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

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

1. Telephone networks are fundamentally different from computer networks.

• True
• False

2. 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.

3. 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

4. An NOS must reside on a dedicated server computer in order to manage a network.

• True
• False

5. 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

6. 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.

7. The telephone system is an example of a ________ network.

• circuit-switched
• wireless
• peer-to-peer
• packet-switched

8. 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

9. A computer network consists of at least three computers.

• True
• False

10. 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.

11. 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.

12. Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.

• True
• False

13. Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.

• True
• False

14. 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.

15. 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

16. Over 80% of U.S. Internet users access the Internet via mobile devices.

• True
• False

17. Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.

• True
• False

18. Which signal types are represented by a continuous waveform?

• Analog
• Optical
• Laser
• digital

19. To use the analog telephone system for sending digital data, you must also use

• a router.
• a modem.
• twisted wire.
• DSL

20. Fiber-optic cable is more expensive and harder to install than wire media.

• True
• False

• Due Date (Double Check): 09/03/2017
• Willing to Pay (USD): 8