Exam 24: Wireless Network Security

The MAC service data unit contains any protocol control information needed for the functioning of the MAC protocol.

The fields preceding the MSDU field are referred to as the _________.

The concerns for wireless security,in terms of threats,and countermeasures,are different to those found in a wired environment,such as an Ethernet LAN or a wired wide-area network.

In order to accelerate the introduction of strong security into WLANs the Wi-Fi Alliance promulgated ________,a set of security mechanisms that eliminates most 802.11 security issues,as a Wi-Fi standard.

A __________ attack targets wireless access points that are exposed to non-filtered network traffic,such as routing protocol messages or network management messages.

The field following the MSDU field is referred to as the ___________.

There are two types of keys: ________ used for communication between a STA and an AP and group keys used for multicast communication.

The primary purpose of the MAC layer is to transfer MSDUs between MAC entities.

The association service enables transfer of data between a station on an IEEE 802.11 LAN and a station on an integrated IEEE 802.x LAN.

The final form of the 802.11i standard is referred to as ________.

The MPDU exchange for distributing pairwise keys is known as the _______.

The principal threats to wireless transmission are disruption,_____________,and altering or inserting messages.

A wireless access point is a _______.

The purpose of the authentication phase is to maintain backward compatibility with the IEEE 802.11 state machine.

Company wireless LANs or wireless access points to wired LANs in close proximity may create overlapping transmission ranges.

The function of the ________ layer is to control access to the transmission medium and to provide an orderly and efficient use of that capacity.

At the top level of the group key hierarchy is the ___________.

The 802.11i RSN security specification defines the following services: authentication,privacy with message integrity,and ________.

WPA2 incorporates all of the features of the IEEE 802.11i WLAN security specifications.

The wireless environment consists of three components that provide point of attack: the wireless client,the transmission medium,and the _________.