Chapter 7
The WiMax standard can transmit up to a distance of approximately: ! 30 miles. 30 meters. 70 miles. 500 meters. 5 miles.
30 miles.
Which of the following statements about 5G is true? 5G will be able to transmit data in the gigabit range. 5G is built on the foundation of 4G networks. 5G will have longer transmission delays. 5G is not currently being developed by large Internet network providers. 5G will transmit data in the megabyte range.
5G will have longer transmission delays.
Which of the following is the best description of a protocol in a telecommunications network architecture? 1 A pathway through which packets are routed A standard set of rules and procedures for control of communications in a network A communications service for microcomputer users A device that handles the switching of voice and data in a local area network The main computer in a telecommunications network
A standard set of rules and procedures for control of communications in a network
Which signal types are represented by a continuous waveform? Laser Optical Digital RFID Analog
Analog
Which signal types are represented by a continuous waveform? ! Optical Laser Analog RFID Digital
Analog -
The most common web servers today are: ! Netscape Server and Apache HTTP. Apache HTTP Server and Microsoft IIS. WebSTAR and Netscape Server. IBM HTTP Server and Apache HTTP Server. Microsoft IIS and IBM HTTP Server.
Apache HTTP Server and Microsoft IIS. -
What are the four layers of the TCP/IP reference model? ! Application, Hardware, Internet, and Network Interface Physical, Application, Transport, and Network Interface Physical, Application, Internet, and Network Interface Application, Transport, Internet, and Network Interface Software, Hardware, Network Interface, Internet
Application, Transport, Internet, and Network Interface -
Instant messaging is a type of ________ service. ! wireless Chat network email cellular
Chat
The telephone system is an example of a ________ network. ! Circuit-switched packet-switched wireless client/server peer-to-peer
Circuit-switched
The Internet is based on which three key technologies? TCP/IP, HTML, and HTTP Client/server computing, packet switching, and HTTP Client/server computing, packet switching, and the development of communications standards for linking networks and computers TCP/IP, HTTP, and packet switching Email, instant messaging, and newsgroups
Client/server computing, packet switching, and the development of communications standards for linking networks and computers
What service converts natural language names to IP addresses? ! DNS HTML FTP HTTP IP
DNS -
A(n) ________ signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits. ! broadband analog modulated Digital T1
Digital
In TCP/IP, IP is responsible for which of the following? Disassembling and reassembling packets during transmission Sequencing the transfer of packets Establishing an Internet connection between two computers Moving packets over the network Breaking messages down into packets
Disassembling and reassembling packets during transmission
Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication. ! five twenty two Eight fifteen
Eight
Which of the following is not one of the top five search engines? Facebook Microsoft Bing Yahoo Baidu Google
Which digital cellular standard is used widely throughout the world except the United States? GSM 4G LTD CDMA WLAN
GSM
Web browser software requests web pages from the Internet using which of the following protocols? ! FTP HTML HTTP DNS URL
HTTP-
One or more access points positioned on a ceiling, wall, or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as: ! Hotspots. hot points. wireless hubs. netcenters. touch points.
Hotspots. -
Which organization manages the domain name system of the Internet? W3C The Department of Commerce (U.S.) None (no one "owns" the Internet) IAB ICANN
ICANN
Which type of network is used to connect digital devices within a city or metropolitan area? SAN Wi-Fi WAN MAN LAN
LAN
4G networks use which of the following standards? ! LTE and WiMax T-Mobile and AT&T LTE and LTD GSM and LTD CDMA and PAN
LTE and WiMax -
Which of the following is a device that makes possible the translation of digital signals to analog sound signals used by a computer network? DSL TCP/IP Twisted wire Modem Local area network
Modem
Which of the following is not a characteristic of packet switching? ! Packets include data for checking transmission errors. Packets are reassembled into the original message when they reach their destinations. Packet switching requires point-to-point circuits. Packets travel independently of each other. Packets are routed through many different paths.
Packet switching requires point-to-point circuits. -
Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server? ! Peer-to-peer Wireless Windows domain network LAN MAN
Peer-to-peer -
Which type of network would be most appropriate for a business comprised of three employees and a manager located in the same office space, whose primary need is to share documents? ! Domain-based LAN WAN MAN SAN Peer-to-peer network
Peer-to-peer network -
Which of the following statements about RFID is not true? RFIDs transmit only over a short range. RFID tags and antennas come in a variety of shapes and sizes. RFIDs require line-of-sight contact to be read. Microchips embedded in RFIDs are used to store data. RFIDs use an antenna to transmit data.
RFIDs require line-of-sight contact to be read.
Which of the following pulls content from websites and feeds it automatically to users' computers?! FTP Bluetooth RSS IPv6 HTTP
RSS
Which of the following is a device that sends packets of data through different networks assuring they go to the correct address? ? Modem? NIC Hub Router Switch
Router -
Which of the following can be used to help a website achieve a higher ranking with the major search engines? ! IAB SEM RSS SEO VPN
SEO-
________ monetizes the value of the data stored by search engines. ! WiMax IoT RSS Search engine marketing TCP/IP
Search engine marketing
On which of the following protocols is the Internet based? ! HTTP TCP/IP DNS FTP IMAP
TCP/IP-
Which one of the following statements is not true?! The IAB establishes the overall structure of the Internet. The Internet backbone is owned by the federal government in the United States. The Internet must conform to laws where it operates. W3C determines programming standards for the Internet. ICANN manages the domain name system.
The Internet backbone is owned by the federal government in the United States.
Which of the following statements is not true about search engines? ! They have solved the problem of how users instantly find information on the Internet. Users are increasingly using search engines on mobile devices. There are hundreds of search engines vying for user attention, with no clear leader having yet emerged. They are arguably the Internet's "killer app." They are monetized almost exclusively by search engine marketing.
There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
Which process is used to protect transmitted data in a VPN? ! Tunneling Packet-switching VOIP Chaining PPP
Tunneling -
________ integrate disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience.! Unified communications Virtual private networks Modems Intranets Wireless networks
Unified communications -
The 802.11 set of standards is known as: WiMax. WAN. Wi-Fi. WLAN. WSN.
Wi-Fi.
T1 lines: operate over coaxial lines to deliver Internet access. are high-speed, leased data lines providing guaranteed service levels. operate over existing telephone lines to carry voice, data, and video. do not provide guaranteed service levels, but simply "best effort." have up to twenty-four 64-Kbps channels.
are high-speed, leased data lines providing guaranteed service levels.
IPv6 has been developed in order to: allow for different levels of service. create more IP addresses. support Internet2. reduce excess IP addresses. update the packet transmission protocols for higher bandwidth.
create more IP addresses.
Bandwidth is the: number of cycles per second that can be sent through a medium. total number of bytes that can be sent through a medium per second. difference between the highest and lowest frequencies that can be accommodated on a single channel. geographical distance spanned by a network. number of frequencies that can be broadcast through a medium.
difference between the highest and lowest frequencies that can be accommodated on a single channel.
Client/server computing is a: ? ! centralized model of computing for large corporations. network that connects sensors to desktop computers. centralized computing model where local computers are connected to one another by a network. network where centralized mainframe computers serve local devices. distributed computing model where clients are linked to one another through a network that is controlled by a network server computer.
distributed computing model where clients are linked to one another through a network that is controlled by a network server computer. -
Shopping bots use ________ software for searching the Internet. comparison Web 2.0 SEO intelligent agent Web 3.0
intelligent agent
The backbone networks of the Internet are typically owned by long-distance telephone companies called: ! internet bulk providers. enhanced service providers. backbone providers. network service providers. regional network providers.
network service providers.
Digital subscriber lines: operate over existing telephone lines to carry voice, data, and video. are assigned to every computer on the Internet. are very-high-speed data lines typically leased from long-distance telephone companies. have up to twenty-four 64-Kbps channels. operate over coaxial cable lines to deliver Internet access.
operate over existing telephone lines to carry voice, data, and video.-
Predictive search in Google's search engine: ! uses a knowledge graph of what similar people searched on to predict your search interests. uses a tracking service and cookies on your browser to predict search results. predicts what you are looking for as you enter words into the query box. maintains a history of your searches and then predicts what you will search on next. uses a semantic approach to predict what you are looking for.
predicts what you are looking for as you enter words into the query box.
Wireless sensor networks (WSNs) are used for the following tasks except:? processing consumer transactions. monitoring machines. detecting radioactive materials. protecting property. identifying vehicles for trucking firms.
processing consumer transactions
The Internet of Things (IoT) refers to: billions of Internet-connected sensors. the role of computer processors in automobiles. the fact that nearly everyone has some kind of computer today. the idea that nearly everyone in the United States is connected to the Internet. the idea that cars, planes, factories, and government are all connected to the Internet.
the idea that nearly everyone in the United States is connected to the Internet.
The domain .gov is a(n): host domain. network domain. Internet root domain. third level domain. top-level domain.
top-level domain.
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n):! IP address. root domain. child domain. uniform resource locator. third-level domain
uniform resource locator.
A(n) ________ is software for locating and managing stored web pages. modem net server router hub web server
web server
