Deck 7: Networks: Mobile Business

Question 1

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

Answer 1

False
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 2

The network providers include ISP, NSP, and RSP.

Answer 2

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

Question 3

The network categories include ISP, NSP, and RSP.

Answer 3

False
The network categories include LAN, WAN, and MAN.

Question 4

The network providers include LAN, WAN, and MAN.

Question 5

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 6

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 7

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

Question 8

The network protocols include LAN, WAN, and MAN.

Question 9

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

Question 10

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

Question 11

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

Question 12

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

Question 13

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

Question 14

Network convergence includes VoIP, UC, and IPTV.

Question 15

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

Question 16

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

Question 17

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 18

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

Question 19

Network convergence includes TCP/IP and FTP.

Question 20

The network categories include LAN, WAN, and MAN.

Question 21

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 22

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 23

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

Question 24

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 25

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 26

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

Question 27

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

Question 28

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

Question 29

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

Question 30

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 31

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 32

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 33

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

Question 34

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

Question 35

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 36

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

Question 37

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

Question 38

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

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

Question 41

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

Question 42

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

Question 43

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

Question 44

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 45

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 46

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 47

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

Question 48

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

Question 49

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 50

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 51

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

Question 52

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 53

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

Question 54

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

Question 55

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

Question 56

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

Question 57

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 58

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

Question 59

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 60

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 61

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

Question 62

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 63

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 64

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 65

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

Question 66

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

Question 67

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

Question 68

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

Question 69

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

Question 70

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 71

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

Question 72

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

Question 73

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

Question 74

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 75

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

Question 76

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

Question 77

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

Question 78

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 79

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

Question 80

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.