Ports and Protocols Flashcards
(20 cards)
What are the three standardized port ranges?
0–1023: Well-known ports
1024–49151: Registered ports
49152–65535: Dynamic/private ports
What is a protocol in networking?
A set of rules and conventions for communication between network devices.
What is a port in networking?
A logical access channel for communication using a specific protocol.
What’s the difference between TCP and UDP?
TCP: Connection-oriented, reliable delivery, error checking
UDP: Connectionless, best-effort delivery, faster but less reliable
What port does SMTP use?
Port 25
What port does IMAP use?
Port 143
What port does POP3 use?
Port 110
What port does HTTP use?
Port 80
What port does HTTPS use?
Port 443
What ports does FTP use?
Ports 20 (data) and 21 (control)
What port does TFTP use?
Port 69
What port does Telnet use?
Port 23
What port does SSH use?
Port 22
What port does RDP use?
Port 3389
What port does DNS use?
Port 53
What ports does NetBIOS use?
Ports 137 and 139
What ports does DHCP use?
Ports 67 (server) and 68 (client)
What ports does SNMP use?
Ports 161 (queries) and 162 (traps/notifications)
What port does LDAP use?
Port 389
What port does SMB use?
Port 445
