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Exam 7: Networks: Mobile Business

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Question 41

Multiple Choice

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What is a WLAN that uses Wi-Fi and has a built-in security mechanism that uses a wireless security protocol to protect Wi-Fi networks?

A) WEP
B) Wi-Fi protected access
C) War chalking
D) War driving

E) A) and D)
F) C) and D)

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Question 42

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A wide area network (WAN)spans a large geographic area such as a state,province,or country.Perhaps the best example is the Internet.

A) True
B) False

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Question 43

Multiple Choice

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Passive RFID tags do not have a power source.

___________ packet formats include a packet header,packet body containing the original message,and packet footer.

_____________ service providers (NSPs),private companies that own and maintain the worldwide backbone that supports the Internet.These include Sprint,Verizon,MCI (previously UUNet/WorldCom),AT&T,NTT,Level3,Century Link,and Cable & Wireless Worldwide.

Which of the below is experiencing rapid growth due to wireless technology?

Radio-frequency identification (RFID)uses electronic tags and labels to identify objects wirelessly over short distances.

What is a space station that orbits the Earth receiving and transmitting signals from Earth-based stations over a wide area?

What is VoIP?

The U.S.Department of Defense developed this technology in the early 1970s,a global ____________ system where satellite-based navigation systems provide extremely accurate position,time,and speed information.

A ___________ area network connects a group of computers in close proximity,such as in an office building,school,or home.

IP address is a simple network protocol that allows the transfer of files between two computers on the Internet.

Dynamic host configuration protocol is a utility application that monitors the network path of packet data sent to a remote computer.

The speed of transmission of a network is determined by the speed of its smallest ______________.

A local area network (LAN)spans a large geographic area such as a state,province,or country.

A __________ is software that prevents direct communication between a sending and receiving computer and is used to monitor packets for security reasons.

Explain the five different networking elements creating a connected world.

A proxy is software that prevents direct communication between a sending and receiving computer and is used to monitor packets for security reasons.

Which of the following is a measure being considered to address privacy concerns with RFIDs and LBSs?

RFID reader (RFID interrogator)is a transmitter/receiver that reads the contents of RFID tags in the area.A RFID system is comprised of one or more RFID tags,one or more RFID readers,two or more antennas.