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Exam 3: Networks Network Basics

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Question 21

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 Which network tier forms the Internet backbone?​ 

A)  ​Tier 1 
B)  ​Tier 2 
C)  ​Tier 3 
D)  ​Tier 4

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Question 22

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 Which type of network topology connects a peripheral device to a host device?​ 

A)  ​Mesh 
B)  ​Star 
C)  ​Bus 
D)  ​Point-to-point

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Question 23

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 Which type of network topology allows for redundant paths between devices that can be used to bypass failed devices?​ 

 In a wireless network, RF signals are sent and received by a ______________.​

 In the context of networks, a communication __________ refers to a set of rules for efficiently transmitting data from one network node to another.​

 DSL is an example of what type of Internet access?​ 

 The most widespread wireless channels for communication networks are microwaves and RF signals.​ 

 Any device in a network is called a(n) __________.​

 What organization is the top-level authority for supervising domain name requests?​ 

 File sharing poses no real security risks.​ 

 Which type of network connects smart devices or consumer electronics within a range of about 30 feet (10 meters) and without the use of wires or cables.​ 

 Which wireless standard is faster: 802.11n or 802.11ac?​

 Wireless connections use unlicensed frequencies that are available for public use, including 2.4 GHz and _____ GHz. which is subject to less interference from other devices, but it has a more limited range.​

 Which type of cables are used for high-capacity trunk lines that provide main routes for telephone, cable, and Internet communications?​ 

 Network _________ enables your computer to see other devices on a network, and whether your computer can be seen by others.​

 Which type of communication protocol converts data into standard formats that can be used by applications?​ 

 __________ specify how shared files can be used.​

 A domain name ends with a(n) ________ that indicates its top-level domain.​

 The circuitry that enables a device to access a LAN is called a(n) ________.​

 __________ uses 128-bit addresses to uniquely identify devices connected to the Internet.​