Management Information Systems, Chapter 7 Telecommunications, the Internet, and Wireless Technology

  1. Telephone networks are fundamentally different from computer networks.
  • True
  • False
  1. The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n• hub.
    • NIC.
    • switch.
    • router.
  1. The Internet is based on which three key technologies?
  • TCP/IP, HTML, and HTTP
  • client/server computing, packet switching, and the development of communications standards for linking networks and computers
  • TCP/IP, HTTP, and packet switching
  • client/server computing, packet switching, and HTTP
  1. An NOS must reside on a dedicated server computer in order to manage a network.
  • True
  • False
  1. A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network.
  • True
  • False
  1. The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called
  • packet switching.
  • packet routing.
  1. The telephone system is an example of a ________ network.
  • circuit-switched
  • wireless
  • peer-to-peer
  • packet-switched
  1. In a client/server network, a network server provides every connected client with an address so it can be found by others on the network.
  • True
  • False
  1. A computer network consists of at least three computers.
  • True
  • False
  1. Which of the following is nota characteristic of packet switching?
  • Packet switching requires point-to-point circuits.
  • Packets travel independently of each other.
  • Packets include data for checking transmission errors.
  • Packets are routed through many different paths.
  1. In TCP/IP, IP is responsible for
  • disassembling and reassembling of packets during transmission.
  • moving packets over the network.
  • sequencing the transfer of packets.
  • establishing an Internet connection between two computers.
  1. Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.
  • True
  • False
  1. Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.
  • True
  • False
  1. In a telecommunications network architecture, a protocol is
  • a device that handles the switching of voice and data in a local area network.
  • a communications service for microcomputer users.
  • a standard set of rules and procedures for control of communications in a network.
  • the main computer in a telecommunications network.
  1. What are the four layers of the TCP/IP reference model?
  • physical, application, transport, and network interface
  • application, hardware, Internet, and network interface
  • application, transport, Internet, and network interface
  • physical, application, Internet, and network interface
  1. Over 80% of U.S. Internet users access the Internet via mobile devices.
  • True
  • False
  1. Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
  • True
  • False
  1. Which signal types are represented by a continuous waveform?
  • Analog
  • Optical
  • Laser
  • digital
  1. To use the analog telephone system for sending digital data, you must also use
  • a router.
  • a modem.
  • twisted wire.
  • DSL
  1. Fiber-optic cable is more expensive and harder to install than wire media.
  • True
  • False
  • 09/03/2017
  • 8
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