Title: Lesson 10: Quiz
Course: RITA MC - ITNW 1308 > Section: Lesson 10: Configuring Network Settings

Q: What type of attack is occurring when attackers are replaying data packets on a wireless network?
- Eavesdropping
- Masquerading
- Data tampering
- Denial of service
A: Data tampering
Feedback: Data tampering attacks come in many types. Attackers can delete, replay, or modify wireless communications with a man-in-the-middle attack. A man-in-the-middle attack is when an intruder intercepts network communications and modifies the contents of the packets before sending them on to their destination.

Q: A 2x2 MIMO device has how many total transceivers?
- Two
- Four
- One
- Eight
A: Four
Feedback: IEEE 802.11n equipment increases wireless networking speeds by using multiple transmitter and receiver antennae on each device in a process called multiple-input multiple-output (MIMO). For example, a device using a 2x2 MIMO format has two transmitters and two receivers, operating at different frequencies.

Q: The original WPA implementation utilized what encryption method?
- AES
- AES-CBC
- CCMP
- TKIP
A: TKIP
Feedback: Implemented in the original WPA standard, TKIP encrypts data using the RC4 algorithm with a 128-bit key. This is the same algorithm as WEP, but TKIP virtually eliminates WEPs most exploited vulnerability by using a unique encryption key for each packet.

Q: 802.11n wireless networking equipment uses two, three, or more different frequencies for transmission and the subsequent receiving of traffic. The sending system splits its data into multiple signals for transmission, and the receiving device reassembles the signals into a single data stream. What is the name of this process?
- Frequency multiplexing
- Spatial multiplexing
- Time-distance multiplexing
- Bandwidth aggregation
A: Spatial multiplexing
Feedback: IEEE 802.11n equipment increases wireless networking speeds by using multiple transmitter and receiver antennae on each device in a process called multiple-input multiple-output (MIMO). For example, a device using a 2x2 MIMO format has two transmitters and two receivers, operating at different frequencies. The sending system splits its data into two signals for transmission, and the receiving device reassembles the signals into a single data stream. This process is called spatial multiplexing.

Q: The 802.11n wireless networking protocol specifies what approximate values for indoor and outdoor range?
- ~35 meters, ~110 meters
- ~70 meters, ~250 meters
- ~70 meters, ~110 meters
- ~30 meters, ~100 meters
A: ~70 meters, ~250 meters
Feedback: 802.11n specifies an approximate indoor range of 70 meters and an approximate outdoor range of 250 meters. Actual range will vary from deployment to deployment based on many factors.

Q: Why should you not deploy a wireless network using WEP for security?
- WEP does not support the high speed available in 802.11g and 802.11n.
- WEP does not support older operating systems such as Windows XP.
- WEP is insecure due to very weak cryptographic protocols.
- WEP must be licensed and a fee paid to IEEE for every device using it.
A: WEP is insecure due to very weak cryptographic protocols.
Feedback: The cryptography used by WEP is relatively weak, and programs that can analyze captured traffic and derive the key from it are readily available. These factors have resulted in WEP becoming one of the most frequently cracked network encryption protocols today.

Q: What command can you issue from the command line to view all configured wireless networks on your Windows 8.1 computer?
- netsh connections show profiles
- wlan profiles list
- netsh wlan show profiles
- ntdsutil networks show profiles
A: netsh wlan show profiles
Feedback: To view all wireless profiles currently stored on your computer, from a command prompt, type the following and then press Enter: netsh wlan show profiles.

Q: Within the Windows UI, what option will you need to select to delete a wireless network profile?
- Clear this network
- Delete this network
- Disconnect from this network
- Forget this network
A: Forget this network
Feedback: If the network is in range, you can click the wireless network icon in your task tray, right-click the network you want to remove from the list, and then choose Forget this network. This option works well for situations where you connected to a wireless network to perform a one-time task and do not want to automatically connect to it the next time you are within range, or if the settings have changed on the wireless access point. When using this option, Windows 8.1 removes the wireless network and erases the wireless profile from its internal database.

Q: Location-aware printing utilizes what two services to determine network information and the current location of the Windows 8.1 computer? (Choose two.)
- Print Spooler service
- Network Location Awareness service
- Line Printer Daemon service
- Network List Service
A: Network Location Awareness service; Network List Service
Feedback: Location-aware printing depends upon the Network Location Awareness service and the Network List Service to determine network information. The Network Location Awareness service collects and stores configuration information for the networks and notifies programs when the information is changed. The Network List Service identifies the networks to which the computer is connected. If either of these services are not running or they are malfunctioning, Windows 8.1 is not able to detect changes in networks and cannot adjust the default printer accordingly.

Q: What type of attack is occurring when attackers gain access to otherwise restricted network resources, using a wireless network?
- Eavesdropping
- Masquerading
- Data tampering
- Denial of service
A: Masquerading
Feedback: When Masquerading occurs, attackers might be able to gain access to restricted network resources by impersonating authorized wireless users. This enables the attacker to engage in illegal activities or attack hosts on remote networks while disguised with another identity.