In order to attack a wireless network, you put up an access point and override the signal of the real access point. As users send authentication data, you are able to capture it. What kind of attack is this?

Access control is often implemented through the use of MAC address filtering on wireless Access Points. Why is this considered to be a very limited security measure?

While probing an organization you discover that they have a wireless network. From your attempts to connect to the WLAN you determine that they have deployed MAC filtering by using ACL on the access points. What would be the easiest way to circumvent and communicate on the WLAN?

Which of the following wireless technologies can be detected by NetStumbler? (Select all that apply)

Which of the following is true of the wireless Service Set ID (SSID)? (Select all that apply.)

Which of the following is NOT a reason 802.11 WEP encryption is vulnerable?

In an attempt to secure his 802.11b wireless network, Ulf decides to use a strategic antenna positioning. He places the antenna for the access points near the center of the building. For those access points near the outer edge of the building he uses semi-directional antennas that face towards the building’s center. There is a large parking lot and outlying filed surrounding the building that extends out half a mile around the building. Ulf figures that with this and his placement of antennas, his wireless network will be safe from attack.

Which of the following statements is true?

In an attempt to secure his wireless network, Bob turns off broadcasting of the SSID. He concludes that since his access points require the client computer to have the proper SSID, it would prevent others from connecting to the wireless network. Unfortunately unauthorized users are still able to connect to the wireless network.

Why do you think this is possible?

In an attempt to secure his wireless network, Bob implements a VPN to cover the wireless communications. Immediately after the implementation, users begin complaining about how slow the wireless network is. After benchmarking the network’s speed. Bob discovers that throughput has dropped by almost half even though the number of users has remained the same.

Why does this happen in the VPN over wireless implementation?

RC4 is known to be a good stream generator. RC4 is used within the WEP standard on wireless LAN. WEP is known to be insecure even if we are using a stream cipher that is known to be secured.

What is the most likely cause behind this?