Network Administration
Exam Materials
Course Introduction
Network Administration covers the principles and practices essential for managing computer networks in modern organizations. This course introduces students to network architectures, protocols, and operating systems, emphasizing the configuration, monitoring, and maintenance of local area networks (LANs) and wide area networks (WANs). Learners gain hands-on experience with network devices such as switches, routers, and firewalls, as well as tools for troubleshooting and ensuring security. Key topics include user and resource management, network performance optimization, backup strategies, and disaster recovery planning. By the end of the course, students will be equipped to support reliable, secure, and efficient network operations in various environments.
Recommended Textbook
CWNA Guide to Wireless LANs Networking 2nd Edition by Mark Ciampa
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12 Chapters
504 Verified Questions
504 Flashcards
Source URL: https://quizplus.com/study-set/1032
Page 2
Chapter 1: Its a Wireless World
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/20462
Sample Questions
Q1) An employee who purchases an access point and secretly brings it into the office in order to provide personal wireless access has installed what is known as a ____ access point.
A) rogue
B) hot
C) cold
D) war
Answer: A
Q2) A WAP cell phone runs a tiny browser program called a microbrowser that uses Wireless Markup Language (WML) instead of HTML.
A)True
B)False
Answer: True
Q3) What is the range of transmission for a WPAN?
A) 3 feet
B) 10 feet
C) 14 feet
D) 22 feet
Answer: B
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Page 3
Chapter 2: Wireless LAN Devices and Standards
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) A remote wireless bridge can function in one of four different modes. Describe each mode.
Answer: If a remote wireless bridge is in access point mode it functions as a standard AP only and does not communicate with other remote wireless bridges. In root mode the bridge, called the root bridge, can only communicate with other bridges that are not in root mode. A root bridge cannot communicate with another root bridge or any wireless clients.
If a remote wireless bridge is set to non-root mode, it can only transmit to another bridge in root mode. Some bridge manufacturers enable a remote wireless bridge also to be configured as an access point. This allows the bridge to communicate with a remote wireless root bridge while simultaneously sending and receiving signals with the wireless clients.
In order to extend the distance between LAN segments, another remote wireless bridge may be positioned between two other bridges. This bridge is then in repeater mode.
Q2) Access points are typically mounted on a(n) ____________________ to reduce interference from surrounding objects. Answer: ceiling
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Page 4
Chapter 3: How Wireless Works
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/20464
Sample Questions
Q1) When a digital signal needs to be transmitted over an analog medium, such as when a computer needs to send digital signals over an analog telephone line or TV cable, a device known as a(n) ____ is used.
A) modem
B) translator
C) amplifier
D) phaser
Answer: A
Q2) The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).
A)True
B)False
Answer: True
Q3) A(n) ____________________ is a copper wire or similar device that has one end up in the air and the other end connected to the ground or a grounded device. Answer: antenna
Q4) ____________________ is defined as the positive difference in amplitude between two signals. Answer: Gain
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Chapter 4: IEEE 80211 Physical Layer Standards
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) The ____ field of an 802.11a frame consists of 10 repetitions of a short training sequence signal and two repetitions of a long training sequence signal.
A) Rate
B) Service
C) Synchronization
D) Parity
Q2) Which system is preferred for 802.11b WLANs?
A) DSSS
B) FHSS
C) OFDM
D) All are equally preferred
Q3) What are disadvantages of the 802.11g standard?
Q4) What is the top layer of the OSI reference model?
A) application
B) presentation
C) physical
D) transport
Q5) What is a disadvantage of narrowband transmissions?
Q6) What are the advantages to using DSSS with a chipping code?
Q7) There are two disadvantages to using U-NII. What are they?
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Chapter 5: IEEE 80211 Media Access Control and Network
Layer Standards
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) A BSS is ____.
A) a group of wireless devices that is served by a single access point
B) a unique identifier
C) a geographical area where wireless devices reside
D) two or more networks that are connected through a common distribution system
Q2) Why is CSMA/CD unsuitable for wireless networks?
A) Hidden node problem
B) difficult to detect collisions
C) difficult to synchronize backoff times
D) Both A and B
Q3) On ESS networks that have multiple access points, the wireless device might actually receive beacon frames from several APs. Which AP would a wireless device generally choose in this case?
A) the closest
B) the one with the fewest wireless devices attached to the AP
C) the one with the strongest signal strength
D) the choice will be random
Q4) How does open system authentication work?
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Q5) CSMA/CA reduces collisions is by using explicit frame acknowledgment. Describe how frame acknowledgment works.
Chapter 6: Planning and Deploying a Wireless LAN
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) Wireless access to network resources can improve the quality and productivity of meetings.
A)True
B)False
Q2) Which channels in IEEE 802.11b and 802.11g networks do not overlap?
A) 1, 2, and 3
B) 1, 5, and 8
C) 1, 6, and 11
D) 1, 10, and 20
Q3) What should you do when electrical alternating current power is not available near the AP location?
A) move it to another location
B) use wireless power
C) use a battery
D) user Power over Ethernet
Q4) ____ generates the highest level of interference.
A) Marble
B) Bulletproof glass
C) Paper
D) Metal
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Chapter 7: Conducting a Site Survey
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) 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
Q2) The industry-standard form for site survey documentation is IEEE 802.11D.
A)True
B)False
Q3) What are some of the design goals of a site survey?
Q4) What type of AP antenna is most commonly used in a site survey?
A) omnidirectional
B) semi-directional
C) highly-directional
D) parabolic
Q5) A drawback of spectrum analyzers is that the information is displayed in graphical form and not as raw data.
A)True
B)False
Q6) What special considerations exist for outdoor site surveys?
Page 9
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Chapter 8: Wireless LAN Security and Vulnerabilities
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/20469
Sample Questions
Q1) A wireless DoS attack may involve an attacker sending a series of ____ frames to a wireless device.
A) disassociation
B) drop
C) misaddressed
D) incomplete
Q2) Describe open system authentication.
Q3) MAC address filtering is vulnerable because there are programs available that allow users to ____ a MAC address.
A) spoof
B) break
C) modify
D) disable
Q4) What is a dictionary attack?
Q5) Describe a man-in-the-middle attack.
Q6) In a 64-bit packet sent using WEP, how many bits are actually encrypted?
A) 10
B) 24
C) 40
D) 64
Page 10
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Chapter 9: Implementing Wireless Lan Security
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) Temporal Key Integrity Protocol (TKIP) has three major components to address vulnerabilities. List and describe them.
Q2) The ____ wireless security standard provides a low level of security.
A) Dynamic WEP
B) WEP
C) WEP2
D) All of the above
Q3) ____ was designed to address WEP vulnerabilities with a minimum of inconvenience.
A) IEEE 802.11i
B) TGi
C) dynamic WEP
D) WPA
Q4) The block cipher used in 802.11i is the Data Encryption Standard (DES).
A)True
B)False
Q5) Describe the Temporal Key Integrity Protocol used by Wi-Fi Protected Access (WPA).
Q6) What should a business do if the best possible security model cannot be implemented?
Page 11
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Chapter 10: Managing a Wireless LAN
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/20471
Sample Questions
Q1) What is an RF amplifier?
Q2) There are several factors that may result in RF loss. What are they?
Q3) When creating a functional (working) security policy, there are several elements that should be considered. Describe them.
Q4) In order to use SNMP, a software ____________________ is loaded onto each network device that will be managed using SNMP.
Q5) Information security weaknesses can never be entirely eliminated.
A)True
B)False
Q6) What information is required for a link budget?
A) power of the transmitter
B) path length
C) frequency of the link
D) All of the above
Q7) The first step in creating a security policy is ____.
A) risk assessment
B) security auditing
C) impact analysis
D) documentation
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Chapter 11: Network Settings and Wireless LAN
Troubleshooting
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) The ____________________ access point uses a subnet map to keep track of the home agent information for all visiting client devices.
Q2) How would you solve a near/far transmission problem?
Q3) Devices using ____ may cause all-band interference.
A) Mobile IP
B) WEP
C) frequency hopping spread spectrum
D) IEEE 802.11g
Q4) The MAC Addr field displays the default MAC address for the access point assigned by the manufacturer and cannot be changed.
A)True
B)False
Q5) If the wireless device is configured for DHCP yet no DHCP server is active, then Windows assigns a(n) ____________________ IP Addressing address that begins with the IP range 169.254.x.x.
Q6) 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.
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Chapter
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41 Verified Questions
41 Flashcards
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Sample Questions
Q1) Power consumption is so low for 802.15.4 devices that it is estimated that batteries powering the devices can last up to ____.
A) 4 months
B) 1 year
C) 2 years
D) 5 years
Q2) Describe a geosynchronous earth orbit.
Q3) What is the shape of cells in a cellular telephone network?
A) triangle
B) square
C) circle
D) hexagon
Q4) Free space optics (FSO) transmissions are sent by low-powered ____ beams through the open air.
A) infrared
B) fiber optic
C) RF
D) wireless
Q5) Describe the last mile connection problem.
Q6) What are the two different types of RFID tags? Page 14
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Page 15