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

A(n) ____________________ device is a device that initiates an instruction to transmit data, instructions, or information.

A(n) ____________________ line is equal in speed to 28 T1 lines but quite expensive.

COGNITIVE ASSESSMENT What is the definition of a protocol, as it applies to networks?

Most of today's computer networks use coaxial cable.

The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?

Which of the following are radio waves that provide a high-speed signal transmission?

COGNITIVE ASSESSMENT In reference to computer communications, what does the term noise mean?

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

COGNITIVE ASSESSMENT What term describes the process in which two or more computers or devices transfer data, instructions, and information?

The ____________________ standard specifies that computers and devices on the network share or pass a special signal, called a token, in a unidirectional manner and in a preset order.

Some mobile users have a wireless modem that uses a mobile phone provider's network to connect to the Internet wirelessly from a computer or other mobile device.

COGNITIVE ASSESSMENT Which of the following is a 4G standard?

Which of the following terms is the time it takes a signal to travel from one location to another on a network?

COGNITIVE ASSESSMENT What is the approximate distance most Bluetooth devices can be from each other to communicate, without using additional equipment?

A DSL modem converts digital signals to analog signals and vice versa so that data can travel along an analog phone line.

Who invented the Ethernet?

Critical Thinking Questions Case 10-1 You have taken a new job as a network administrator. Although you have been an IT professional within your organization for a number of years, this particular responsibility is a new one for you, so you have been studying network topologies, for example. You are very confident about the hub you are going to use in your new network - it is brand new and highly recommended by some colleagues that you trust. Which of the following network topologies is a good choice for you?

When users log off a P2P network like the one in the accompanying figure, other users still can access their hard disks.

COGNITIVE ASSESSMENT How are standards such as EDI used by businesses?

The fifth generation of cellular transmissions is expected to provide artificial intelligence capabilities on wearable devices.