Chapter 6

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):
A) hub.
B) switch.
C) router.
D) NIC.

2) 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

3) The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:
A) multiplexing.
B) packet switching.
C) packet routing.
D) ATM.

4) The telephone system is an example of a ________ network.
A) peer-to-peer
B) wireless
C) packet-switched
D) circuit-switched

5) 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.

6) In TCP/IP, IP is responsible for:
A) disassembling and reassembling of packets during transmission.
B) establishing an Internet connection between two computers.
C) moving packets over the network.
D) sequencing the transfer of packets.

7) In a telecommunications network architecture, a protocol is:
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.

8) What are the four layers of the TCP/IP reference model?
A) Physical, application, transport, and network interface
B) Physical,