been hired by a small new Web design firm to set up a network for its single office location.The network is primarily needed for exchanging files,accessing and managing beta Web sites on their Web server,and connecting to the Internet.The firm hires many freelancers who come into the office on an ad hoc basis and it does not have a lot of money to spend on infrastructure.What type of network will you recommend?

An ________ is represented by a continuous waveform that passes through a communications medium;analog signals are used for voice communication.

Which type of network treats all processors equally,and allows peripheral devices to be shared without going to a separate server?

Newsgroups are worldwide discussion groups posted on Internet electronic bulletin boards on which people share information and ideas on a defined topic,such as radiology or rock bands.

One or more access points positioned on a ceiling,wall,or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as