These questions are based on 642-822 – Interconnecting Cisco Networking Devices Part 1.
Objective: Explain and select the appropriate administrative tasks required for a WLAN
Sub-Objective: Identify and describe the purpose of the components in a small wireless network (including: SSID, BSS, ESS)
Single Answer, Multiple Choice
Which topology is used to connect multiple wireless clients to a wired network resource using an access point?
A Basic Service Set (BSS) is a topology in which a single access point is used to connect the mobile clients or to connect to wired network resources. It is also referred to as the single building block for wireless topology.
The Extended Services Set (ESS) option is incorrect because in ESS, an extended wireless topology, is used where a distribution system (DS) connects two or more Basic Service Sets. ESS does not require any client configuration because ESS includes a common SSID which provides roaming from access points to access points.
The Independent Basic Service Set (IBSS) option is incorrect because this is the ad hoc mode, which does not require an intermediate access point to provide connectivity to the mobile clients. It can be used in a small office because it provides limited coverage.
The Distribution System Services (DSS) option is incorrect because DSS is a set of services provides by the DS. This enables the MAC to transfer MSDUs between BSSs within an ESS.