TCP uses _________________ to check

TCP uses _________________ to check the safe and sound arrival of data.[1] an acknowledgment mechanism [2] out-of-band signaling[3] the services of another protocol [4] None of the choices are correct

結果 (繁體中文) 1:

TCP使用_________________檢查數據的安全和聲音到來。
[1]確認機制[2]外的帶外信令
[3]其它協議的服務[4]的選擇中沒有一個是正確的

結果 (繁體中文) 2:

TCP 使用 * 來檢查資料的安全和聲音到達。
{1} 確認機制 [2] 帶外信令
[3] 另一個協定的服務 [4] 沒有一個選項是正確的

結果 (繁體中文) 3:

TCP使用“uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu。
[1]一種應答機制[2]帶外信令
[3]另一個協定的服務[4]沒有一個選擇是正確的