Application Ports Flashcards
(22 cards)
What is Port 80 used for?
HTTP - Used for standard web browsing, allowing communication between a web client and a web server.
Port 80 is the default port for serving web pages.
What is the purpose of Port 443?
HTTPS - Used for secure web browsing, encrypting communication between the client and server.
Port 443 ensures that data transmitted over the web is secure.
What is Port 8080 commonly used for?
HTTP Backup port - Often used as an alternative port for web servers, especially when port 80 is already in use.
Port 8080 is frequently used for testing and development.
What protocol uses Port 25?
SMTP - Used for sending emails from a client to a mail server.
Port 25 is the standard port for email transmission.
What is the function of Port 110?
POP3 - Used for retrieving emails from a mail server, but unencrypted.
Port 110 allows users to download emails from the server.
What does Port 143 represent?
IMAP - Used for retrieving emails from a mail server, with persistent connections.
IMAP allows users to manage their emails directly on the server.
What is the secure version of IMAP?
Port 993 - IMAP SSL - Secure version of IMAP.
IMAP SSL encrypts the data exchanged between the client and server.
What does Port 995 signify?
POP3 SSL - Secure version of POP3.
POP3 SSL encrypts email retrieval to enhance security.
What is the role of Port 20?
FTP data - Used for file transfer protocol, allowing users to upload and download files.
Port 20 is primarily used for data transfer in FTP sessions.
What does Port 21 serve as?
FTP control - The standard port for clients to send commands and receive responses from an FTP server.
Port 21 manages the control commands for FTP.
What protocol is associated with Port 22?
SSH - Used for secure shell, providing secure remote access to a server.
Port 22 is widely used for secure command-line access.
What is Port 23 used for?
Telnet - Used for remote login, but unencrypted.
Telnet on Port 23 is considered insecure for sensitive communications.
What does Port 3389 enable?
RDP - Used for Remote Desktop Protocol, allowing remote access to a computer’s desktop.
Port 3389 is commonly used in Windows environments for remote desktop access.
What database communication uses Port 3306?
MySQL - Used for communicating with MySQL databases.
Port 3306 is the default port for MySQL database servers.
What is the function of Port 5432?
PostgreSQL - Used for communicating with PostgreSQL databases.
Port 5432 is the default port for PostgreSQL database servers.
What does Port 1521 correspond to?
Oracle - Used for Oracle database communication.
Port 1521 is the default port for Oracle database connections.
What is the role of Port 53?
DNS - Used for Domain Name System, translating domain names to IP addresses.
Port 53 is essential for name resolution on the internet.
What protocol is associated with Port 135?
RPC - Used for Remote Procedure Call, a protocol for distributed computing.
Port 135 facilitates communication between software applications on different computers.
What does Port 139 support?
NetBIOS - Used for NetBIOS, a protocol for local network communication.
Port 139 is used in Windows networking for file and printer sharing.
What is Port 445 used for?
SMB - Used for Server Message Block, a protocol for file sharing and printing.
Port 445 is commonly used in Windows-based networks.
What does Port 67/68 represent?
DHCP - Used for Dynamic Host Configuration Protocol, which assigns IP addresses to devices on a network.
DHCP automates the configuration of IP addresses for devices.
What is the purpose of Port 123?
NTP - Used for Network Time Protocol, synchronizing clocks across a network.
NTP ensures accurate timekeeping across networked devices.
