What 100% Correct CWNA-107 Actual Exam Is

NEW QUESTION 1
An RF sigma sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

• A. Reflection
• B. Refraction
• C. Scattering
• D. Warping

Answer: B

NEW QUESTION 2
What factor will have the most significant impact on the amount of wireless throughput available to each station within a BSS?

• A. The Layer 3 protocol used by each station to transmit data over the wireless link
• B. The number of client stations associated to the BSS
• C. The power management settings in the access point beacons
• D. The presence of co-located (10m away) access points on non-overlapping channels

Answer: B

NEW QUESTION 3
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

• A. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.
• B. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.
• C. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
• D. Legacy Power Save mode was removed in the 802.11ac amendment.

Answer: C

NEW QUESTION 4
When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?

• A. For each probe request frame, only one AP may reply with a probe response.
• B. Each AP responds in turn after preparing a probe response and winning contention.
• C. Each AP checks with the DHCP server to see if it can respond and then acts accordingly.
• D. After waiting a SIFS, all APs reply at the same time with a probe response.

Answer: B

NEW QUESTION 5
What statement about 802.11 WLAN performance is true?

• A. In modem networks, both centralized and distributed data forwarding work well for most standard office deployments
• B. In most WLANs, no special skill or tuning is required to get peak performance
• C. WLANs perform better as more wireless clients connect with each AP
• D. To get the best performance out of an AP, you should disable data rates of 72 Mbps and lower

Answer: D

NEW QUESTION 6
An IEEE 802.11 amendment is in the daft state. What impact does this draft amendment have on the 802.11 standard?

• A. No impact: Until an amendment is ratified, it does not become part of the standard.
• B. Devices will be released based on the draft amendment and the draft amendment features are part of the standard.
• C. The standard is changed to reflect the new capabilities as soon as an amendment enters the draft stage.
• D. No impact: Draft amendments do not become part of the standard until a working group is formed.

Answer: A

NEW QUESTION 7
What statement about 802.11 WLAN performance is true?

• A. In modern networks, both centralized and distributed data forwarding work well for most standard office deployments
• B. In most WLANs, no special skill or tuning is required to get peak performance
• C. WLANs perform better as more wireless clients connect with each AP
• D. To get the best performance out of an AP, you should disable data rates of 72 Mbps and lower

Answer: D

NEW QUESTION 8
As an RF wave propagates through space, the wave front experiences natural expansion that reduces its signal strength in an area. What term describes the rate at which this expansion happens?

• A. Inverse square law
• B. Ohm’s law
• C. Fresnel zone thinning
• D. MU-MIMO

Answer: A

NEW QUESTION 9
Lynne runs a small hotel, and as a value added for his customers he has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. He wants to avoid this problem at his hotel.
What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on his customers’ wireless computers?

• A. Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.
• B. Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.
• C. Enable station-to-station traffic blocking by the access points in the hotel.
• D. Require EAP_FAST authentication and provide customers with a username/password on their receipt.

Answer: B

NEW QUESTION 10
You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2. When you document your findings, what term do you use to describe the problem in this configuration?

• A. Bluetooth interference
• B. Non-Wi-Fi interference
• C. CCI
• D. ACI

Answer: CD

NEW QUESTION 11
You are using a tool that allows you to see signal strength for all Aps in the area with a visual representation. It shows you SSIDs available and the security settings for each SSID. It allows you to filter by frequency band to see only 2.4 GHz networks or only 5 GHz networks. No additional features are available.
What kind of application is described?

• A. Protocol analyzer
• B. Site survey utility
• C. Spectrum analyzer
• D. WLAN scanner tool

Answer: D

NEW QUESTION 12
You are troubleshooting a WLAN problem and you suspect hidden node as the cause. What should you look for in a protocol analyzers?

• A. Frames with the HN bit set to 1
• B. Frames with the retry bit set to 0
• C. Frames transmitted from the AP without acknowledgement
• D. Retransmitted frames from multiple STAs at higher rates than other STAs

Answer: D

Explanation:
Reference http://setup-wireless.blogspot.com/2008/11/wireless-hidden-node.html

NEW QUESTION 13
You are configuring an access point to use channel 128. What important fact should be considered about this channels?

• A. It is a 22 MHz channel so it will overlap with the channels above and below it
• B. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
• C. It is a channel that is unsupported by most access points
• D. It is a channel that likely requires DFS when used

Answer: D

NEW QUESTION 14
Which one of the following is not a factor considered when calculating the Link Budget for an outdoor point-to-point WLAN bridge link?

• A. MU-MIMO capabilities of the bridges
• B. Receive antenna gain
• C. Transmit power
• D. Operating frequency

Answer: A

NEW QUESTION 15
What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?

• A. Directed Radiation
• B. Active Amplification
• C. Passive Gain
• D. Beam Digression

Answer: C

Explanation:
Reference
https://books.google.com.pk/books?id=saC_2j-IwwIC&pg=PA51&lpg=PA51&dq=passive+gain+increase+of+R

NEW QUESTION 16
What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

• A. Power supplied from the transmission line to the antenna input
• B. The power output from the radio after cable losses
• C. The power output from the radio into the RF cable
• D. The highest RF signal strength that is transmitted from a given antenna

Answer: D

NEW QUESTION 17
You administer a WLAN that offers a guest SSID of GUESTNWORK. Users connect to the GUESTNWORK SSID, but report that they cannot browse the Internet. The devices simply report no Internet connection. What common problem causes this scenario?

• A. NTP issues
• B. Hardware issues
• C. IP routing issues
• D. Captive portal issues

Answer: C

NEW QUESTION 18
In WLAN security, what authentication method always creates Layer 2 dynamic encryption keys?

• A. Shared Key
• B. WEP
• C. HTTPS captive portal
• D. EAP-TLS

Answer: B

Explanation:
Reference https://books.google.com.pk/books?id=0ZWLn57EdpsC&pg=PA142&lpg=PA142&dq=WLAN+security,+what

NEW QUESTION 19
You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online

• A. The AP that covers the problem area requires a firmware update
• B. The clients are improperly configured
• C. The AP that covers the problem area has failed
• D. The AP that covers the problem area is improperly configured

Answer: A

NEW QUESTION 20
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