Wireless Network Security Exam Questions with Correct Answers

What is the frequency and maximum data rate for 802.11a? Correct Answer 5GHz 54Mbps When an AP is set to not broadcast SSIDs beacons continue; but have a null value for the SSID. Correct Answer True Which one of the following points a lightweight access point to one or more controllers? Correct Answer DHCP option 43 If an access point does not advertise its SSID the clients must know the SSID to join the wireless network. Correct Answer True When roaming between APs the client is disconnected from the wireless network and then automatically reconnected. Correct Answer False Which of the following signals does the Long Term Evolution (LTE) standard use? Correct Answer Orthogonal Frequency Division Multiplexing (OFDM) Disabling broadcast of SSID prevents a client from transmitting the SSID in a beacon frame. Correct Answer False Which of the 11 2.4GHz channels are recommended for use in the U.S.? Correct Answer 1, 6, 11 To create an ESSID network all APs must use the same SSID and the access points must be able to reach each other on the wired link. Correct Answer True Which of the following is a wireless security best practice? Correct Answer SSIDs should not be broadcast and APs should not respond to null probes with SSIDs What is the IEEE standard for Bluetooth? Correct Answer 802.15 Choose 2 reasons why WEP was an easy encryption system to defeat. Correct Answer 1. Plaintext and encrypted keys were both passed in the open. 2. the key value was too short (only 40 bits) When multiple APs are present the client selects an AP based on: Correct Answer Received Signal Strength Indicator What is the frequency and maximum data rate for 802.11n? Correct Answer 2.4 and 5 GHz 600 Mbps