Port Numbers Flashcards
(31 cards)
What is the purpose of Port 80?
HTTP - Unencrypted web browsing
Port 80 is commonly used for standard web traffic.
What does Port 443 serve?
HTTPS - Encrypted web browsing
Port 443 is used for secure web traffic.
Which port is used for FTP data transfer?
Port 20
Port 20 is the data channel for FTP.
What is the purpose of Port 21?
FTP control - File transfer commands
Port 21 is used for sending commands in FTP.
What services does Port 22 provide?
SSH/SFTP - Secure remote access and file transfer
Port 22 is commonly used for secure shell access and file transfer.
Which port is associated with TFTP?
Port 69
TFTP is a simpler file transfer protocol without authentication.
What is the purpose of Port 25?
SMTP - Sending email between servers
Port 25 is primarily used for email transmission.
What does Port 110 do?
POP3 - Downloading email from server
Port 110 is used for retrieving emails.
What is the function of Port 143?
IMAP - Accessing email on server
Port 143 allows access to emails without downloading them.
Which port is used for encrypted email sending?
Port 465 - SMTPS
SMTPS uses Port 465 for secure email transmission.
What does Port 3389 serve?
RDP - Windows remote desktop
Port 3389 is used for remote desktop connections on Windows.
What is the purpose of Port 53?
DNS - Domain name resolution
Port 53 is essential for translating domain names into IP addresses.
What does Port 67 do in DHCP services?
DHCP server - Assigns IP addresses
Port 67 is used by the DHCP server to allocate IP addresses.
Which port is used for network time synchronization?
Port 123 - NTP
NTP is crucial for synchronizing clocks across devices.
What is the function of Port 161?
SNMP - Network device monitoring
Port 161 is used for monitoring network devices.
What is the purpose of Port 3306?
MySQL - MySQL database connections
Port 3306 is specifically used for MySQL database access.
What does Port 137 serve?
NetBIOS Name - Windows name resolution
Port 137 is part of the NetBIOS service for name resolution.
What is the purpose of Port 515?
LPD - Line printer daemon (Unix printing)
Port 515 is used for managing print jobs on Unix systems.
What does Port 1812 provide?
RADIUS - Remote user authentication
Port 1812 is used for authenticating users remotely.
Which port is used for VoIP signaling?
Port 5060 - SIP
Port 5060 is commonly associated with SIP for voice over IP.
What is the purpose of Ports 0-1023?
Well-known ports - Reserved for system services
These ports are reserved for widely-used protocols.
Fill in the blank: Port 22 is used for _______.
SSH/SFTP
This port is essential for secure remote access.
True or False: Port 23 is secure for remote access.
False
Port 23 (Telnet) is unencrypted and should be avoided.
What does Port 993 serve?
IMAPS - Encrypted email access
Port 993 is used for secure access to emails.
