Exam 6: Databases and Data Warehouses

What is a computer network that uses cables or radio signals to link two or more computers within a geographically limited area, generally one building or a group of buildings?

A PDA differs from a normal cell phone in that it has an operating system and local storage, so users can add and store data, send and receive email, and install programs to the phone as they could with a smartphone.

The key advantage of providing data communication links between a company and its suppliers or customers is the sharing of data.

LAN is a way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization's network.

Distinguish between mobile and wireless technologies.

What is a company that offers an organization access over the Internet to systems and related services that would otherwise have to be located in personal or organizational computers?

____________________ has long been one of the most popular VoIP options for consumers-largely because of its low cost.

List different telecommunications transmission media and suitable network along with speed.

_____________________ is the difference between the highest and the lowest frequencies that can be transmitted on a single medium, and it is a measure of the medium's capacity.

The global positioning system is owned and operated by the U.S. Department of Defense and is not available for general use around the world.

Which networks use a newer packet-switched technology that is much more efficient (and hence faster) than dedicated circuit-switched networks?

List and discuss concerns about a number of privacy issues associated with location-based services (LBS).

Which of the following is a driver of wireless growth?

Which of the following technologies provides highest speed?

A(n) _____________________ differs from a normal cell phone in that it has an operating system and local storage, so users can add and store data, send and receive email, and install programs to the phone as they could with a PDA.

________ is a company that provides individuals and other companies access to the Internet along with additional related services, such as website-building.

_______ is a way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization's network.

The term bandwidth generally refers to high-speed Internet connections transmitting data at speeds greater than 200 kilobytes per second (Kbps), compared to the 56 Kbps maximum speed offered by traditional dial-up connections.

FedEx's famous tracking system, which can find a package's location from its tracking number, uses a wireless courier-management system.

What is immediate, up-to-date information?