Exam 24: Wireless Network Security

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

Two types of countermeasures are appropriate to deal with eavesdropping: signal-hiding techniques and ____________.

WPA2 incorporates all of the features of the IEEE 802.11i WLANsecurity specifications.

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

A(n) __________ is any entity that has station functionality and provides access to the distribution system via the wireless medium for associated stations.

A ____________ attack involves persuading a user and an access point to believe that they are talking to each other when in fact the communication is going through an intermediate attacking device.

A wireless access point is a _______.

Like TKIP, CCMP provides two services: message integrity and ________.

The specification of a protocol, along with the chosen key length, is known as a ___.

The smallest building block of a wireless LAN is a ______.

The purpose of the discovery phase is for an STA and an AP torecognize each other, agree on a set of security capabilities, and establish an association for future communication using those security capabilities.

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

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

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

The wireless environment lends itself to a ______ attack because it is so easy for the attacker to direct multiple wireless messages at the target.

The security requirements are: confidentiality, integrity, availability, authenticity, and __________.

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

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.

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

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