The document is a report of the results from a student's quiz on wireless networking. It informs the student that they scored 100% on the quiz. It provides feedback on each question answering format of the quiz without identifying the correct answers, and encourages the student to review the material if they want to improve their score. The report congratulates the student on their perfect score and to print the results for their records.

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2. Wirel
ess
Netwo
rking
quizzes: lesson 1 quiz results
Lesson 1 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. A computer network is best described as which of the following?
You chose: The physical infrastructure that enables the
transmission of data.
Correct! The network is the physical infrastructure that enables the

3. transmission of data.
2. Which of the following is another network that has provided wireless
connectivity?
You chose: The telecommunications network.
Correct! The telecommunications network provided wireless
connectivity by introducing cellular telephones.
3. The term NIC stands for what?
You chose: Network Interface Card.
Correct! NIC stands for Network Interface Card.
4. Which of the following terms refer to the device that provides an access
point for wireless devices?
You chose: WAP.
Correct! WAP stands for Wireless Access Point, and it provides access
for wireless devices.
5. When sending data out from a device, which phrase properly describes
the event?
You chose: Data is being sent down through the network stack.
Correct! When data is sent out from a device, it is being sent down
through the network stack.
Your score: 100% (out of 100%). Excellent job!
Quiz 1

4. Date submitted: 01/23/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution of
any course material without prior written permission is prohibited.

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6. Wirel
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Netwo
rking
quizzes: lesson 2 quiz results
Lesson 2 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Binary consists of how many values?
You chose: Two.
Correct! Binary consists of only two values, 1 and 0.

7. 2. Most wireless networking activity occurs over which portion of the
electromagnetic spectrum?
You chose: The radio frequencies.
Correct! Most wireless networking activity occurs in the radio
frequencies portion of the electromagnetic spectrum.
3. A byte consists of how many bits?
You chose: Eight.
Correct! A byte consists of eight bits.
4. Which of the following is a distance-based measure?
You chose: Wavelength.
Correct! Wavelength is the measure of the length of a complete wave,
and is therefore a distance-based measure.
5. What does the term MODEM stand for?
You chose: Modulator/demodulator.
Correct! The term MODEM stands for modulator/demodulator.
Your score: 100% (out of 100%). Excellent job!
Quiz 2
Date submitted: 01/29/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution

8. of any course material without prior written permission is prohibited.

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10. Wirel
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Netwo
rking
quizzes: lesson 3 quiz results
Lesson 3 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Which of the following is the maximum bandwidth rating for 802.11b?
You chose: 11 Mbps.
Correct! 802.11b has a maximum bandwidth rating of 11 Mbps.

11. 2. Which term describes a standard that has been finalized?
You chose: Ratification.
Correct! Ratification is the term for a finalized standard.
3. Which of the following is the maximum bandwidth rating for 802.11g?
You chose: 54 Mbps.
Correct! 802.11g has a maximum bandwidth rating of 54 Mbps.
4. Which technology is most appropriate for personal area network, or
PAN, devices?
You chose: Bluetooth.
Correct! Bluetooth has characteristics that make it great for personal
area network, or PAN, devices.
5. Which of the following technologies touts the highest bandwidth rating?
You chose: Ultrawideband, or UWB.
Correct! Ultrawideband touts a bandwidth capability of 480 Mbps, which
is by far the highest bandwidth rating of the answers provided.
Your score: 100% (out of 100%). Excellent job!
Quiz 3
Date submitted: 02/04/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution

12. of any course material without prior written permission is prohibited.

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14. Wirel
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Netwo
rking
quizzes: lesson 4 quiz results
Lesson 4 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Which of the following features assigns IP addresses to computers on a
private network?
You chose: Mini-DHCP server.
Correct! A mini-DHCP server assigns IP addresses to computers on a

15. private network.
2. Which of the following is commonly used to provide add-on wireless
networking on laptops?
You chose: PC card.
Correct! PC cards are commonly used to provide add-on wireless
networking for laptops.
3. Edge-of-network means what?
You chose: The device connects directly to the Internet.
Correct! Edge-of-network means the device connects directly to the
Internet, such as a router that is connected to the Internet and to
computers in your private network.
4. Which of the following devices is capable of add-on wireless
networking?
You chose: XBOX 360.
Correct! Xbox is a game console capable of add-on wireless
networking.
5. What feature does a print server provide on a WAP?
You chose: Provides wireless capability for a printer.
Correct! With that wireless printer connectivity, you can connect a
printer to your WAP and then print from any wireless device on the
network, or any other device on the private network.

16. Your score: 100% (out of 100%). Excellent job!
Quiz 4
Date submitted: 02/08/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution
of any course material without prior written permission is prohibited.

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18. Wirel
ess
Netwo
rking
quizzes: lesson 5 quiz results
Lesson 5 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Which of the following specifications defines Wi-Fi?
You chose: 802.11.
Correct! The 802.11 specification standardizes wireless networking,
which is considered Wi-Fi.

19. 2. Which of the following technologies employs profiles to enable various
devices to interoperate?
You chose: Bluetooth.
Correct! Bluetooth uses profiles to interoperate with other devices.
3. SSID means what?
You chose: Service Set Identifier.
Correct! SSID stands for Service Set Identifier.
4. In which of the following technologies would you find a scatternet?
You chose: Bluetooth.
Correct! A scatternet is a collection of two or more interconnected
Bluetooth piconets.
5. Which of the following items must you configure in an ad hoc network?
You chose: Frequency channel.
Correct! All devices in an ad hoc network must be configured to use the
same frequency channel.
Your score: 100% (out of 100%). Excellent job!
Quiz 5
Date submitted: 02/08/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution of
any course material without prior written permission is prohibited.

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21. Wirel
ess
Netwo
rking
quizzes: lesson 6 quiz results
Lesson 6 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Latency is generally expressed in which of the following measurements?
You chose: Milliseconds.
Correct! Latency is generally expressed in milliseconds, which are
1/1000th of a second.
2. Which type of cabling is used for satellite dish installations?

22. You chose: RG-6.
Correct! RG-6, often also referred to as RG-6 quad shield, or simply
quad-shield cable, is capable of transmitting data at up to 2.2 GHz,
which is sufficient for satellite Internet and satellite television.
3. A 2G cellular network is what kind of network?
You chose: Circuit-switched.
Correct! 2G networks are circuit-switched networks.
4. One-way satellite Internet means what?
You chose: Data is received (downloaded) over the satellite
connection.
Correct! In one-way satellite Internet, data is not sent (uploaded) over
the satellite Internet connection.
5. What kind of network is a terrestrial network?
You chose: A network that sends and receives only over land-based
communication lines.
Correct! Terrestrial networks are always land-based only, and as such,
do not transmit data over any satellite links.
Your score: 100% (out of 100%). Excellent job!
Quiz 6
Date submitted: 02/10/2009

23. Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution of
any course material without prior written permission is prohibited.

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25. Wirel
ess
Netwo
rking
quizzes: lesson 7 quiz results
Lesson 7 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. On which planning sheet will you find a drawing of the network plan that
includes wireless-enabled devices?
You chose: Sheet #3.
Correct! Sheet #3 provides a drawing of the network plan after wireless

26. has been added, which includes wireless-enabled devices.
2. Which of the following indicates a wireless link on a network topology
drawing?
You chose: A dashed line.
Correct! Wireless networking connections are indicated by a dashed
line.
3. What is the definition of a logical connection?
You chose: A connection that describes the type of network
connection rather than the physical location of the devices being
connected.
Correct! A logical connection describes the network connection rather
than the physical location of the devices being connected.
4. The Ziddleplat WAP is 802.11g and 802.11b compliant. Which of the
following wireless NICs should they buy to be compliant with both
standards?
You chose: An 802.11g wireless NIC.
Correct! Since both the 802.11b and 802.11g wireless NICs are
compatible with the Ziddleplat WAP, a wireless NIC that is compliant
with 802.11g is also compliant with (and capable of connecting to)
802.11b networks.
5. Your neighbor needs help adding wireless networking to his existing
home network. When you draw the existing network plan, which of the
following devices would you include in that plan?
You chose: Computers connected to the wired LAN.
Correct! The existing network plan includes all computers currently

27. connected to the LAN.
Your score: 100% (out of 100%). Excellent job!
Quiz 7
Date submitted: 02/11/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution of
any course material without prior written permission is prohibited.

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29. Wirel
ess
Netwo
rking
quizzes: lesson 8 quiz results
Lesson 8 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. What is the definition of ESSID?
You chose: Extended Service Set Identifier.
Correct! The definition of ESSID is Extended Service Set Identifier,
which is the network name for a wireless network that consists of more

30. than one WAP.
2. You have a Wi-Fi network with an SSID of SMITH-WIRELESS, and you
add another WAP to extend the reach of wireless. What name should
you use for the SSID of the second WAP?
You chose: SMITH-WIRELESS.
Correct! To extend an existing wireless deployment and provide
seamless connectivity for users, you should use the same SSID on all
WAPs.
3. What is the first task you should complete when installing a new WAP?
You chose: Read the entire installation guide.
Correct! The first task you should complete when installing a new WAP
is to read the entire installation guide.
4. Which of the following is the most common means of obtaining an IP
address from an ISP?
You chose: Dynamic.
Correct! The most common IP address allocation from an ISP is
dynamic.
5. Which of the following is the most common means of administering a
WAP already operating on the network?
You chose: Using a Web browser.
Correct! The most common way to administer a WAP is through a Web
browser.

31. Your score: 100% (out of 100%). Excellent job!
Quiz 8
Date submitted: 02/14/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution
of any course material without prior written permission is prohibited.

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33. Wirel
ess
Netwo
rking
quizzes: lesson 9 quiz results
Lesson 9 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. The OS X operating system is available from which company?
You chose: Apple.
Correct! Apple computer is the maker of the OS X family of operating
systems.

34. 2. The AirPort Extreme wireless card is compatible with which wireless
standard?
You chose: 802.11b.
Correct! The AirPort Extreme card is compatible with 802.11g and
802.11b networks.
3. Which method is used to test Internet connectivity for a newly installed
wireless NIC?
You chose: Open a browser and connect to an Internet Web site.
Correct! Opening a browser and connecting to an Internet Web site is a
perfectly good way of testing Internet connectivity.
4. Which of the following information is provided in the status window of a
wireless network connection?
You chose: Signal strength.
Correct! Signal strength is provided in the status window of a wireless
network connection.
5. Which of the following devices is a WAP?
You chose: Apple AirPort Extreme Base Station.
Correct! The Apple AirPort Extreme Base Station is a WAP
manufactured by Apple, the same folks who created the Macintosh and
the iPod.
Your score: 100% (out of 100%). Excellent job!
Quiz 9
Date submitted: 02/19/2009

35. Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution
of any course material without prior written permission is prohibited.

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37. Wirel
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Netwo
rking
quizzes: lesson 10 quiz results
Lesson 10 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Which of the following Windows versions is best for Bluetooth?
You chose: Windows XP Service Pack 2.
Correct! Windows XP Service Pack 2 provides many enhancements for

38. Bluetooth and is the best version of Windows for Bluetooth.
2. What does synchronization mean for a PDA and a computer?
You chose: Both devices have the same collection of e-mail,
contacts, tasks, and calendar items.
Correct! Synchronization between a PDA and a computer means both
devices have the same collection of e-mail, contacts, tasks, and
calendar items.
3. On the PDA described in this lesson, where are most Bluetooth
configuration settings made?
You chose: Bluetooth manager.
Correct! Most Bluetooth configuration settings are made in the
Bluetooth Manager on a PDA running Windows, such as the PDA
described in this lesson.
4. In an Ad Hoc wireless network, which of the following is necessary?
You chose: Wireless NICs.
Correct! Wireless NICs are used in Ad Hoc wireless networks.
5. What is a service pack?
You chose: A downloadable collection of software patches and
upgrades that Microsoft provides for Windows.
Correct! Microsoft uses service packs to issue collections of updates
and fixes for its products, and they’re almost always free. By lumping
updates into one downloadable service pack, Microsoft makes it easier
for everyone who installs the service pack to get to the same level of
update.

39. Your score: 100% (out of 100%). Excellent job!
Quiz 10
Date submitted: 02/22/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution of
any course material without prior written permission is prohibited.

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41. Wirel
ess
Netwo
rking
quizzes: lesson 11 quiz results
Lesson 11 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. How do you close a wireless network?
You chose: Disable broadcasts.
Correct! A closed wireless network is a network that does not send

42. broadcasts, so disabling broadcasts closes a wireless network.
2. What is meant by MAC filtering?
You chose: Only computers with specified MAC addresses can
connect to the wireless network.
Correct! MAC filtering limits connections to computers or devices that
have specified MAC addresses.
3. Which of the following encryption schemes is least secure?
You chose: WEP.
Correct! WEP encryption has a known flaw and is the least secure
encryption scheme of those listed.
4. In which situation would you want to be especially sure your laptop is
secure from other people on the network?
You chose: Connecting to a hotspot.
Correct! Hotspot networks are potentially dangerous in terms of data
security on the connected computer, since others who connect are
anonymous and on the same LAN as your connection.
5. What does the term IT stand for?
You chose: Information Technology.
Correct! IT does stand for Information Technology.
Your score: 100% (out of 100%). Excellent job!
Quiz 11

43. Date submitted: 02/26/2009
Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution
of any course material without prior written permission is prohibited.

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45. Wirel
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quizzes: lesson 12 quiz results
Lesson 12 Quiz Results
Important: This quiz uses a diminishing multiple choice format. What this means is that if you miss a question, this
evaluation page will explain why the answer you selected was incorrect. The evaluation has been carefully
designed so that it will not identify the correct answer unless you choose that answer yourself. If you want a better
quiz score, you are expected to return to your lesson, review the material, and then take the quiz again.
Please understand that it would be very easy for me to just spoon-feed you the correct answers each time you
miss a question. But if I were to do so, then you would become dependent on me. In the long run, that approach
would do more harm than good.
I want you to leave this class with a solid understanding of this material and the independence to solve your own
problems. This quiz evaluation page has been specifically engineered to fit my teaching philosophy.
Thank you,
-Your Instructor
Evaluation of your answers:
1. Which of the following is a content provider?
You chose: FOX News channel.
Correct! FOX News channel provides television programming and is
therefore considered a content provider.

46. 2. What is an IP phone?
You chose: A phone that uses the data network to transmit voice
calls.
Correct! IP phones use the Internet to send and receive voice calls.
3. Which of the following is a primary reason why wireless networking uses
radio waves?
You chose: They can travel long distances.
Correct! The reason radio frequencies are used for wireless networking
is because they can pass through solid objects, and they can travel long
distances.
4. What does BPL stand for?
You chose: Broadband over Power Lines.
Correct! BPL does, indeed, stand for Broadband over Power Lines.
5. What is a nascent technology?
You chose: An emerging technology.
Correct! Nascent means emerging, and a nascent technology is an
emerging technology.
Your score: 100% (out of 100%). Excellent job!
Quiz 12
Date submitted: 03/01/2009

47. Please print this evaluation for your records.
resources | lessons | quizzes | assignments | discussion | completion
Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution
of any course material without prior written permission is prohibited.