Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA) ISE Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Why was WPA2 introduced as a replacement for WPA?

   • ABecause WPA could not support enterprise authentication
   • BBecause WPA was too complex for home users
   • CBecause TKIP still had vulnerabilities and was based on the aging RC4 cipher
   • DBecause WPA was proprietary and not widely supported
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A network administrator is troubleshooting a WPA network that uses TKIP. The administrator notices that the access point periodically disables the network for 60 seconds, causing all clients to disconnect. The administrator suspects an attack. Which action should the administrator take to mitigate the impact of this behavior?

   • ADisable the MIC countermeasure feature on the access point
   • BIncrease the MIC failure threshold to allow more failures before the network is disabled
   • CChange the WPA passphrase to a longer, more complex one
   • DSwitch the network from TKIP to AES-CCMP if all devices support it
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A historian is documenting the evolution of Wi-Fi security. The historian notes that WEP was designed to provide confidentiality comparable to a wired network. However, WEP was later found to have fundamental flaws. Which statement accurately describes the historical context of WEP?

   • AWEP was designed to replace WPA, but it was quickly abandoned due to performance issues.
   • BWEP was a proprietary protocol developed by a single vendor and never standardized.
   • CWEP was introduced as the first security protocol for 802.11 networks, but its use of RC4 with a short IV and static keys made it vulnerable to practical attacks.
   • DWEP used AES encryption, which was later found to be weak against brute-force attacks.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   An administrator is configuring a legacy WEP network for a small office. The administrator wants to use an authentication method that does not reveal any information about the WEP key to a passive eavesdropper. Which authentication method should the administrator choose?

   • AOpen System authentication
   • B802.1X with RADIUS
   • CWPA-Personal with a pre-shared key
   • DShared Key authentication
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   How are WEP keys typically configured and shared among devices on a network?

   • AThey are generated dynamically for each session using Diffie-Hellman
   • BThey are automatically distributed using a central authentication server
   • CThey are manually entered as a passphrase or hex key on each device
   • DThey are broadcast to all devices in the beacon frame
   Reveal Solution Discussion Select an answer first