MIS Ch. 6
VoIP technology delivers voice information in digital form using packet switching.
True
A VPN: A. is an encrypted private network configured within a public network. B. is more expensive than a dedicated network. C. provides secure, encrypted communications using Telnet. D. is an Internet-based service for delivering voice communications. E. is a proprietary networking service technology developed by individual corporations.
A. is an encrypted private network configured within a public network.
Digital subscriber lines: A. operate over existing telephone lines to carry voice, data, and video. B. operate over coaxial cable lines to deliver Internet access. C. are very-high-speed data lines typically leased from long-distance telephone companies. D. have up to twenty-four 64-Kbps channels. E. are assigned to every computer on the Internet
A. operate over existing telephone lines to carry voice, data, and video.
Which of the following is the best description of a protocol in a telecommunications network architecture? A. A device that handles the switching of voice and data in a local area network B. A standard set of rules and procedures for control of communications in a network C. A communications service for microcomputer users D. The main computer in a telecommunications network E. A pathway through which packets are routed
B. A standard set of rules and procedures for control of communications in a network
Which type of network is used to connect digital devices within a half-mile or 500-meter radius? A. Wi-Fi B. LAN C. WAN D. MAN E. PAN
B. LAN
In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain? A. books B. azimuth-interactive C. com D. none; there is no second-level domain in this name E. books.azimuth-interactive
B. azimuth-interactive
IPv6 has been developed in order to: A. update the packet transmission protocols for higher bandwidth. B. create more IP addresses. C. allow for different levels of service. D. support Internet2. E. reduce excess IP addresses.
B. create more IP addresses.
The Internet is based on which three key technologies? A. TCP/IP, HTML, and HTTP B. TCP/IP, HTTP, and packet switching C. Client/server computing, packet switching, and the development of communications standards for linking networks and computers D. Client/server computing, packet switching, and HTTP E. E-mail, instant messaging, and newsgroups
C. Client/server computing, packet switching, and the development of communications standards for linking networks and computers
What are the four layers of the TCP/IP reference model? A. Physical, application, transport, and network interface B. Physical, application, Internet, and network interface C. Application, transport, Internet, and network interface D. Application, hardware, Internet, and network interface E. Software, hardware, network interface, Internet
C. Application, transport, Internet, and network interface
Which of the following is not a characteristic of packet switching? A. Packets travel independently of each other. B. Packets are routed through many different paths. C. Packet switching requires point-to-point circuits. D. Packets include data for checking transmission errors. E. Packets are reassembled into the original message when they reach their destinations.
C. Packet switching requires point-to-point circuits.
The most appropriate wireless networking standard for creating PANs is: A. I-mode. B. IEEE 802.11b. C. Wi-Fi. D. Bluetooth. E. RFID.
D. Bluetooth.
What service converts IP addresses into more recognizable alphanumeric names? A. HTML B. FTP C. IP D. HTTP E. DNS
E. DNS
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
True
Fiber-optic cable is more expensive and harder to install than wire media.
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
The Domain Name System (DNS) converts domain names to IP addresses.
True