Deck 7: Networks: Mobile Business

Question 1

The network providers include ISP,NSP,and RSP.

Answer 1

True
Explanation: The network providers include ISP,NSP,and RSP.

Question 2

Network convergence includes VoIP,UC,and IPTV.

Answer 2

True
Explanation: Network convergence includes VoIP,UC,and IPTV.

Question 3

A local area network (LAN)connects a group of computers in close proximity,such as in an office building,school,or home.LANs allow sharing of files,printers,games,and other resources.

Answer 3

True
Explanation: A local area network (LAN)connects a group of computers in close proximity,such as in an office building,school,or home.LANs allow sharing of files,printers,games,and other resources.

Question 4

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

Question 5

Network convergence is the integration of communication channels into a single service.

Question 6

A repeater receives and repeats a signal to reduce its attenuation and extend its range.

Question 7

The network protocols include TCP/IP,FTP,and DHCP.

Question 8

Attenuation represents the loss of a network signal strength measured in decibels (dB)and occurs because the transmissions gradually dissipate in strength over longer distances or because of radio interference or physical obstructions,such as walls.

Question 9

The network categories include LAN,WAN,and MAN.

Question 10

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

Question 11

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

Question 12

A local area network (LAN)is a large computer network usually spanning a city.

Question 13

A metropolitan area network (MAN)is a large computer network usually spanning a city.Most colleges,universities,and large companies that span a campus use an infrastructure supported by a MAN.

Question 14

The network providers include LAN,WAN,and MAN.

Question 15

The network access technologies include DSL,cable modem,and broadband.

Question 16

The network categories include ISP,NSP,and RSP.

Question 17

Network convergence includes TCP/IP and FTP.

Question 18

The network protocols include LAN,WAN,and MAN.

Question 19

The network access technologies include VoIP,UC,and IPTV.

Question 20

A domain name system (DNS)converts IP addresses into domains,or identifying labels that use a variety of recognizable naming conventions.

Question 21

The packet footer represents the end of the packet or transmission end.The packet header and packet footer contain error-checking information to ensure the entire message is sent and received.The receiving device reassembles the individual packets into the original by stripping off the headers and footers and then piecing together the packets in the correct sequence.

Question 22

Packets directly impact network performance and reliability by subdividing an electronic message into smaller more manageable packets.

Question 23

A local area network (LAN)connects a group of computers in close proximity,such as in an office building,school,or home.LANs allow sharing of files,printers,games,and other resources.A LAN also often connects to other LANs,and to wide area networks.

Question 24

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

Question 25

Voice over IP (VoIP)uses IP technology to transmit telephone calls.

Question 26

Telecommuting (virtual workforce)allows users to work from remote locations such as a home or hotel using high-speed Internet to access business applications and data.

Question 27

A repeater represents the loss of a network signal strength measured in decibels and occurs because the transmissions gradually dissipate in strength over longer distances or radio interference or physical obstructions like walls also impact communication signals.

Question 28

Attenuation is a single unit of binary data routed through a network.

Question 29

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

Question 30

Dynamic Host Configuration Protocol (DHCP)allows dynamic IP address allocation so users do not have to have a preconfigured IP address to use the network.

Question 31

Internet Protocol TV (IPTV),which distributes digital video content using IP across the Internet and private IP networks.

Question 32

Peer-to-peer (P2P)is a computer network that relies on the computing power and bandwidth of the participants in the network rather than a centralized server.

Question 33

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

Question 34

The packet header lists the destination (for example in IP packets the destination is the IP address)along with the length of the message data.

Question 35

An IP address is a unique number that identifies where computers are located on the network.

Question 36

A metropolitan area network (MAN)is a large computer network usually spanning a city.

Question 37

Broadband over power line (BPL)technology makes possible high-speed Internet access over ordinary residential electrical lines and offers an alternative to DSL or high-speed cable modems.

Question 38

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

Question 39

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

Question 40

A repeater receives and repeats a signal extending its attenuation or range.

Question 41

An intranet is an extension of an intranet that is available only to authorized outsiders,such as customers,partners,and suppliers.

Question 42

Worldwide Interoperability for Microwave Access (WiMAX)is a communications technology aimed at providing high-speed wireless data over metropolitan area networks.

Question 43

Wireless refers to any type of operation accomplished without the use of a hard-wired connection.

Question 44

Two methods for encrypting network traffic on the Web are secure sockets layer and secure hypertext transfer protocol.

Question 45

A wireless LAN (WLAN)is a means by which portable devices can connect wirelessly to a local area network,using access points that send and receive data via radio waves.

Question 46

Voice over IP is a computer network that relies on the computing power and bandwidth of the participants in the network rather than a centralized server.

Question 47

A repeater distributes digital video content using IP across the Internet and private IP networks.

Question 48

Peer-to-peer uses IP technology to transmit telephone calls.

Question 49

Secure sockets layer (SSL)is a combination of HTTP and SSL to provide encryption and secure identification of an Internet server.

Question 50

The Institute of Electrical and Electronics Engineers (IEEE)is an organization that researches and institutes electrical standards for communication and other technologies.Known officially as IEEE 802.11n (or wireless-N)is the newest standard for wireless networking.Compared with earlier standards like 802.11b,wireless-N offers faster speeds,more flexibility and greater range.

Question 51

An extranet is a restricted network that relies on Internet technologies to provide an Internet-like environment within the company for information sharing,communications,collaboration,Web publishing,and the support of business processes.

Question 52

VPNs are often used to connect to a corporate server.VPN stands for a Valued Partner Network.

Question 53

Companies can establish direct private network links among themselves or create private,secure Internet access,in effect a private tunnel within the Internet,called a virtual private network (VPN).

Question 54

Mobile means the technology can travel with the user; for instance,users can download software,email messages,and Web pages onto a laptop or other mobile device for portable reading or reference.Information collected while on the road can be synchronized with a PC or company server.

Question 55

Companies can establish direct private network links among themselves or create private,secure Internet access,in effect a private tunnel within the Internet,called an extranet.

Question 56

Mobile and wireless networks are identical and the terms can be used synonymously.

Question 57

An intranet is a restricted network that relies on Internet technologies to provide an Internet-like environment within the company for information sharing,communications,collaboration,Web publishing,and the support of business processes.

Question 58

Some of the social challenges with networking occur with newsgroups or blogs where like-minded people can exchange messages.Problems can arise when sensitive social issues become the topic of discussion such as politics or religion.

Question 59

The main challenges facing networks include security,social,ethical and political issues.

Question 60

An extranet is an extension of an intranet that is available only to authorized outsiders,such as customers,partners,and suppliers.

Question 61

Streaming is a method of sending audio and video files over the Internet in such a way that the user can view the file while it is being transferred.

Question 62

An access point (AP)is the computer or network device that serves as an interface between devices and the network.Each computer initially connects to the access point and then to other computers on the network.

Question 63

Wired equivalent privacy (WEP)is an encryption algorithm designed to protect wireless transmission data.

Question 64

Voice over LTE (VoLTE)allows mobile voice calls to be made over broadband networks,creating-under the right network conditions-clearer audio and fewer dropped calls.

Question 65

A wireless WAN (WWAN)is a local area network that uses radio signals to transmit and receive data over distances of a few hundred feet.

Question 66

The digital divide is a wireless PAN technology that transmits signals over short distances among cell phones,computers,and other devices.

Question 67

A secure sockets layer enables devices to connect to a wireless network to communicate with each other.

Question 68

A personal area network (PAN)provides communication for devices owned by a single user that work over a short distance.

Question 69

Wi-Fi infrastructure includes the inner workings of a Wi-Fi service or utility,including the signal transmitters,towers,or poles and additional equipment required to send out a Wi-Fi signal.

Question 70

Bluetooth is a wireless PAN technology that transmits signals over short distances among cell phones,computers,and other devices.

Question 71

A wireless access point (WAP)enables devices to connect to a wireless network to communicate with each other.

Question 72

Wi-Fi protected access (WPA)a wireless security protocol to protect Wi-Fi networks.

Question 73

Hotspots are designated locations where Wi-Fi access points are publicly available.

Question 74

An access point provides communication for devices owned by a single user that work over a short distance.

Question 75

A voice over LTE is the computer or network device that serves as an interface between devices and the network.Each computer initially connects to the access point and then to other computers on the network.

Question 76

A wireless MAN (WMAN)is a metropolitan area network that uses radio signals to transmit and receive data.

Question 77

A wireless LAN (WLAN)is a local area network that uses radio signals to transmit and receive data over distances of a few hundred feet.

Question 78

A wireless WAN (WWAN)is a wide area network that uses radio signals to transmit and receive data.

Question 79

A satellite is a space station that orbits the earth,receiving and transmitting signals from earth-based stations over a wide area.

Question 80

Worldwide Interoperability for Microwave Access (WiMAX),a communications technology aimed at providing high-speed wireless data over metropolitan area networks.