Exam 6: Telecommunications and Networks

_____ is a form of wireless communications frequently used in security systems for sensing and controlling energy-consuming devices.

Briefly describe how a Wi-Fi network operates.

Telecommunications is creating profound changes in business because it strengthens the barriers of time and distance.

A(n) ______ network is a telecommunications network that connects large geographic areas.

_____ is a(n) transmission media type that uses twisted pairs of copper wire that may be shielded or unshielded.

_____ operates like Wi-Fi, only over greater distances and at faster transmission speeds.

One way to help safeguard a wireless network is to _____

_____ is a very short range wireless connectivity technology designed for cell phones and credit cards.

A metropolitan area network is a telecommunications network that connects users and their computers in a geographical area that spans a campus or city.

A(n) _____ satellite system employs many satellites, each in an orbit at an altitude of less than 1,000 miles.

A half-duplex channel can transmit data in either direction but not both simultaneously.

The ITU defines and adopts global standards to facilitate communications among network and equipment manufacturers around the world.

_____ refers to the electronic transmission of signals for communications.

A(n) _____ channel permits data transmission in both directions at the same time.

A geo-stationary satellite orbits the earth in a very low orbit at an altitude of less than 1,000 miles.

_____ is a network device that serves as an entrance to another network.

Long term evolution is a standard for wireless communications for mobile phones based on ______.

What is the National Do Not Call Registry and how does it work?

_____ is a 4G alternative operated by Clearwire.

_____ is a location where an organization handles customer and other telephone calls, usually with some amount of computer automation.