True/False
Indicate whether the sentence or statement is true
or false.
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1.
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Almost all WLAN vendors provide utilities to assist in monitoring the wireless
network.
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2.
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Acquiring data, such as error statistics and packets received, from each access point
and each wireless device across the network is normally a quick and easy task.
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3.
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A
wireless network is a static system.
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4.
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Antenna adjustment may require the existing antennas to be reoriented or placed on a
pole or mast for better transmission and reception.
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5.
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Information security weaknesses can never be entirely eliminated.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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6.
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In
the Windows operating system, what window provides basic tools for monitoring a
WLAN? a. | Wireless Adapter
Information | c. | Access Point
Utilities | b. | Wireless Network Connection
Status | d. | Network
Monitor | | | | |
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7.
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It is
important for wireless system administrators to maintain a(n) ____ log that contains a record of all
problems, solutions, and configuration changes. a. | manual | c. | network | b. | event | d. | AP | | | | |
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8.
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What
tool(s) are used most often as “standard” network monitoring tools? a. | AP Monitor and
Simple Network Management Protocol | b. | WLAN Logger and Remote Monitoring | c. | Simple Network
Management Protocol and Remote Monitoring | d. | All of the above | | |
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9.
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The
current version of SNMP (____) addresses security and remote configuration.
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10.
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____
is a nonvolatile storage chip used in computers and other devices. a. | Firmware | c. | RMON | b. | SNMP | d. | EEPROM | | | | |
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11.
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When
updating firmware in an enterprise-level access point, the Receiving AP must be able to hear the IP
____ issued by the Distribution AP. a. | multicast | c. | broadcast | b. | unicast | d. | netcast | | | | |
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12.
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What
is the last step in RF site tuning? a. | adjust channel settings | c. | modify throughput | b. | documenting
changes | d. | validate
coverage area | | | | |
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13.
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What
is another name for propagation loss? a. | transmission loss | c. | free space loss | b. | effective
loss | d. | signal
loss | | | | |
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14.
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What
information is required for a link budget? a. | power of the transmitter | c. | frequency of the link | b. | path
length | d. | All of the
above | | | | |
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15.
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For a
proper WLAN performance, the link budget must be ____ dB. a. | greater than
zero | c. | greater than
ten | b. | greater than
five | d. | less than
ten | | | | |
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16.
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Which
type of RF loss is caused by the equipment itself, not external objects? a. | Refraction | c. | Voltage Standing
Wave Ratio | b. | Scattering | d. | Absorption | | | | |
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17.
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A
____ antenna is most typically used on a WLAN. a. | panel | c. | sectorized | b. | rod | d. | beam
steering | | | | |
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18.
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Most
vendors illustrate their radiation patterns by splitting the three-dimensional donut into two
perpendicular planes called ____ and elevation. a. | donut | c. | plain | b. | horizontal | d. | azimuth | | | | |
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19.
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A(n)
____ amplifier boosts the RF signal before it is injected into the device that contains the
antenna. a. | bidirectional | c. | unidirectional | b. | pre-injection | d. | internal | | | | |
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20.
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____
attenuators are the only type permitted by the FCC for WLAN systems. a. | Variable-loss | c. | Bidirectional | b. | Fixed-loss | d. | Unidirectional | | | | |
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21.
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A
____ limits the amplitude and disturbing interference voltages by channeling them to the
ground. a. | RF
attenuator | c. | lightning
arrestor | b. | splitter | d. | phase modulator | | | | |
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22.
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The
first step in creating a security policy is ____. a. | risk assessment | c. | impact analysis | b. | security
auditing | d. | documentation | | | | |
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23.
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When
conducting a security audit, ____ should determine vulnerabilities. a. | a highly-paid
consultant | b. | a wireless system administrator employed by the
company | c. | a junior administrator | d. | a team with
diverse backgrounds | | |
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24.
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Vulnerabilities that are ranked as ____ are events that would cause the organization
to cease functioning or be seriously crippled in its capacity to perform. a. | major | c. | significant | b. | catastrophic | d. | small impact | | | | |
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25.
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____
security protects the equipment and infrastructure itself, and has one primary goal: to prevent
unauthorized users from reaching the equipment in order to use, steal, or vandalize
it. a. | Physical | c. | Hardware | b. | Practical | d. | Social | | | | |
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26.
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What
technique(s) is/are most effective for defeating social engineering attacks? a. | physical and
software security | b. | documentation | c. | education and
policies | d. | undercover work by network
administrators | | |
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Completion
Complete each sentence or
statement.
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27.
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In
order to use SNMP, a software ____________________ is loaded onto each network device that
will be managed using SNMP.
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28.
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____________________ is software that is embedded into hardware to control the
device.
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29.
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A(n)
____________________ antenna is typically used in outdoor areas. They are designed to be used
in installations where aesthetics and high performance are key factors.
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30.
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The
first step in the security policy cycle is to perform a(n) ____________________, which attempts to
determine the nature of the risks to the organization’s assets.
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31.
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____________________ engineering relies on tricking or deceiving someone to give a
hacker access to a system.
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Matching
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Match each term with the correct statement below. a. | link
budget | f. | RF site
tuning | b. | Remote Monitoring | g. | effective receiving sensibility | c. | beam
steering | h. | software
agent | d. | firmware | i. | attenuator | e. | splitter | | | | |
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32.
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software that is embedded into hardware to control the device
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33.
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device that has a single input connector and multiple output connectors
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34.
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part
of SNMP that monitors network traffic and stores that information in its management information
base
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35.
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rough
calculation of all known elements of the link to determine if the signal will have the proper
strength when it reaches the other end of the link
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36.
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device that decreases the RF signal
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37.
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SNMP-based tool used to monitor LANs that are connected through a wide area
network
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38.
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attempting to readjust the settings of the AP after a firmware upgrade
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39.
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decreases interference by attenuating unwanted sources of interference
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40.
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antenna gain (dBi) less cable loss (dB) at the receiver and receiver sensitivity
(dBm)
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Short Answer
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41.
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Many
enterprise-level access points provide utilities that offer three types of information. What
are they?
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42.
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Although data from the access point and devices can be beneficial, there are drawbacks
to relying solely on these sources of information. What are the drawbacks?
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43.
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What
is Remote Monitoring?
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44.
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List
and describe three RF tuning settings.
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45.
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A
radio frequency link between the sender and receiver consists of three basic elements. What are
they?
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46.
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There
are several factors that may result in RF loss. What are they?
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47.
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Describe a sectorized antenna.
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48.
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What
is an RF amplifier?
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49.
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What
are the factors that should be considered in determining the relative value of assets?
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50.
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When
creating a functional (working) security policy, there are several elements that should be
considered. Describe them.
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