Exam 4: Computer Networks

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Which of the following is one of the key enhancements of Bluetooth 4.0?

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C

A(n) _________ is an Earth-based device that sends and receives microwave signals. A)microwave station B)microwave hub C)microwave router D)microwave kernel

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microwave station

Identify the correct order in which the boxes in the accompanying figure should be placed to show how TCP/IP works. Identify the correct order in which the boxes in the accompanying figure should be placed to show how TCP/IP works.

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B

Case 4-2 Arnold takes his networking trainer Ron's help to learn about the array of new communications technologies that are being used today. Ron provides various instances and examples that can help Arnold identify different communication protocols and standards. Ron tells Arnold that many mobile WiMAX services have moved to cellular standards such as _____, which is the primary standard for 4G networks today.

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The accompanying figure represents _____. The accompanying figure represents _____.

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One type of wireless networking that does not use signals in the radio frequency (RF) band of the electromagnetic spectrum is _________, which sends data as a form of rays over relatively short distances. A)infrared (IR) transmission B)cellular transmission C)electromagnetic induction D)heterojunction bipolar induction

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The main disadvantage of fiber-optic cabling is _____.

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WiMAX is also referred to as 802.11a.

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Tina wants to control a water heater's operations through her smartphone. She connects the water heater to her smartphone for this purpose. Which of the following networking standards does Tina use to accomplish this?

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Case 4-2 Arnold takes his networking trainer Ron's help to learn about the array of new communications technologies that are being used today. Ron provides various instances and examples that can help Arnold identify different communication protocols and standards. Ron explains to Arnold how the current standards for cellular networks today work in the United States and many other countries. Based on the explanation, which of the following should Arnold do when the 4G usage on his cell phone exceeds the set limit?

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Twisted-pair cabling can be used with both analog and digital data transmission.

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_________, such as those used by the conventional telephone system, represent data with continuous waves. A)Analog signals B)Digital signals C)Ordinal signals D)Cardinal signals

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Paul, the network administrator at Sheroko High School, sets up a local area network (LAN) within the school campus that features star topology. He uses Ethernet, which contains devices that use multiple Ethernet speeds. Which of the following will Paul observe in the network?

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With a(n) _________, a central server is not used. A)peer-to-peer network B)server based network C)client based network D)client server network

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A(n) _________ is an intranet that is at least partially accessible to authorized outsiders. A)extranet B)Internet C)local area network (LAN) D.  metropolitan area network (MAN)

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Identify a method of data transmission used primarily with local area networks (LANs).

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Identify a true statement about piconets.

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Most networking media send data using _____ in which data is represented by only two discrete states: 0s and 1s.

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A public Internet access point at an airport or a coffeehouse is known as a piconet.

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Briefly explain the different types of transmissions with respect to the direction in which transmitted data can move.

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