MIS 352 Chapter 7
Instant messaging is a type of ________ service. chat cellular email wireless network
chat
The telephone system is an example of a ________ network. peer-to-peer wireless packet-switched circuit-switched client/server
circuit-switched
IPv6 has been developed in order to: update the packet transmission protocols for higher bandwidth. create more IP addresses. allow for different levels of service. support Internet2. reduce excess IP addresses.
create more IP addresses.
Bandwidth is the: number of frequencies that can be broadcast through a medium. number of cycles per second that can be sent through a medium. difference between the highest and lowest frequencies that can be accommodated on a single channel. total number of bytes that can be sent through a medium per second. geographical distance spanned by a network.
difference between the highest and lowest frequencies that can be accommodated on a single channel.
A(n) ________ signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits. modulated broadband T1 analog digital
digital
Client/server computing is a: network that connects sensors to desktop computers. network where centralized mainframe computers serve local devices. centralized model of computing for large corporations. distributed computing model where clients are linked to one another through a network that is controlled by a network server computer. centralized computing model where local computers are connected to one another by a network.
distributed computing model where clients are linked to one another through a network that is controlled by a network server computer.
Digital subscriber lines: operate over existing telephone lines to carry voice, data, and video. operate over coaxial cable lines to deliver Internet access. are very-high-speed data lines typically leased from long-distance telephone companies. have up to twenty-four 64-Kbps channels. are assigned to every computer on the Internet.
operate over existing telephone lines to carry voice, data, and video.
Predictive search in Google's search engine: maintains a history of your searches and then predicts what you will search on next. uses a tracking service and cookies on your browser to predict search results. uses a knowledge graph of what similar people searched on to predict your search interests. 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.
predicts what you are looking for as you enter words into the query box.
Computer networks that use packet switching are less efficient than telephone networks that use circuit switching. True False
False
Telephone networks are based on the same principles as computer networks. True False
False
What service converts natural language names to IP addresses? HTML FTP IP HTTP DNS
DNS
On which of the following protocols is the Internet based? TCP/IP FTP IMAP HTTP DNS
TCP/IP
In TCP/IP, IP is responsible for which of the following? Disassembling and reassembling packets during transmission Establishing an Internet connection between two computers Moving packets over the network Sequencing the transfer of packets Breaking messages down into packets
Disassembling and reassembling packets during transmission
Which of the following is the best description of a protocol in a telecommunications network architecture? A device that handles the switching of voice and data in a local area network A standard set of rules and procedures for control of communications in a network A communications service for microcomputer users The main computer in a telecommunications network A pathway through which packets are routed
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
What are the four layers of the TCP/IP reference model? Physical, Application, Transport, and Network Interface Physical, Application, Internet, and Network Interface Application, Transport, Internet, and Network Interface Application, Hardware, Internet, and Network Interface Software, Hardware, Network Interface, Internet
Application, Transport, Internet, and Network Interface
A network that spans a college or corporate facility is called a: CAN. MAN. LAN. WAN. WSN.
CAN.
The Internet is based on which three key technologies? TCP/IP, HTML, and HTTP TCP/IP, HTTP, and packet switching Client/server computing, packet switching, and the development of communications standards for linking networks and computers Client/server computing, packet switching, and HTTP Email, instant messaging, and newsgroups
Client/server computing, packet switching, and the development of communications standards for linking networks and computers
Which of the following is not one of the top five search engines? Facebook Yahoo Microsoft Bing Baidu Google
A NOS must reside on all the local computers in a network. True False
False
Which organization manages the domain name system of the Internet? None (no one "owns" the Internet) W3C ICANN The Department of Commerce (U.S.) IAB
ICANN
Which type of network is used to connect digital devices within a city or metropolitan area? Wi-Fi LAN WAN MAN SAN
MAN
Which of the following is a device that makes possible the translation of digital signals to analog sound signals used by a computer network? Local area network Modem DSL Twisted wire TCP/IP
Modem
Which of the following involves slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations? Multiplexing Packet shifting Packet routing ATM Packet switching
Packet switching
Which of the following is not a characteristic of packet switching? Packets travel independently of each other. Packets are routed through many different paths. Packet switching requires point-to-point circuits. 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.
Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server? MAN Wireless LAN Windows domain network Peer-to-peer
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? MAN Domain-based LAN Peer-to-peer network WAN SAN
Peer-to-peer network
Which of the following is a device that sends packets of data through different networks assuring they go to the correct address? Hub Switch Router NIC Modem
Router
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms. True False
True
A computer network consists of at least two computers. True False
True
A hub is a networking device that sends packets of data to all other devices on the network. True False
True
Bandwidth refers to the range of frequencies that can be transmitted by a telecommunications channel. True False
True
Client/server computing has largely replaced centralized mainframe computing. True False
True
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire. True False
True
Fiber-optic cable is more expensive and harder to install than wireless media. True False
True
In a client/server network, a network server sets the rules of communication for the network. True False
True
In a large company today, you will often find an infrastructure that includes hundreds of small LANs linked to each other as well as to corporate-wide networks. True False
True
TCP/IP was developed during the early 1970s to support efforts to help scientists transmit data among different types of computers over long distances. True False
True
________ integrate disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience. Wireless networks Intranets Virtual private networks Modems Unified communications
Unified communications
T1 lines: operate over existing telephone lines to carry voice, data, and video. operate over coaxial lines to deliver Internet access. 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.
are high-speed, leased data lines providing guaranteed service levels.
In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain? books azimuth-interactive.com com none; there is no second-level domain in this name books.azimuth-interactive
azimuth-interactive.com
The total amount of digital information that can be transmitted through any telecommunications medium is measured in: bps. Hertz. baud. gigaflops. RPMs.
bps.
The domain .gov is a(n): Internet root domain. top-level domain. host domain. network domain. third level domain.
top-level domain.
A network that covers entire geographical regions is most commonly referred to as a(n): local area network. intranet. peer-to-peer network. wide area network. metropolitan area network.
wide area network.
