Multiple choice technology testing Different types of termination types used in TFNs PSTN DAL SW/Tk Both (a) and (b) Reveal answer Fill a bubble to check yourself D Correct answer Explanation The question asks about termination types in TFNs. Options list PSTN, DAL, SW/TK individually, but the correct answer combines PSTN and DAL. SW/TK (Switch/Trunk) is likely a separate termination type not included in this pairing.