CHAPTER 8 - COMMUNICATION AND NETWORK

One of the most dramatic changes in connectivity and communications in the past few years has been _______. 

• widespread use of mobile devices with wireless Internet connectivity
• chat rooms
• satellite uplinks
• running programs on remote computers

In a communication system, which among the following originate and accept messages in the form of data, information, and/or instructions? 

• Communication channel
• Sending and receiving devices
• Connection devices
• Data transmission specifications

In a communication system, which among the following convert messages into packets that can travel across the communication channel? 

• Connection devices
• Sending and receiving devices
• Storage devices
• Secondary devices

Which physical connection is the fastest? 

• Twisted pair
• Coaxial cable
• Fiber-optic cable
• Microwave

Which among the following is considered a line-of-sight communication medium? 

• Broadcast radio
• Satellite
• Bluetooth
• Microwave

WiMax stands for _______. 

• Wide-area Access for Maximum Reach
• Wide-area Range to Maximize Access
• Worldwide Interoperability for Microwave Access
• Worldwide Access to Maximize Interoperability

Microwave communication uses high-frequency _______. 

• radio waves
• infrared
• satellite communications
• optic fibers

_______ is a term relating to sending data to a satellite.  

• Uplink
• Upload
• Download
• Downlink

The GPS device in an automobile uses which communication channel?  

• Infrared
• Radio Frequency (RF)
• Microwave
• Satellite

A service that uses existing phone lines to provide high-speed connections is called _______. 

• WWAN
• 3G/4G
• Voiceband
• DSL