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Computing
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Understanding Computers Today and Tomorrow Study Set 3
Quiz 7: Networks and Communication Devices
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Question 21
True/False
Electronic medical monitors take the vital signs of an individual (such as weight, blood-sugar readings, or blood pressure) or prompt an individual to answer questions. _________________________
Question 22
Multiple Choice
The ____ network consists of 24 Department of Defense satellites that are used for location and navigation purposes.
Question 23
True/False
A(n) ring network uses a central cable to which all network devices connect. _________________________
Question 24
True/False
With telesurgery , at least one of the surgeons performs the operation by controlling the robot remotely over the Internet or another network. _________________________
Question 25
True/False
With a(n) peer-to-peer (P2P) network , a central server is not used. _________________________
Question 26
Multiple Choice
A GPS receiver measures the distance between the receiver and ____ GPS satellites simultaneously to determine the receiver's exact geographic location.
Question 27
True/False
Companies that provide mobile phone services are commonly called wireless providers . _________________________
Question 28
True/False
A(n) small area network (SAN) is a network that covers a relatively small geographical area, such as a home, an office building, or a school. _________________________
Question 29
True/False
The RedStar system built into many GM cars uses GPS to locate vehicles when the occupant activates the service or when sensors indicate that the car was involved in an accident. _________________________
Question 30
True/False
TCP/IP uses packet switching to transmit data. _________________________
Question 31
True/False
Wi-Fi is a wireless standard that was originally designed for very short-range (10 meters, approximately 33 feet, or less) connections. _________________________
Question 32
True/False
A(n) computer network is a collection of computers and other hardware devices connected together so that network users can share hardware, software, and data, as well as communicate with each other electronically. _________________________
Question 33
True/False
With a(n) partial mesh topology , some devices are connected to all other devices, but some are connected only to those devices with which they exchange the most data. _________________________
Question 34
True/False
Most networking media send data using analog signals . _________________________
Question 35
Multiple Choice
There must be 24 GPS satellites in orbit at any given time in order to have at least ____ satellites in view from anywhere on the planet.
Question 36
Multiple Choice
An emerging type of mobile phone is the cellular/satellite ____ phone that can be used with cellular service when it is available and then switches to satellite service when cellular service is not available.