Exam 6: Communications, Networks, and Cyberthreats: the Wired and Wireless World

The latest version of Wi-Fi (IEEE 802.11 standard)is version a.

A ________ is the set of rules that govern the exchange of data between hardware and / or software components in a communications network.

The ________ is the basis for ALL telecommunications signals.

Which of the following is NOT a way to spread a virus?

Which of the following is NOT a type of wireless communications media?

A cable that is made up of dozens of thin strands of glass and transmits pulsating beams of light is called a coaxial cable.

A modem converts digital signals into analog signals so they can be sent over a telephone line.

Encryption is the process of altering-via software-readable data into unreadable form to prevent unauthorized access.

Satellite transmission uses in-orbit satellites and earth stations.Transmitting from the ground to the satellite is called downlinking,and transmitting from the satellite to the ground station called uplinking.

A _________ is a communications network covering a city or a suburb.

A message sent in its original undisguised,readable form is ________.

Most of the word's natural phenomena use signals that continuously vary in strength and quality,called ________ signals.

The system software that manages the activity of a network is called the ________.

A(n)________ is a system of hardware and / or software that protects a computer or a network from intruders.

What are the main differences between a WAN,a MAN,and a LAN?

The Global Positioning System is an example of a ________-way long-distance communications system.

A botmaster uses malware to hijack hundreds or thousands of computers and controls them remotely; the controlled computers are called ________.

The ________ is a device that converts digital computer signals into analog signals so that they can be sent over a telephone line.

What is the difference between a client / server network and a peer-to-peer network?

Cellphones are basically two-way radios.