Exam 24: Wireless Network Security

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

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

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

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 unit of data exchanged between two peer MAC entities using the services of the physical layer is a(n)____________.

The most significant source of risk in wireless networks in the underlying communications medium.

A ________ is a secret key shared by the AP and a STA and installed in some fashion outside the scope of IEEE 802.11i.

The transmission medium carries the radio waves for data transfer.

An extended service set (ESS)is a set of stations controlled by a single coordination function.

Any device that contains an IEEE 802.11 conformant MAC and physical layer is a basic service set.

An example of a __________ attack is one in which bogus reconfiguration commands are used to affect routers and switches to degrade network performance.

In most data-link control protocols,the data-link protocol entity is responsible not only for detecting errors using the CRC,but for recovering from those errors by retransmitting damaged frames.

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

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

The two services involved with the distribution of messages within a DS are distribution and _________.

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

______ is the recommended technique for wireless network security.

A wireless client can be _______.

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.