TCP/IP 응용계층 프로토콜로 옳지 않은 것은?
HTTP(Hyper Text Transfer Protocol)
FTP(File Transfer Protocol)
SMTP(Simple Mail Transfer Protocol)
ARP(Address Resolution Protocol)
TCP/IP 응용계층 프로토콜로 옳지 않은 것은?
A. HTTP(Hyper Text Transfer Protocol)
B. FTP(File Transfer Protocol)
C. SMTP(Simple Mail Transfer Protocol)
D. ARP(Address Resolution Protocol)