Exam 10: Communications and Networks: Sending and Receiving Digital Content

COGNITIVE ASSESSMENT Which of the following statements best describes a BAN?

With ISDN, the same telephone line that could carry only one computer signal now can carry three or more signals at once through the same line, using a technique called ____________________.

A MAN usually is managed by a consortium of users or by a single network provider that sells the service to the users.

COGNITIVE ASSESSMENT Which of the following technologies is your new wireless headset most likely to use?

With ISDN, the same telephone line that could carry only one computer signal now can carry three or more signals at once through the same line, using a technique called multiplexing.

A star network consists of a single central cable, to which all computers and other devices connect.

Critical Thinking Questions Case 10-2 The area of network communications standards is an area with which you are not familiar, so you have decided to study it in some detail. You expect to have to network a wide range of devices in the near future, so this is a timely subject of study. You are looking for a way to transmit signals through a door, and with a high transfer rate, because you have some video to transfer from a digital video camera. Which of the following protocols is the best bet for you?

Which of the following is not an application of communications satellite technology?

COGNITIVE ASSESSMENT Which of the following is not a technology used by hot spots?

COGNITIVE ASSESSMENT Which of the following has the fastest maximum transfer transmission rate?

An extranet essentially is a small version of the Internet that exists within an organization.

Which of the following can detect problems-such as why traffic is flowing slowly-on networks that use the TCP/IP protocol?

Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?

Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?

Which of the following is the data transfer rate equivalent to one million bits per second?

Discuss fiber-optic cable, including its advantages and disadvantages.

Which of the following kinds of cable consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating?

COGNITIVE ASSESSMENT What is the term for a communications device that connects multiple computers together and transmits data to its correct destination on a network?

COGNITIVE ASSESSMENT What kind of communications device sends and receives data and information to and from a digital line, such as ISDN and cable?

COGNITIVE ASSESSMENT You are purchasing a new mobile phone, and are learning about categories of cellular transmissions. You ask the sales person what the 'G' stands for in the categories 1G, 2G, 3G, and 4G. What does he reply?