Applied Network Design
Midterm Exam
Course Introduction
Applied Network Design focuses on the principles and practices required to create efficient, scalable, and secure computer networks for various organizational environments. The course covers foundational concepts such as network topologies, protocols, and technologies, alongside real-world challenges like bandwidth management, redundancy, and fault tolerance. Students will learn to assess business requirements, develop detailed network blueprints, and implement solutions using industry-standard hardware and software. Hands-on labs and case studies provide practical experience in areas such as LAN and WAN design, network virtualization, wireless integration, and security considerations, preparing students to tackle the complexities of modern enterprise networking.
Recommended Textbook
CWNA Guide to Wireless LANs Networking 2nd Edition by Mark Ciampa
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504 Flashcards
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Chapter 1: Its a Wireless World
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Sample Questions
Q1) If an organization's data processing center becomes inoperable, it can move all data processing operations to a ____, often within an hour.
A) recovery location
B) neutral site
C) cold site
D) hot site
Answer: D
Q2) How do airlines use wireless technology to improve aircraft maintenance?
Answer: Some airlines use WLAN technology to communicate with the aircraft once it has parked or is taxiing on the ground. This allows the airline to automatically upload and install software updates for onboard computers or the avionics system before the next flight. Other airlines are using wireless LAN technology for flight maintenance information. Aircraft maintenance personnel with a wireless LAN laptop can have immediate access to an online database that stores important information about each type of aircraft and maintenance procedures. This information is much more current than that found in printed manuals.
Q3) A(n) ____________________ cable connects the AP to a wired LAN or to the Internet.
Answer: patch
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Page 3
Chapter 2: Wireless LAN Devices and Standards
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Sample Questions
Q1) List at least three advantages of standards for wireless technology.
Answer: Standards ensure that devices from one vendor will interoperate with those from other vendors. Devices that are not based on standards may not be able to connect and interoperate with similar devices from other vendors.
Standards create competition. If a vendor creates a new device apart from standards it is called a proprietary device. The vendor owns the specifications and perhaps even a patent on the device. This makes it almost impossible for another manufacturer to produce a similar device. On the other hand, because standards apply to everyone, any vendor can create a device based on a standard.
Competition results in lower costs for consumers and manufacturers. When several vendors make similar products based on the same standards, it is likely that they will also compete on prices. Competition also results in lower costs for manufacturers. Because standards have been established, manufacturers do not have to invest large amounts of capital in research and development. This reduces startup costs as well as the amount of time needed to bring a product to the market. Also, manufacturing to standards encourages manufacturers to deploy mass production techniques and economies of scale to keep production costs low, savings that in turn are passed on to consumers.
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Page 4
Chapter 3: How Wireless Works
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Sample Questions
Q1) What is the difference between an analog and digital signal? Provide an example of each signal type.
Answer: An analog signal is a continuous signal with no "breaks" in it. This means that no individual element of an analog signal can be uniquely identified from another element of the signal. Audio, video, and even light are all examples of analog signals. A digital signal consists of data that is discrete or separate, as opposed to an analog signal, which is continuous. A digital signal has numerous starts and stops throughout the signal stream. Morse code with its series of dots and dashes with space between is an example of a digital signal.
Q2) A(n) ____________________ signal has numerous starts and stops throughout the signal stream.
Answer: digital
Q3) Which of the following is an electromagnetic wave?
A) light
B) heat
C) radio
D) All of the above
Answer: D
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Chapter 4: IEEE 80211 Physical Layer Standards
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Sample Questions
Q1) What is the Open Systems Interconnection (OSI) reference model?
Q2) Increasing the speed of the WLAN will cause shorter delays in waiting for reflections.
A)True
B)False
Q3) What is a disadvantage of narrowband transmissions?
A) requires a complicated algorithm
B) not well regulated
C) expensive to implement
D) interference from another radio signal
Q4) ____ is not part of a frame.
A) Length
B) Parity
C) Channel
D) Data
Q5) The amount of time that a transmission occurs on a specific frequency is called the ____________________ time.
Q6) What are disadvantages of the 802.11g standard?
Q7) The 802.11g standard outlines two mandatory modes along with one optional mode.
Describe each mode.
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Chapter 5: IEEE 80211 Media Access Control and Network
Layer Standards
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Sample Questions
Q1) A(n) ____________________ Service Set is a wireless network that does not use an access point.
Q2) The ____ draft defines a superset of features that is intended to provide QoS over WLANs.
A) 802.11a
B) 802.11b
C) 802.11e
D) 802.11g
Q3) With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.
A) local AP
B) foreign AP
C) foreign agent
D) roamed network
Q4) Describe the three interframe spaces (IFS) defined in the 802.11 standard.
Q5) ____________________ involves dividing the data to be transmitted from one large frame into several smaller ones.
Q6) What fields are contained in the body of a beacon frame?
Q7) Describe Mobile IP.
Q8) How does open system authentication work? Page 7
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Page 8
Chapter 6: Planning and Deploying a Wireless LAN
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Sample Questions
Q1) Intel recommends that once the ROI model is complete, larger organizations should return to step ____.
A) 1
B) 2
C) 3
D) 4
Q2) ____ is considered a hard benefit.
A) Cost reduction
B) Productivity
C) Faster responsiveness
D) Improved employee satisfaction
Q3) According to NOP-World Technology, ____ percent of end users said that a WLAN improves their quality of life by increasing flexibility and productivity, and saving time.
A) 30
B) 56
C) 87
D) 93
Q4) What are the considerations for arranging access points in an ad hoc configuration?
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Page 9
Chapter 7: Conducting a Site Survey
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Sample Questions
Q1) Why is it important to document existing wired and wireless networks?
A) to examine possible sources of interference
B) to ensure that the new or expanded wireless LAN will "dovetail" into what is already in place
C) to avoid providing overlapping network coverage
D) to better understand the basic networking needs of the organization
Q2) What are some of the times at which a site survey should be conducted?
Q3) The ____ setting of a site survey analyzer specifies the AP that will be involved in the test.
A) Destination MAC Address
B) Continuous Link Test
C) Packet Tx Type
D) Delay Between Packets
Q4) What affects the coverage pattern?
A) wireless protocol
B) objects that interfere with the RF signal
C) notebook operating system
D) skill of person conducting site survey
Q5) What is a spectrum analyzer?
Q6) What is a site survey analyzer?
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Chapter 8: Wireless LAN Security and Vulnerabilities
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Sample Questions
Q1) MAC address filtering ____.
A) is difficult to implement
B) requires pre-approved authentication
C) is expensive
D) does not work well
Q2) A standard personal computer can easily create over ____ possible password combinations per second.
A) 100
B) 1,000
C) 1,000,000
D) 1,000,000,000
Q3) While most attacks take advantage of vulnerabilities that someone has already uncovered, a(n) ____________________ attack occurs when an attacker discovers and exploits a previously unknown flaw.
Q4) Briefly describe the goal of InfraGard.
Q5) Describe the five steps in the process of WEP encryption.
Q6) Access ____________________ is intended to guard one of the three CIA characteristics of information, namely the availability of information.
Q7) Describe open system authentication.
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Chapter 9: Implementing Wireless Lan Security
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Q1) Temporal Key Integrity Protocol (TKIP) has three major components to address vulnerabilities. List and describe them.
Q2) Describe the 802.1x authentication procedure.
Q3) The ____________________ security model is designed for single users or small office home office (SOHO) settings of generally 10 or fewer wireless devices.
Q4) What authentication system did the proposed WEP2 standard use?
A) Kerberos
B) AES-CCMP
C) dynamic WEP
D) key caching
Q5) Most consumer access points are in reality wireless ____________________, because they combine the functions of an access point, router, network address translator, firewall, and switch.
Q6) What are the ways in which captive portals are used?
Q7) ____________________ was developed by the Massachusetts Institute of Technology (MIT) and used to verify the identity of network users.
Q8) Describe the Temporal Key Integrity Protocol used by Wi-Fi Protected Access (WPA).
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Chapter 10: Managing a Wireless LAN
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Sample Questions
Q1) Which type of RF loss is caused by the equipment itself, not external objects?
A) Refraction
B) Scattering
C) Voltage Standing Wave Ratio
D) Absorption
Q2) A(n) ____ amplifier boosts the RF signal before it is injected into the device that contains the antenna.
A) bidirectional
B) pre-injection
C) unidirectional
D) internal
Q3) 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
Q4) Describe a sectorized antenna.
Q5) 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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Chapter 11: Network Settings and Wireless LAN
Troubleshooting
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Sample Questions
Q1) When an access point is first turned on or when Mobile IP is first enabled on an access point, it obtains its own home agent information through advertising.
A)True
B)False
Q2) Enabling the ____________________ stops radio transmissions from the access point for the specified number of seconds if the AP detects no activity on the Ethernet line.
Q3) A ten-character ASCII number is found in each frame that indicates the protocol and frame format.
A)True
B)False
Q4) When scanning, the wireless network adapter sends a series of ____________________ frames and the APs within range respond with a Beacon frame that contains the capabilities of the wireless AP, such as the supported speeds, SSID, and security options.
Q5) Describe the LED indicator lights that appear on an AP.
Q6) The ____________________ access point uses a subnet map to keep track of the home agent information for all visiting client devices.
Page 14
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Chapter 12: Personal, Metropolitan, and Wide Area Wireless
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Sample Questions
Q1) The advantage of ____________________ networking systems is that devices configure themselves and are intelligent.
Q2) The ZigBee group has drafted standards relating to network configuration, security, and other higher-level features that are not covered by the IEEE 802.15.4 standard.
A)True
B)False
Q3) In a cellular telephone network all of the transmitters and cell phones operate at a(n) ____________________ power level.
Q4) What type of RFID tag operates at 2.45 GHz?
A) Ultrahigh frequency
B) Microwave
C) High frequency
D) Low frequency
Q5) What is the main drawback of 802.15.1 technology?
A) cost
B) speed
C) reliability
D) All of the above
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