47.
Which of the following is an example of a wireless communications
medium?
48.
What type of twisted-pair cabling provides a slow, reliable path for
information at up to 10 Mbps?
49.
Which of the following is the most widely used category of twisted-pair
cabling systems for data transfer in today’s LANs?
50.
Which of the following types of cabling has one central wire surrounded by
insulation, a metallic shield, and a final case of insulating material?
51.
Which of the following communications media uses a very thin and flexible
glass or plastic fiber through which pulses of light travel?
52.
Which of the following communications media is a type of radio
transmission?
53.
Which of the following communications devices receives a radio signal,
strengthens it, and then sends it on?
54.
What are repeaters that are located in space called?
55.
_____ means that information can be obtained only by those authorized to
access it.
56.
Which of the following is a threat posed to the authenticity of information
available on a network?
57.
A network failure which makes an e-commerce Web site inaccessible is a
threat to ____.
58.
What software and/or hardware device protects a computer or a network
from intruders?
59.
Which of the following types of network security applications watches the
current network traffic, matching it against lists with characteristics of
known attacks?
60.
_____ is a security technology that encrypts each network conversation—
between one network client and one server—individually.
61.
A(n) _____ uses encryption to protect the confidentiality of all network
transmissions between two endpoints.
62.
Which of the following is NOT a type of malware?
63.
In the context of malware, _____ are programs designed to be controlled by
an attacker to perform unauthorized work over a period of time.
True / False Questions
64.
A computer network consists of a minimum of five computers connected to
one another.
65.
A network interface card (NIC) is an expansion card that connects your
computer to a network and provides the doorway for information to flow in
and out.
66.
An Ethernet card uses a standard telephone jack to connect the computer
to a network.
67.
A wireless access point is a device that allows computers to access a wired
network using radio waves.
68.
A direct link with a satellite is required for setting up a wireless network.
69.
In a small office, a broadband router is often used to connect several
computers to a DSL network.
70.
Information transferred over switches is generally public unless specified by
the host computer.
71.
A switch is a device that connects multiple computers into a network in
which multiple communications links can be in operation simultaneously.