[Aug-2021] Verified CWNP Exam Dumps with CWNA-108 Exam Study Guide
Best Quality CWNP CWNA-108 Exam Questions TestsDumps Realistic Practice Exams [2021]
NEW QUESTION 16
What phrase defines Equivalent Isotropically Radiated Power (EIRP)?
- A. The power output from the radio after cable losses
- B. The highest RF signal strength that is transmitted from a given antenna
- C. The power output from the radio into the RF cable
- D. Power supplied from the transmission line to the antenna input
Answer: B
NEW QUESTION 17
A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2x2:2 devices. What is the likely cause of the low data rate issue?
- A. Too few spatial streams
- B. Lack of support for 802.11n
- C. Weak signal strength
- D. CAT5e cabling run to the AP
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 18
The requirements for a WLAN you are installing state that it must support unidirectional delays of less than 150 ms and the signal strength at all receivers can be no lower than -67 dBm. What application is likely used that demands these requirements?
- A. FTP
- B. VoIP
- C. E-Mail
- D. RTLS
Answer: B
NEW QUESTION 19
AP-1 is a 3x3:2 AP. STA-3 is a 3x3:3 client. What is the maximum number of spatial streams that can be used for a downlink HT-OFDM transmission from AP-1 to STA-3?
- A. Two spatial streams, because the definition of the AP indicates that it is capable of only two spatial streams.
- B. One spatial stream, because the definition of the AP indicates that it is capable of only one spatial stream.
- C. Three spatial streams, because the definition of the AP indicates that it is capable of only three spatial streams.
- D. Three spatial streams, because the definition of the client indicates that it is capable of only three spatial streams.
Answer: A
NEW QUESTION 20
What statement about the beamwidth of an RF antenna is true?
- A. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
- B. Vertical beamwidth is displayed (in degrees) on the antenna's Azimuth chart.
- C. When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.
- D. Horizontal and vertical beamwidth are calculated at the points where the main lobe decreases power by 3 dB.
Answer: D
NEW QUESTION 21
You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?
- A. The AP is improperly configured to use only 40 MHz of the 80 MHz allocated bandwidth
- B. All clients implement single spatial stream radios
- C. The short guard interval is also enabled
- D. The clients are all 802.11n STAs or lower
Answer: D
NEW QUESTION 22
In a WALN security, what authentication method always creates Layer2 dynamic encryption keys?
- A. Shared Key
- B. EAP-TLS
- C. WEP
- D. HTTPS captive portal
Answer: C
NEW QUESTION 23
You are managing a wireless access point in autonomous mode using the Web based interface.
You capture traffic during this management task and notice that you can see the HTML code of the Web pages used for access point management. What error in administration could be the cause of this security concern?
- A. WPA2 is disabled on the WLAN
- B. IPSec is not in use for the management connection as recommended
- C. HTTP is in use instead of HTTPS
- D. A VPN with the AP is not established
Answer: C
NEW QUESTION 24
What statement about 802.11 WLAN bridges is true?
- A. WLAN bridges must use a channel with acceptable SNR at both transceivers to maintain the desired data rate bi-directionally
- B. WLAN bridges may support MIMO communication, but only if used in the GHz frequency band
- C. WLAN bridges only work in the 2.4 GHz frequency band and they support only SISO communications
- D. WLAN bridges must be implemented such that no interference occurs on the channel anywhere between the two endpoints used to establish the bridge
Answer: B
NEW QUESTION 25
Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility with both ERP and HR/DSSS?
- A. DSSS (802.11-Prime)
- B. OFDM (802.11a)
- C. VHT (802.11ac)
- D. HT (802.11n)
Answer: D
NEW QUESTION 26
In which plane of the three networking planes is an access point configured by a WLAN controlled?
- A. Control
- B. Security
- C. Management
- D. Data
Answer: C
NEW QUESTION 27
In addition to throughput enhancements, what other improvements does a dual-band 802.11ac AP provide when compared with 802.11a/g APs? (Choose 2)
- A. Better link reliability between 802.11a/b/g client devices and 802.11ac APs
- B. Improves service quality for real-time applications at greater distances
- C. Introduces "fast transition" roaming protocols for VoWiFi phones
- D. Stronger security with more robust encryption modes.
- E. Increases in receive sensitivity enhance RTLS location accuracy
Answer: A,B
NEW QUESTION 28
A standard PoE injector is use to power an access point requiring 802.3at. CAT6 cabling is in use. What is the maximum distance supported between the access point and the Ethernet switch with the use of a midspan power injector?
- A. 300 meters
- B. 200 meters
- C. 328 meters
- D. 100 meters
Answer: D
NEW QUESTION 29
As XYZ Company's wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network's beacon frames are inconsistent. That is, the BSSID is the same for all beacons, but the source address varies between three different addresses.
What network configuration would cause this beacon frame behavior?
- A. Three APs still share the same default configuration.
- B. The beacons are from an IBSS instead of a BSS
- C. A single AP supports multiple BSSs with different SSIDs
- D. A virtual cell single channel network has been implemented
Answer: B
NEW QUESTION 30
What security method is commonly used for VoIP handsets when the infrastructure does not support OKC or FT roaming?
- A. WPA2 -Personal
- B. WPA2-Enterprise with PEAP
- C. WPA2-Enterprise with EAP-TLS
- D. WPA2-Enterprise with EAP-TTLS
Answer: C
NEW QUESTION 31
What terms accurately complete the following sentence?
The IEEE 802.11-2016 standard specifies mandatory support of the _______________ cipher suite for Robust Security Network Associations, and optional use of the ________________ cipher suite, which is designed for use with pre-RSNA hardware and is deprecated.
- A. 802.1X/EAP, WEP
- B. CCMP, TKIP
- C. RC5, RC4
- D. TLS, SSL
Answer: B
NEW QUESTION 32
Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?
- A. DSSS (802.11-Prime)
- B. OFDM (802.11a)
- C. VHT (802.11ac)
- D. HT (802.11n)
Answer: D
NEW QUESTION 33
To ease user complexity, your company has implemented a single SSID for all employees. However, the network administrator needs a way to control the network resources that can be accessed by each employee based in their department.
What WLAN feature would allow the network administrator to accomplish this task?
- A. WPA2
- B. RBAC
- C. WIPS
- D. SNMP
Answer: B
NEW QUESTION 34
What statements about the beamwidth of an RF antenna are true?
- A. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
- B. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases power by 3 dB
- C. When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.
- D. Vertical beamwidth is displayed (in degree) on the antenna's Azimuth chart.
Answer: B
NEW QUESTION 35
Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
- A. 54 Mbps
- B. 130 Mbps
- C. 9 Mbps
- D. 11 Mbps
- E. 65 Mbps
- F. 12 Mbps
Answer: D
NEW QUESTION 36
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. Transmit power
- B. MU-MIMO capabilities of the bridges
- C. Operating frequency
- D. Receive antenna gain
Answer: B
NEW QUESTION 37
What factors are likely to cause the greatest impact on the application layer throughput of an
802.11n client station in a 2.4 GHz HT BSS? (Choose 3)
- A. Increasing or decreasing the number of spatial streams in use by the client station and AP
- B. Use of WEP or TKIP for encryption instead of CCMP
- C. RF interference from more than 10 nearby Bluetooth transmitters
- D. Increasing the beacon interval from 100 to 200 (TUs)
- E. Use of passphrase authentication instead of 802.1X/EAP authentication
Answer: A,B,C
NEW QUESTION 38
What wireless networking term describe the increase of RF energy in an intentional direction with the use of an antenna?
- A. Active Amplification
- B. Beam Digression
- C. Passive Gain
- D. Directed Radiation
Answer: C
NEW QUESTION 39
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