300-365 · Question #183
Which 802.11 standard is TSpec part of?
The correct answer is B. 802.11e. TSpec (Traffic Specification) is defined within IEEE 802.11e, the amendment that introduced QoS mechanisms to the 802.11 standard.
Question
Which 802.11 standard is TSpec part of?
Options
- A802.11d
- B802.11e
- C802.11f
- D802.11g
How the community answered
(28 responses)- A4% (1)
- B93% (26)
- D4% (1)
Why each option
TSpec (Traffic Specification) is defined within IEEE 802.11e, the amendment that introduced QoS mechanisms to the 802.11 standard.
802.11d is the regulatory domain amendment, addressing operation requirements such as channel and power limits in different countries, and has no relation to QoS or TSpec.
IEEE 802.11e is the QoS amendment to the base 802.11 standard and defines TSpec as part of its admission control framework. TSpec is used by clients to negotiate bandwidth and delay requirements with the AP during EDCA (Enhanced Distributed Channel Access) and HCCA (HCF Controlled Channel Access) traffic streams, enabling Wi-Fi Multimedia (WMM) functionality.
802.11f defined the Inter-Access Point Protocol (IAPP) for roaming between APs from different vendors and contains no QoS or TSpec definitions.
802.11g is the 2.4 GHz high-rate DSSS/OFDM amendment extending 802.11b throughput and does not define any QoS mechanisms or TSpec.
Concept tested: IEEE 802.11e TSpec and QoS admission control
Source: https://standards.ieee.org/ieee/802.11e/3127/
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