DoS on Wireless Networks GAWN Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A warehouse uses a wireless network to control automated guided vehicles (AGVs). An attacker launches a beacon flood that causes the AGVs to see many fake APs with the same SSID. Some AGVs attempt to connect to the fake APs and fail. What is the most significant impact of this attack on the warehouse operation?

   • ALoss of availability of the AGV control system.
   • BUnauthorized modification of AGV routes.
   • CCorruption of the AGV navigation database.
   • DLoss of confidentiality of the AGV control data.
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A company has experienced repeated deauthentication attacks against its WPA2-Enterprise wireless network. The attacks appear to come from a nearby parking lot. The security team wants to implement a countermeasure that will detect and alert on the attack pattern without disrupting normal operations. Which approach best meets this requirement?

   • AIncrease the beacon interval on all APs to reduce management traffic.
   • BDeploy a wireless intrusion detection system (WIDS) with custom signatures for excessive deauthentication frames.
   • CConfigure the APs to reject all deauthentication frames from unknown MAC addresses.
   • DDisable the SSID broadcast to make the network less visible to attackers.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   Which attack vector for wireless DoS involves transmitting radio-frequency signals to interfere with legitimate wireless communications?

   • ARogue device
   • BJamming
   • CDeauthentication flooding
   • DProtocol manipulation
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A security analyst is investigating reports of intermittent Wi-Fi outages in a warehouse. The analyst captures wireless traffic and sees a high rate of beacon frames from an unknown SSID that is not in the approved list. The beacons are transmitted on the same channel as the warehouse's access points. Which detection technique would most directly confirm that this is a beacon flood attack?

   • ARun a spectrum analyzer to look for non-Wi-Fi interference on the channel.
   • BVerify that the unknown SSID is not broadcasting a hidden network.
   • CCheck the access point logs for failed authentication attempts from unknown clients.
   • DCompare the beacon frame rate against a baseline of normal beacon traffic on that channel.
   Reveal Solution Discussion Select an answer first
6. 25expert · hard

   A security analyst is monitoring a wireless network and notices a sudden increase in deauthentication frames. The analyst wants to determine whether this is an attack or a legitimate network issue. Which approach is most effective?

   • ACheck if the deauthentication frames originate from the access point's MAC address.
   • BImmediately block the source MAC address of the deauthentication frames.
   • CIgnore the increase because deauthentication frames are normal.
   • DRestart the access point to clear the issue.
   Reveal Solution Discussion Select an answer first