1.11 Describe Wireless Principles 200-301 Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A company has a wireless network with WPA2-Enterprise. The helpdesk receives complaints that some users cannot connect after a password change. The users are entering their new password, but authentication fails. What is the most likely cause?

   • AThe users are connecting to a rogue AP with the same SSID.
   • BThe client devices have cached the old credentials and need to forget the network.
   • CThe SSID is hidden, so the users cannot find it.
   • DThe APs are using WPA2-PSK instead of WPA2-Enterprise.
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A network engineer is troubleshooting a wireless network where clients experience low throughput even with a strong signal. The engineer suspects multipath interference. Which action would best confirm this suspicion?

   • ACheck the received signal strength indicator (RSSI) at the client
   • BCheck the channel utilization on the AP
   • CCheck the signal-to-noise ratio (SNR) at the client
   • DCheck the packet error rate (PER) at the client
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A small office has two access points (APs) mounted on opposite ends of a long hallway. Both APs are set to channel 6 on the 2.4 GHz band. Users in the middle of the hallway report intermittent disconnects. Which action would most directly reduce co-channel interference while keeping both APs on the 2.4 GHz band?

   • AChange one AP to channel 1 and the other to channel 11.
   • BSet one AP to channel 3 and the other to channel 9.
   • CChange both APs to channel 1.
   • DIncrease the transmit power on both APs to maximum.
   Reveal Solution Discussion Select an answer first
5. 14expert · medium

   A network administrator is planning a wireless network for a convention center. The center has a large open hall and several meeting rooms. The admin wants to maximize throughput for many clients. Which channel plan is best for the 2.4 GHz band?

   • AUse channels 1, 3, 6, 8, and 11 with 20 MHz widths.
   • BUse channels 1, 6, and 11 with 20 MHz channel widths.
   • CUse channel 6 with 40 MHz width for all APs.
   • DUse only channel 1 for all APs.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A network engineer is comparing 2.4 GHz and 5 GHz bands for a new deployment. The engineer notes that 5 GHz signals do not travel as far as 2.4 GHz signals for the same power level. Which RF principle explains this difference?

   • A5 GHz signals are reflected more by the atmosphere
   • BLower frequency signals have lower wavelength
   • CHigher frequency signals experience more path loss
   • DHigher frequency signals have higher amplitude
   Reveal Solution Discussion Select an answer first