Deck 3: Network Basics

Question 1

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

Answer 1

False

Question 2

The most widespread wireless channel for communication networks is radio frequency (RF) signals.

Answer 2

True

Question 3

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

Answer 3

A

Question 4

Microwaves have more carrying capacity than radio waves.

Question 5

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

Question 6

Network channels that are capable of moving at least 25 megabits of data per second are classified as _________ channels.

Question 7

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

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

Question 8

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

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

Question 9

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

Question 10

Which type of network covers 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

Question 11

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

Question 12

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

Question 13

When interference affects a wireless signal, data must be retransmitted.

Question 14

Which type of cable is 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

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

Which of the following is an advantage of wired connections?

A) More secure
B) More dependable
C) Faster speeds
D) All of the above

Question 17

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 (personal area network)
B) LAN (local area network)
C) WAN (wide area network)
D) VPN (virtual private network)

Question 18

The Internet is the world's largest WAN.

Question 19

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 20

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

Question 21

The organization that supervises Internet addressing is ___________.

Question 22

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

Question 23

Which of the following is an example of a DCE?

A) Router
B) Modem
C) Hub
D) All of the above

Question 24

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 25

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 (File Transfer Protocol)

Question 26

Data cannot flow over multiple networks that have different topologies.

Question 27

Networks that form the Internet are maintained by ____________.

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

Question 28

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

Question 29

Which network tier forms the Internet backbone?

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

Question 30

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 31

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

A) router
B) DTE (data terminal equipment)
C) DCE (data communications equipment)
D) ATP (advanced threat protection)

Question 32

The organization that supervises Internet addressing is ARPANET.

Question 33

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

Question 34

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

Question 35

_________ 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 36

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

Question 37

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

Question 38

UDP (User Datagram Protocol) is faster than TCP (Transmission Control Protocol) but does not perform error checking.

Question 39

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

Question 40

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

Question 41

Unauthorized changes to the DNS are called DNS ________.

Question 42

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

Question 43

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 44

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

Question 45

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

A) DNS
B) HTTP
C) ISPs (Internet service providers)
D) ICANN (Internet Corporation for Assigned Names and Numbers)

Question 46

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

Question 47

Internet addresses that are temporarily assigned are called ________ addresses.

Question 48

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

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

Question 49

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

Question 50

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

Question 51

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

Question 52

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

Question 53

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

A) TCP
B) IP
C) UDP
D) HTTP (Hypertext Transfer Protocol)

Question 54

Connection speed is technically a measure of capacity.

Question 55

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

Question 56

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

Question 57

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

Question 58

IP addresses can be assigned by a network administrator, but more commonly they are automatically assigned by _________. (Hint: Use the acronym.)

Question 59

Most Internet connections are symmetrical.

Question 60

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

Question 61

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

Question 62

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

Question 63

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 64

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

Question 65

Most wireless LANs use licensed frequencies that require applying to the Federal Communications Commission (FCC) for permission.

Question 66

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

Question 67

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

Question 68

DSL is an example of what type of Internet access?

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

Question 69

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

Question 70

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

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

Question 71

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

Question 72

__________ 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 73

A(n) ______ address is used to uniquely identify devices on LANs.

Question 74

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

Question 75

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

Question 76

Packet loss of less than 2% is required for acceptable streaming, gaming, Skype, and voice calls.

Question 77

_______ 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 78

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

Question 79

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 80

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