Exam 6: Telecommunications and Networks

Which of the following best describes how star, ring, and bus networks differ?

Network computing is sometimes called a _______________ client/server model, because it consists of thin clients, application servers, and database servers.

Booking a reservation over the Internet costs an airline about 50 percent less than booking the same reservation over the telephone.

The _______________ layer in an OSI model provides communications services for end users.

Which of the following statements best defines a network?

Which of the following best describes a local area network?

IPv4, the current Internet addressing protocol, can accommodate about _______________ addresses.

A change in technology often induces social, political, and economic system changes long before a critical mass of users is reached.

A communications network is any arrangement where a sender transmits a message to a receiver over a _______________, consisting of some type of medium.

All cellular and PCS telephone systems divide a geographic area into small areas, or __________, typically from one to several square miles in area.

Local and global telecommunications networks are rapidly converting to digital transmission technologies. Digital technology provides all of the following benefits over analog technology except:

An intranet is a network inside an organization that uses Internet technologies to provide an Internet-like environment within the enterprise.

Fiber optics are regarded as the communications media of the future, primarily due to its _______________.

IP addressing can identify a particular PC connected to the Internet, but not the network to which it is attached. C. The Class B portion of the address identifies networks.

Voice over IP is a technology that allows a remote worker to function as if he or she were directly connected to a regular telephone network, even while at home or in a remote office.

Telecommunications and network technologies are internetworking and revolutionizing _______________.

Most of the institutions and commercial partners on the Internet2 network are connected via _______________, a network backbone that will soon support throughput of 10 Gbps.

A communications medium that consists of one or more central wires surrounded by thick insulation is called _______________ cable.

The telecommunications industry has changed from a deregulated market to government-regulated monopolies.

PCS phone systems cost substantially more to operate and use than cellular systems, but have lower power consumption requirements.