Chapter 6
- In telecommunications networks, the device that allows a single communications channel to carry simultaneous data transmissions from many terminals is called a:
A) Digital signal. B) Hub. C) Multiplexer. D) Bridge.
- Which one of the following statements does not apply to the Internet revolution?
A) The Internet has become the largest and most important network of networks today, and is evolving into the information superhighway of tomorrow.
B) The Internet is constantly getting smaller, as more businesses and other organizations and their users,
Computers, and networks join its global web.
C) The Internet has become a key platform for a rapidly expanding list of information and entertainment
Services and business applications.
D) The Internet has become superhighway of the future.
- Which of the following is the frequency range of a telecommunications channel and determines the channel’s maximum transmission rate?
A) Bandwidth. B) Noise. C) Bytes per second. D) Megahertz per second
- When computing power is distributed and interconnected throughout many organizations by networked computer systems it takes the form of a(n):
A) Client/server network. B) Extranet.
C) Virtual private network. D) Intranet.
- A legacy system is defined as:
A) Traditional mainframe based business information systems.
B) Electronic spreadsheets used on a PC.
C) Computerized account inquiry system for access by customers.
D) Systems found on services.
- Which of the following provide for mobile voice and data communications?
A) Fiber optic B) Twisted pair.
C) Cable modem. D) None of the above
- In a bus network,
A) All computers are connected to a single communications medium over which all communications travel.
B) Network processors are equal and share workloads.
C) Hierarchical network relationships are common in a corporate environment.
D) Peer relationships between network processors provide for backup processing, if needed.
- The communications speed and capacity of telecommunications networks can be classified by ________.
A) Bandwidth. B) Noise. C) Bytes per second. D) Megahertz per second
- Both the computing and communications industries are necessary for computing applications becoming available for business-to-business coordination and electronic commerce.
A) True B) False
- The Internet does not has a strong central telecommunications center nor a central headquarters which acts as the governing body that is responsible to ensure the contents appearing on the Internet have factual content which is acceptable for transmission.
A) True B) False
- Coaxial cable consists of ordinary telephone wire that is constructed with copper wire and twisted into pairs.
A) True B) False
- Business-to-business coordination and commerce is not limited to large organizations. Small organizations have as much of a need as large organizations to participate in such activities.
A) True B) False
- A major industry trend in computing and hardware is toward a greater number of competitive vendors, services, Internet technologies, open systems, and the rapid growth of the Internet, Web, corporate intranets and extranets, drastically decreasing the number of feasible telecommunications applications. A) True B) False
- ______ means moving to smaller computing platforms, such as from mainframe systems to networks of personal computers and servers.
A) Merging B) Downsizing C) Upsizing D) Resizing
- A set of rules and procedures for the control of communications in a communication network is called ___________.
A) Network B) Protocol C) Topology D) Apology
- Which of the following is the earthbound microwave systems that transmit high-speed radio signals in a line-of-sight path between relay stations spaced approximately 30 miles apart?
A) Terrestrial Microwave B) Infrared C) Satellite D) PCS System
- ______________ Is the network inside an organization that uses Internet technologies to provide an Internet-like environment within the enterprise for information sharing, communications, collaboration, and the support of business processes
A) Internet B) Extranet C) Intranet D) Fishing net
- Companies derive business value from their business applications on the Internet. An example of how companies can use the Internet for business includes allowing other businesses to access customer data to reduce competition in the electronic marketplace. A) True B) False
- Your text defines an extranet as an Internet-like network within an organization. Web browser software provides easy access to internal websites, established by business units, teams, and individuals, and other network resources and applications. A) True B) False
- Terminals are one of the basic components that are found in a telecommunications network model. According to your text, a telephone can be classified as a terminal. A) True B) False
0 comments:
Post a Comment