136. LANs, WANs, and MANs all provide users with an accessible and reliable network infrastructure. Which of the below are the most important network differentiating dimensions?
A. reliability and timing
B. confidentiality and performance
C. security and cost
D. cost and performance
137. What is the largest and most important network that has evolved into a global information superhighway?
A. Internet
B. intranet
C. extranet
D. LAN
138. Which of the choices below offers a common example of a LAN?
A. college campus
B. home office
C. city library
D. All of these are correct.
139. Which of the choices below offers an example of a WAN?
A. the Internet
B. Microsoft’s main campus in Washington
C. the city of Denver’s court and police departments
D. All of these are correct.
140. Which of the choices below offers a common example of a WAN?
A. college campus
B. home office
C. city library
D. the Internet
141. Which of the choices below offers an example of a LAN?
A. the Internet
B. Microsoft’s main campus in Washington
C. the city of Denver’s court and police departments
D. college campus
142. Which of the below is a WAN?
A. home office
B. business office
C. college dorm room
D. the Internet
143. What represents the loss of a network signal strength measured in decibels (dB) and occurs because the transmissions gradually dissipate in strength over longer distances or radio interference or physical obstructions like walls impact communication signals?
A. Proxy
B. Broadband over power line
C. Attenuation
D. Repeater
144. What receives and repeats a signal extending its attenuation or range?
A. proxy
B. broadband over power line
C. attenuation
D. repeater
145. What represents the loss of a network signal strength measured in decibels (dB) and occurs because the transmissions gradually dissipate in strength over longer distances or because of radio interference or physical obstructions such as walls?
A. traceroute
B. attenuation
C. repeater
D. packet footer
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