ports

Question 1

Port 20

Answer 1

FTP Data Transfer – Used for transferring files between a client and server in FTP.

Question 2

Port 21

Answer 2

SFTP-Used for controlling FTP communication (commands and responses).

Question 3

Port 22

Answer 3

Secure Shell-Secure remote login and encrypted communication for command-line access.

Question 4

Port 23

Answer 4

Telnet – Unencrypted remote login service, now rarely used due to security risks.

Question 5

Port 25

Answer 5

SMTP (Simple Mail Transfer Protocol) – Used for sending emails between mail servers.

Question 6

Port 53

Answer 6

DNS (Domain Name System) – Resolves domain names to IP addresses (name-to-IP mapping).

Question 7

Port 80

Answer 7

HTTP (HyperText Transfer Protocol) – Used for standard web traffic (unencrypted).

Question 8

Port 110

Answer 8

POP3 (Post Office Protocol version 3) – Used by email clients to retrieve messages from a mail server.

Question 9

Port 143

Answer 9

IMAP (Internet Message Access Protocol) – Used for retrieving emails from a mail server (more advanced than POP3).

Question 10

Port 389

Answer 10

LDAP (Lightweight Directory Access Protocol) – Used for accessing and managing directory services (e.g., Active Directory).

Question 11

Port 443

Answer 11

HTTPS (HyperText Transfer Protocol Secure) – Secure, encrypted communication used by websites (standard for secure web browsing).

Question 12

Port 3306

Answer 12

MySQL – Used for database management and communication between MySQL servers and clients.

Question 13

Port 69

Answer 13

TFTP (Trivial File Transfer Protocol) – A simple file transfer protocol, typically used for booting and transferring configuration files.

Question 14

Port 995

Answer 14

POP3S (POP3 Secure) – Secure version of POP3 for retrieving emails from mail servers over SSL/TLS encryption.

Question 15

Port 1433

Answer 15

MS SQL Server – Default port for Microsoft SQL Server to communicate with client applications.

Question 16

Port 989

Answer 16

FTPS (FTP Secure) – Secure version of FTP that uses SSL/TLS encryption for data transfer.

Question 17

Port 161/162

Answer 17

SNMP (Simple Network Management Protocol) – Used for managing and monitoring network devices like routers, switches, and servers.

Question 18

Port 465

Answer 18

SMTPS (Secure Mail Transfer Protocol) – Used for sending emails securely over SSL/TLS encryption, typically for SMTP over a secure connection.

Question 19

Port 514

Answer 19

Protocol for sending system log or event messages to a remote server for monitoring.

Question 20

Port 631

Answer 20

IPP (Internet Printing Protocol) – Used to manage print services over the network.

Question 21

Port 3389

Answer 21

RDP (Remote Desktop Protocol) – Used to connect to Windows machines remotely and access a graphical desktop.

Question 22

Port 5432

Answer 22

PostgreSQL Database – Default port for PostgreSQL database management system.

Question 23

Port 5900

Answer 23

VNC (Virtual Network Computing) – Used for remote desktop sharing. It allows graphical desktop access over a network.

Question 24

Port 8000

Answer 24

HTTP Alternate (HTTP Server) – Commonly used for web servers when the default port 80 is in use or blocked.

Question 25

What is Port 8080

Answer 25

HTTP Alternative (Web Server) – Often used for HTTP traffic as an alternative to Port 80 (common for testing or development purposes).

Question 26

Port 8888

Answer 26

Web Services (Alternative HTTP port) – Often used for web applications, Jupyter notebooks, and other non-standard HTTP services.

Question 27

Port 1812

Answer 27

RADIUS (Remote Authentication Dial-In User Service) – Used for authenticating and authorizing network access, primarily in VPNs or Wi-Fi networks.

Question 28

Port 2049

Answer 28

NFS (Network File System) – Used for file sharing between Linux/Unix systems over the network.

Question 29

Port 3307

Answer 29

MySQL Cluster – Default port for MySQL Cluster nodes.

Question 30

Port 5060

Answer 30

SIP (Session Initiation Protocol) – Used for establishing, maintaining, and terminating voice and video calls over the internet (VoIP).

Question 31

6660-6669

Answer 31

IRC (Internet Relay Chat) – Used for Internet Relay Chat services to communicate through text in real-time.

Question 32

Port 27017

Answer 32

MongoDB – Default port for the MongoDB NoSQL database.

Question 33

Port 1723

Answer 33

PPTP (Point-to-Point Tunneling Protocol) – Used for creating virtual private network (VPN) connections over the internet.

Question 34

Port 445

Answer 34

SMB (Server Message Block) – Used for file and printer sharing. SMB is often targeted by ransomware attacks, such as WannaCry

Question 35

Port 123

Answer 35

NTP (Network Time Protocol) – Used for synchronizing clocks across devices

Question 36

Port 67

Answer 36

DHCP-Dynamic Host Configuration Protocol

Question 37

Port 169

Answer 37

APIPA- Automatic IP Private Access