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Exam : CENP PW0-300
Title : Certified Wireless Network Expert

1. Given: An ingress frame arrives on the Ethernet port of an autonomous AP marked with an IEEE 801D user priority value.
Which IEEE 802.1D user priority values (by name) will assure the data payload carried by the Ethernet frame gets assigned to the highest priority WMM queue?
A. Controlled Load
B. Network Control
C. Video
D. Voice
E. Best Effort
F. Excellent Effort
Answer: BD

2. When using a protocol analyzer to capture conversations over a WLAN, you may often encounter encrypted data frames. Most WLAN protocol analyzers have a feature that allows the analyst to save and reload the captured frames into memory at a later time. Using this functionality, what task can be performed?
A. When IEEE 802.1X/LEAP is being used as the WLAN security mechanism, the authentication response frame can be replayed from a saved trace file at a later time to successfully authenticate a hacker.
B. If a user name and password for an IEEE 802.1X/EAP-TTLS security implementation can be obtained through social engineering tactics, the user name and password can be entered into the analyzer to decrypt the frames from a saved trace file.
C. An analyst can search through the captured frames looking for RADIUS frames that will disclose the user’s password.
D. Encrypted frames may be decrypted offline, after they are captured, by entering a WEP key or WPA passphrase into the analyzer.
Answer: D

3. A QoS STA obtains a TXOP for an access category (AC) after what two parameters are met?
A. After a scheduled service period ends
B. The medium is idle at the AIFS[AC] slot boundary
C. The backoff time for that AC has expired
D. After a Block ACK Response
E. After a Target Beacon Transmission Time (TBTT)
Answer: BC

4. Given: When the delayed Block Ack policy is used between two QoS STAs, the recipient must respond to a BlockAckReq frame with an ACK frame. The recipient must then send its BlockAck response frame in a subsequently obtained TXOP.
Once the contents of the BlockAck frame have been prepared, the recipient must _______________.
A. Send the BlockAck response frame to the originator in the earliest possible TXOP using the highest priority AC.
B. Send an ATIM to the originator signifying that the BlockAck response frame is ready for transmission.
C. Include the TID of the BlockAckReq in the next TXOP Request to the HC.
D. Wait for one PIFS after the next Beacon and transmit the BlockAck response to the originator using the same AC as the BlockAckReq frame.
Answer: A

5. In a Split MAC wireless network architecture, lightweight APs map user priorities (UPs) specified by the QoS STA on incoming frames to ___________.
A. IEEE 802.1D Frame Precedence Values
B. GRE Priority Bits
C. IEEE 802.1Q Tag Protocol Identifiers
D. IP Differentiated Services Code Points
E. QoS Control Header Values
Answer: D

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Exam : CENP PW0-200
Title : Certified Wireless Security Professional(CWSP)

1. What WIPS parameter is configured to generate notifications?
A. Mobile unit density violations
B. Admission control status
C. Sensor sensitivity levels
D. Policy threshold values
Answer: D

2. Given: ABC Company has a WLAN controller with three access points15 client devicesand uses WPA2-Personal for WLAN security.
What statement about ABC Company’s WLAN security is true?
A. Intruders may obtain the passphrase with an offline dictionary attack and gain network accessbut will be unable to decrypt data traffic.
B. Traffic injection attacks are possible because the transmitter lacks frame numbering.
C. An unauthorized wireless client device cannot associatebut can eavesdrop on some data because WPA2-Personal does not encrypt broadcast traffic.
D. An authorized WLAN user with a protocol analyzer can decode data frames of other authorized users if he captures that user’s 4-Way Handshake.
E. Because WPA2-Personal uses Open System authentication followed by a 4-Way Handshakehijacking attacks are easily performed.
Answer: D

3. What happens in a bit flipping attack against an IEEE 802.11 device?
A. An attacker captures an encrypted framemodifies the ciphertextmodifies the ICV to hide the change to the ciphertextand then transmits the frame to appear as if it is from the original source.
B. An attacker uses a non-linear Message Integrity Check (MIC) on his computer to form a wireless crossover connection with the target computer.
C. An attacker injects data into a wireless transmission that results in a memory access exception at the target system for the purpose of breaching security.
D. An attacker sends each frame with the first bit alternating between 0 and 1causing the target computer to disable encryption synchronization.
E. An attacker captures an encrypted authentication frameand then executes a cracking algorithm against each 0 and 1 in the frame. After the frame is crackedit is used to authenticate the attacker’s computer.
Answer: A

4. What policies would prevent peer-to-peer attacks against wireless-enabled corporate laptop computers when the laptops are also used on public access networks such as wireless hotspots?
A. Require managed personal firewall software on each laptop.
B. Require secure applications such as POP3/SHTTPSand SSH2.
C. Require VPN software for connectivity to the corporate network.
D. Require WPA2-Enterprise as the minimal WLAN security solution.
E. Require Port Address Translation (PAT) on each laptop.
F. Require a managed wireless endpoint security agent on each laptop.
Answer: ABCF

5. Given: You have a laptop computer with an integrated Wi-Fi compliant MiniPCI card.
What statements describe the limited effectiveness of locating rogue access points using WLAN discovery software such as NetStumblerKismetor MacStumbler?
A. Discovery tools like those listed cannot determine the authorization status of an access point.
B. A laptop computer can only be in one location at a time.
C. Discovery tools like those listed cannot determine if an access point is attached to a wired network.
D. Rogue access points using non-IEEE 802.11 frequency bands or unpopular modulations are not detected.
E. When data encryption in useaccess points cannot be detected using discovery tools like those listed.
Answer: ABCD

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Exam : CWNP PW0-104
Title : Wireless LAN Administration Exam

1. What word describes the bending of an RF signal as it passes between mediums of different density?
A. Diffraction
B. Reflection
C. Refraction
D. Diffusion
E. Scattering
Answer: C

2. What causes an excessively high Voltage Standing Wave Ratio (VSWR) in an 8011 WLAN?
A. An impedance mismatch between devices in series with the main RF signal
B. Reflected DC voltage on the main RF signal line
C. Refracted RF signal peaks along the main signal path
D. Crosstalk (inductance) between adjacent conductors
Answer: A

3. Given: ABC Company’s network administrator was just asked to install a 5 GHz OFDM bridge link between two buildings. He connected a WLAN bridge with a 50-ohm output to a 50-ohm RF coaxial cable. He connected the other end of the RF coaxial cable to a 25-ohm, 6 dBi Yagi antenna.
What is the maximum VSWR between the WLAN bridge and the Yagi antenna?
A. 1.0:1
B. 1.1:1
C. 1.2:1
D. 1.5:1
E. 2.0:1
F. 1.0:2
Answer: E

4. As an RF wave propagates through space, the wave front experiences natural expansion. What is the detrimental effect of this expansion in a WLAN system?
A. Linear Diffusion Loss
B. Signal Attenuation
C. Transmission Obfuscation
D. Fresnel Zone Thinning
E. Azimuth Inflation
Answer: B

5. What factors affect the distance that an RF signal can be effectively received?
A. Transmitting station’s antenna type
B. Receiving station’s radio sensitivity
C. Fresnel zone blockage
D. Power over Ethernet (PoE) usage
E. Antenna connector type
F. Distance between access points
Answer: ABC

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