Deck 3: Networks Network Basics

Question 1

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

A) ​Category 6 cables 
B) ​fiber-optic cables 
C) ​coaxial cables 
D) ​all of the above

Answer 1

  B

Question 2

 Which type of network cover a large geographical area and usually consists of several smaller networks, which might use different computer platforms and network technologies.​ 

A) ​PAN 
B) ​LAN 
C) ​WAN 
D) ​VPN

Answer 2

  C

Question 3

 ________ is the term for transmission capacity of a communication channel.​

Answer 3

  Bandwidth​

Question 4

 A communication _________ is the medium used to transport information from one network device to another.​

Question 5

 In the context of communication networks, the term __________ refers to the structure and layout of network components​

Question 6

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

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

Question 7

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

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

Question 8

 The Internet is the world's largest WAN.​ 

Question 9

 When interference affects a wireless signal, data must be re-transmitted.​ 

Question 10

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

Question 11

 ​Network channels that are capable of moving at least two megabits of data per second are classified as _________ channels.

Question 12

 Microwaves have more carrying capacity than radio waves.​ 

Question 13

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

Question 14

 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.​ 

A) ​PAN 
B) ​LAN 
C) ​WAN 
D) ​VPN

Question 15

 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.​

Question 16

 The bandwidth of a channel that carries digital data is usually measured in ___________.​ 

A) ​bytes per second 
B) ​bits per second 
C) ​Ghz 
D) ​microwaves

Question 17

 Networks can be classified according to their size and geographic scope.​ 

Question 18

 Which type of network topology connects multiple devices to a central device?​ 

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

Question 19

 Wireless connections use licensed frequencies that are available for public use.​ 

Question 20

 Which of the following is an advantage of wired connection?​ 

A) ​more secure 
B) ​more dependable 
C) ​faster speeds 
D) ​all of the above

Question 21

 On a network, which protocol is responsible for dividing files into chunks, adding headers containing information for reassembling packets in their original order, and error checking?​ 

A) ​UDP 
B) ​IP 
C) ​TCP 
D) ​FTP

Question 22

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

A) ​Physical 
B) ​Transport 
C) ​Arrival 
D) ​None of the above

Question 23

 Networks that form the Internet are maintained by who?​ 

A) ​ISPs 
B) ​IXPs 
C) ​ICANN 
D) ​All of the above

Question 24

 Which network tier forms the Internet backbone?​ 

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

Question 25

 A communication ______ is a virtual end point for data entering and leaving a digital device.​

Question 26

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

Question 27

 Which of the following is an example of a DCE?​ 

A) ​router 
B) ​modem 
C) ​hub 
D) ​all of the above

Question 28

 A communication port is a physical circuit through which data flows.​ 

Question 29

 _________ technology divides a message into several packets that can be routed independently to their destination.​ 

A) ​Handshaking 
B) ​Packet switching 
C) ​Packet sniffing 
D) ​circuit switching

Question 30

 The organization that supervises Internet addressing is ___________.​

Question 31

 Networks use more than one protocol, and the collection of protocols for a network is referred to as a protocol ________.​

Question 32

 Two devices on a network negotiate their communication protocols through a process called ___________.​

Question 33

 ​UDP is faster than TCP but does not perform error checking. 

Question 34

 Which DCE would you use if you wanted to extend a wired network by adding more ports?​ 

A) ​Hub 
B) ​Switch 
C) ​Bridge 
D) ​Repeater

Question 35

 The organization that supervises Internet addressing is ARPANET.​ 

Question 36

 Data cannot flow over multiple networks that have different topologies.​ 

Question 37

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

Question 38

 When connecting to the Internet, most Internet users connect to a Tier 1 network.​ 

Question 39

 On a network, any device that stores or generates data is considered to be a(n) _________.​ 

A) ​router 
B) ​DTE 
C) ​DCE 
D) ​ATP

Question 40

 Parcels of data that are sent over a network are called ________.​

Question 41

 A private IP address can be used to send data over the Internet.​ 

Question 42

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

Question 43

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

A) ​DNS 
B) ​HTTP 
C) ​ISPs 
D) ​ICANN

Question 44

 The mechanism for tracking domain names and their corresponding IP addresses is called the ________.​

Question 45

 A Web site cannot be accessed by its domain name until the name is added to the domain name server lists.​ 

Question 46

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

Question 47

 You may be able to bypass DNS outages by changing your DNS server.​ 

Question 48

 When a router connects to and communicates over the Internet, it has a ________ IP address that is routable over the Internet.​

Question 49

 IP addresses can be assigned by a network administrator, but more commonly they are automatically assigned by _________.​

Question 50

 What type of Internet connection do you have when upload speed differs from download speed?​ 

A) ​Dynamic 
B) ​Asymmetric 
C) ​Broadband 
D) ​Symmetric

Question 51

 Internet addresses are controlled by which one of the following protocols?​ 

A) ​TCP 
B) ​IP 
C) ​UDP 
D) ​HTTP

Question 52

 __________ uses 32-bit addresses to uniquely identify devices connected to the Internet.​

Question 53

 Your bandwidth _________ is the top speed allowed by your ISP plan.​

Question 54

 Most Internet connections are symmetrical.​ 

Question 55

 Unauthorized changes to the DNS are called DNS ________.​

Question 56

 Connection speed is technically a measure of capacity.​ 

Question 57

 ________ is utility software designed to measure responsiveness of an Internet connection.​

Question 58

 Internet addresses that are temporarily assigned are called ________ addresses.​

Question 59

 Suppose you wanted to run a Web server or FTP server from your home. What type of IP address would you want?​ 

A) ​Dynamic 
B) ​Static 
C) ​TCP 
D) ​Broadband

Question 60

 Domain name servers maintain lists of all domain names and their corresponding IP addresses.​ 

Question 61

 A Wi-Fi ______ is a wireless local area network that provides Internet access to the public.​

Question 62

 On a network, _______ is the elapsed time for data to make a round-trip from point A to point B and back to point A.​

Question 63

 _______ are designed to provide connectivity for devices within a limited area, typically within the premises of a home, office building, business, or school.​ 

A) ​WANs 
B) ​PANs 
C) ​LANs 
D) ​BANs

Question 64

 _______ is a high-speed, digital, always-on, Internet access technology that runs over standard phone lines.​

Question 65

 The maximum speed of a dial-up connection is _____ Kbps,​

Question 66

 DHCP assigns an IP address to a device and links it to the device's _______ address.​

Question 67

 _______ involves the use of high-capacity fiber-optic cables to connect homes to broader municipal networks.​

Question 68

 LANs use many of the same network technologies as the Internet.​ 

Question 69

 A ______ address is used to uniquely identify devices on LANs.​

Question 70

 ________ is a wired network technology that is defined by IEEE 802.3 standards.​

Question 71

 Most wireless LANs use licensed frequencies that require applying to the FCC for permission.​ 

Question 72

 Packet loss of less than 2% is required for acceptable streaming, gaming, Skype, and voice calls.​ 
a. True 
b. False

Question 73

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

Question 74

 Which type of mobile broadband service has maximum download rates of 300 Mbps and upload rates of 75 Mbps?​ 

A) ​TCP 
B) ​ICANN 
C) ​3G 
D) ​4G

Question 75

 _____________ is a network diagnostic tool that shows you each router and server that your data encounters as it travels over the Internet.​

Question 76

 Mobile broadband can be used to access the Internet from a laptop or desktop computer.​ 

Question 77

 __________ LANs are usually arranged in a star topology with computers wired to central switching circuitry that is incorporated in modern routers.​ 

A) ​Internet 
B) ​Ethernet 
C) ​Wireless 
D) ​Mobile

Question 78

 Which type of broadband Internet access involves using cellular data networks? ​ 

A) ​Fixed 
B) ​Portable 
C) ​Mobile 
D) ​Dial-up

Question 79

 A ________ device transmits data as radio waves and is compatible with Ethernet, so you can use the two technologies in a single network.​

Question 80

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

A) ​Mobile 
B) ​Portable 
C) ​Fixed 
D) ​Wireless