Questions with Answers
NNTP - Answer-Network News Transport Protocol: Supports the posting and reading of
articles on Usenet news servers
TCP Port 119
UDP Port
NTP - Answer-Network Time Protocol: Used by a network device to synchronize its
clock with a time server (NTP server)
TCP Port
UDP Port 123
POP3 - Answer-Post Office Protocol Version 3: Retrieves email from an email server
TCP Port 110
UDP Port
RDP - Answer-Remote Desktop Protocol: A Microsoft protocol that allows a user to view
and control the desktop of a remote computer
TCP Port 3389
UDP Port
rsh - Answer-Remote Shell: Allows commands to be executed on a computer from a
remote user
TCP Port 514
UDP Port
RTP - Answer-Real-time Transport Protocol: Used for delivering media-based data
(such as Voice over IP) through the network
TCP Port 5004, 5005
UDP Port 5004, 5005
RTSP - Answer-Real-Time Streaming Protocol: Communicates with a media server (for
example, a video server) and controls the playback of the server's media files
TCP Port 554
UDP Port 554