Module04_-_deck_1

What is a wireless wide area network (WWAN)?

A WWAN covers broad geographical boundaries and uses wireless mediums instead of wired mediums, typically utilizing cellular technologies.

What standard defines wireless metropolitan area networks (WMAN)?

The 802.16 standard, often referred to as Worldwide Interoperability for Microwave Access (WiMAX).

What is the main purpose of a wireless local area network (WLAN)?

To provide wireless networking for a building or campus environment.

What component is referred to by the 802.11 standard as a station (STA)?

The radio in an 802.11 wireless network.

What is the difference between an access point (AP) station and a client station?

An AP station functions as a wireless portal for communication, while a client station does not include portal functionality.

Define the term 'Service Set Identifier (SSID)'.

The SSID is a logical name used to identify an 802.11 wireless network, similar to a Windows workgroup name.

What does BSS stand for in wireless networking?

Basic Service Set, representing the cornerstone topology of an 802.11 network, consisting of one AP and one or more client stations.

What is a basic service area (BSA)?

The physical coverage area provided by an access point in a BSS.

What is a basic service set identifier (BSSID)?

The MAC address of an access point’s radio, serving as the layer 2 identifier of each individual BSS.

What is an extended service set (ESS)?

A topology consisting of two or more identically configured BSSs connected by a distribution system medium.

What is the logical network name of an ESS?

Extended Service Set Identifier (ESSID), which is synonymous with SSID.

What is the difference between ad hoc mode and infrastructure mode for client stations?

Infrastructure mode allows communication via an access point, while ad hoc mode allows participation in an IBSS without an access point.

What is the purpose of the mesh basic service set (MBSS)?

To provide wireless distribution of network traffic using a set of access points.

What does QoS stand for in 802.11 service sets?

Quality of Service, which can be implemented within all of the 802.11 service sets.

What are the common operation modes for an access point?

Root mode, mesh mode, sensor mode, bridge mode, workgroup bridge mode, and AP as a client mode.

What is the role of the PBSS control point (PCP)?

To coordinate medium contention among clients in a personal basic service set.

Define Wireless Distribution System (WDS).

A system that allows access points to function in a mesh deployment to provide coverage and backhaul.

What happens during seamless roaming in an ESS?

Clients can communicate and roam across overlapping coverage areas provided by multiple access points.

What are the two main components of the distribution system (DS)?

Distribution System Medium and Distribution System Service.

What is the technical term for the portal functionality of an access point?

Distribution System Access Function (DSAF).