Exam 10: Communications and Networks

COGNITIVE ASSESSMENT Which of the following has a port to which a cable connects in order to coordinate the transmission and receipt of data, instructions, and information to and from the computer or device containing it?

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(n) ____________________ is a network that connects computers and devices in an individual's workspace using wired and wireless technology.

COGNITIVE ASSESSMENT What term is used to describe the time it takes a signal to travel from one location to another on a network?

Data, instructions, and information travel along transmission media in either analog or digital form, depending on the transmission media.

COGNITIVE ASSESSMENT What is the term used to connect a device to a network that has an IP address?

COGNITIVE ASSESSMENT Your new smartphone has a port that enables the transfer of data from one device to another using infrared light waves. What kind of port is this?

Which of the following has the fastest transfer rate?

COGNITIVE ASSESSMENT Network servers and web servers are examples of what type of server?

Which of the following kinds of devices is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device?

COGNITIVE ASSESSMENT Which of the following best describes DSL connections?

Each token ring network has several tokens.

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?

Wi-Fi networks easily can be integrated with wired Ethernet networks.

In a fiber-optic cable, each strand, called an optical fiber, is as thin as a human hair.

Which of the following terms is an electrical disturbance that can degrade communications?

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?

Which of the following defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used?

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

On what kind of network, such as that illustrated in the accompanying figure, do one or more computers act as a server and the other computers on the network request services from the server?