72.
A switch can have hundred or more ports to connect computers.
73.
Home routers that run your Internet connection usually incorporate both a
router and a switch in the same box.
74.
A WAN covers a large geographic distance, such as a state, a country, or
even the entire world.
75.
A MAN covers a contiguous geographic area, such as an office, building, or
a group of buildings in close proximity to each other.
76.
Bandwidth refers to the capacity, or the amount of information, that can be
transferred through a communications line in a given time.
77.
A broadband connection is a high-capacity telecommunications pipeline
capable of providing high-speed Internet service.
78.
A dial-up Internet connection is considered a broadband connection with
high bandwidth.
79.
A telephone modem is a device that connects your computer to your phone
line so that you can access another computer or network.
80.
A DS3 is a dedicated high-speed line which runs on a separate circuit and is
generally used for business connections.
81.
You cannot talk on the telephone and surf the Internet simultaneously while
using a DSL connection.
82.
A modem is not required while using a cable Internet connection.
83.
Wireless communications media transmits information over a closed,
connected path.
84.
Coaxial cable has one central wire surrounded by insulation, a metallic
shield, and a final case of insulating material.
85.
Infrared is a wireless communications medium that uses light waves to
transmit signals or information.
86.
Infrared communications can penetrate walls, buildings, and other
structures.
87.
Bluetooth is a standard for transmitting information in the form of long-
range radio waves.
88.
Wi-Fi is a wireless communication technology that uses red light to send
and receive information.
89.
A repeater is a device that receives a radio signal, strengthens it, and sends
it on.
90.
A firewall consists of both software and/or hardware and protects a
computer or network from intruders.
91.
A virtual private network establishes a dedicated network connection
between two or more networks.
92.
A virtual private network uses encryption to protect the confidentiality of all
network transmissions between two endpoints.
93.
A padlock icon on a Web site tells you that information on the Web site is
being routed through a VPN.
94.
A worm is a type of virus.
Fill in the Blank Questions
95.
A _____ consists of two or more computers connected so that they can
communicate with each other and share information, software, peripheral
devices, and/or processing power.
96.
A _____ must be installed in each computer on the network in order to
connect it to a network.
97.
The most common type of network interface card is a(n) ____.
98.
A _____ cable is a better-constructed version of the phone twisted-pair
cable.
99.
A _____ has a transmitter and a receiver for the bidirectional flow of
information.