Q1 Multiple choice Flag Which two statements correctly describe an extended service set (ESS)? (Choose two.) Select all that apply. A Each BSS within the ESS share a common BSSID. B Each BSS within the ESS has its own unique BSSID. C The SSID is common across all BSSs within the ESS. D The SSID is unique across all BSSs within the ESS. Correct answer