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Tag: 802.11b

With this error checking, what will be the resulting speed of the wireless networks?

David is the wireless security administrator for Simpson Audio Visual. Davi d was hired on after the company was awarded a contract with 100 airports to install wireless networks. Since these networks will be used by both internal airport employees and visitors to the airports, David decided to go with the de facto standard of 802.11b. Every airport wants to use 802.11b with TCP error checking, even though David has said this will slow down the wireless network connection speeds. With this error checking, what will be the resulting speed of the wireless networks?

What do you think is the reason behind this?

Sandra is conducting a penetration test for pass4sure.com. She knows that pass4sure.com is using wireless networking for some of the offices in the building right down the street. Through social engineering she discovers that they are using 802.11g. Sandra knows that 802.11g uses the same 2.4GHz frequency range as 802.11b. Using NetStumbler and her 802.11b wireless NIC, Sandra drives over to the building to map the wireless networks. However, even though she repositions herself around the building several times, Sandra is not able to detect a single AP.
What do you think is the reason behind this?

Which of the following statements is true?

In an attempt to secure his 802.11b wireless network, Bob decides to use strategic antenna positioning. He places the antennas 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 buildings center. There is a large parking lot and outlying field surrounding the building that extends out half a mile around the building. Bob figures that with this and his placement of antennas, his wireless network will be safe from attack. Which of the following statements is true?