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What type of hardware may be necessary when installing APs to be used for outdoor wireless coverage? (Choose all that apply.)
- A . NEMA enclosure
- B . Parabolic dish antennas
- C . Patch antennas
- D . Outdoor ruggedized core switch
Suggested Answer: ACD
Posted : 04/05/2024 3:38 pm
How are IPsec VPNs used to provide security in combination with 802.11 WLANs?
- A . Client-based security on public access WLANs
- B . Point-to-point wireless bridge links
- C . Connectivity across WAN links
- D . All of the above
Suggested Answer: D
Posted : 05/05/2024 1:01 am
Which of the following statements is not true regarding the number of subcarriers in the following channels? (Choose all that apply.)
- A . 40 MHz subcarriers = 2 times 20 MHz subcarriers
- B . 40 MHz subcarriers > 2 times 20 MHz subcarriers
- C . 80 MHz subcarriers = 2 times 40 MHz subcarriers
- D . 80 MHz subcarriers > 2 times 40 MHz subcarriers
- E . 160 MHz subcarriers = 2 times 80 MHz subcarriers
- F . 160 MHz subcarriers > 2 times 80 MHz subcarriers
Suggested Answer: BDE
Posted : 05/05/2024 10:09 am
The basic architecture of any MDM solution consists of:
- A . Mobile Device
- B . AP and WLAN Controller
- C . MDM Server
- D . All of the above
Suggested Answer: D
Posted : 05/05/2024 10:34 am
Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
- A . 9 Mbps
- B . 11 Mbps
- C . 12 Mbps
- D . 54 Mbps
- E . 65 Mbps
- F . 130 Mbps
Suggested Answer: B
Posted : 05/05/2024 12:53 pm
Which of the following are the two most likely causes of roaming problems? (Choose all that apply.)
- A . Not enough secondary coverage
- B . Too much secondary coverage
- C . Co-channel interference
- D . Adjacent cell interference
- E . Hidden node
Suggested Answer: AB
Posted : 05/05/2024 10:36 pm
What CSMA/CA conditions must be met before an 802.11 radio can transmit? (Choose all that apply.)
- A . The NAV timer must be equal to zero.
- B . The random backoff timer must have expired.
- C . The CCA must be idle.
- D . The proper interframe space must have occurred.
- E . The access point must be in PCF mode.
Suggested Answer: ABCD
Posted : 06/05/2024 5:59 pm
What would be needed for multiple basic service sets (BSSs) to exist within the same coverage area of a single access point and in that coverage area, all the client stations would be segmented in separate layer 2 and 3 domains but all communicate within a single layer 1 RF domain? (Choose all that apply.)
- A . Virtual BSSIDs
- B . SSIDs
- C . VLANs
- D . Autonomous APs
- E . None of the above
Suggested Answer: ABC
Posted : 07/05/2024 3:15 am
Which two technologies are used to prevent 802.11 radios from interfering with radar and satellite transmissions at 5 GHz?
- A . Dynamic frequency selection
- B . Enhanced Distributed Channel Access
- C . Direct-sequence spread-spectrum
- D . Temporal Key Integrity Protocol
- E . Transmit power control
Suggested Answer: AE
Posted : 07/05/2024 9:58 am
Which 802.11 service set is defined specifically for directional multi-gigabit (DMG) radios?
- A . BSS
- B . ESS
- C . IBSS
- D . PBSS
- E . MBSS
Suggested Answer: D
Posted : 07/05/2024 2:25 pm
In the 1970’s _______ had a wireless communication model for transmitting between islands.
- A . China
- B . Hawaii
- C . Alaska
- D . Russia
Suggested Answer: B
Posted : 07/05/2024 7:58 pm
Which wireless topology provides citywide wireless coverage?
- A . WMAN
- B . WLAN
- C . WPAN
- D . WAN
- E . WWAN
Suggested Answer: A
Posted : 08/05/2024 5:51 am
Identify some aspects of the Temporal Key Integrity Protocol. (Choose all that apply.)
- A . 128-bit temporal key
- B . 24-bit initialization vector
- C . Message integrity check
- D . 48-bit IV
- E . Diffie-Hellman Exchange
Suggested Answer: ACD
Posted : 08/05/2024 6:15 am
Select the four labels that a WIPS uses to classify an 802.11 device.
- A . Infrastructure
- B . Known
- C . Enabled
- D . Disabled
- E . Rogue
- F . Unknown
Suggested Answer: ABEF
Posted : 08/05/2024 8:53 am
What planes of operation reside in the access points of a distributed WLAN architecture? (Choose all that apply.)
- A . Radio plane
- B . Data plane
- C . Network plane
- D . Control plane
- E . Management plane
Suggested Answer: BD
Posted : 09/05/2024 6:29 am