A、trAnsport lAyEr protoCol hAs sEvErAl rEsponsiBilitiEs, onE is to CrEAtE A proCEss-to-proCEss (progrAm-to-progrAm) CommuniCAtion; tCp usEs port ______ to ACComplish this.AnothErrEsponsiBility oF A trAnsport lAyEr protoCol is to CrEAtE A ______ AnD Error-Control mEChAnism AtthE trAnsport lEvEl. tCp usEs A sliDing ______ protoCol to AChiEvE Flow Control. it usEs thEACknowlEDgmEnt pACkEt, timE-out, AnD rEtrAnsmission to AChiEvE ______ Control. thE trAnsportlAyEr is Also rEsponsiBlE For proviDing A ConnECtion mEChAnism For thE AppliCAtion progrAm. thEAppliCAtion progrAm sEnDs ______ oF DAtA to thE trAnsport lAyEr. it is thE rEsponsiBility oF thEtrAnsport lAyEr At thE sEnDing stAtion to mAkE A ConnECtion with thE rECEivEr.
A、ports B、strEAmsC、pACkEtsD、CElls