Test Your Knowledge About Common Network Port Numbers? Quiz!

hyper text transfer protocol

Remote login protocol

Hypertext Transfer Protocol Secure (SSL Public Certificate)

Domain Names Services (converts friendly name to IP address)

Is used to upload and download files from the server.

Email/Incoming/Microsoft outlook & express

Allows the remote users to access the system.

email/outgoing/microsoft outlook express

Instant message access protocol (firewall/router)

Time

Light Weight Directory Access Protocol (Active Directory)

memorizes

Port 3389 is the correct answer because it is the default port used by the Remote Desktop Protocol (RDP). RDP is a proprietary protocol developed by Microsoft that allows users to remotely connect to and control another computer over a network. By using port 3389, users can establish a secure remote desktop connection to a Windows-based computer. This port is commonly used for remote administration and accessing files and applications on a remote machine.

ICMP is ping/pong (verify if the connection is Alice, by echoing packets)

Trvial file transfer protocol(firmware updates like for firewall drivers)

Simple Network management Protocol (Active Directory)

The number "500" in this context could refer to a specific port number. In computer networking, port numbers are used to identify specific processes or services running on a device. In this case, "500" might be the port number associated with the VPN L2TP (Layer 2 Tunneling Protocol) external service. This port would be used for communication and data transfer related to the VPN L2TP protocol.

Microsoft SQL server

The correct answer is 135-139. These port numbers correspond to the NetBIOS (Network Basic Input/Output System) protocol, which is used for communication between computers on a local area network (LAN). NetBIOS allows applications on different computers to communicate with each other and share resources. Port numbers 135-139 are specifically used for NetBIOS session services, such as establishing and terminating connections, as well as for name services, which handle name registration and resolution.

Server that talks dialect/Ispec (time based security token)

New News Transfer Protocol

For HP and Lexmark

Terminal Access Controller Access control system

UDP Remote Authetication Dial in User Service

The correct answer is 1723. VPN (Virtual Private Network) encrypts and encapsulates data to ensure secure transmission over a network. Port 1723 is commonly used for VPN communication using the PPTP (Point-to-Point Tunneling Protocol) protocol. PPTP establishes a secure connection by encapsulating data within IP packets and encrypting it, providing a secure and private communication channel.

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The given answer, 50, is the correct answer because it is the port number commonly used for PPTP (Point-to-Point Tunneling Protocol) VPN connections. PPTP is a protocol that allows secure and private communication between a client and a server over the internet. Port numbers are used to identify specific processes or services on a network, and port 50 is specifically assigned to PPTP VPN connections.

Secure Shell (SSH) is a protocol used to securely connect to remote servers and devices. It operates on port number 22. Port 21 is used for FTP, port 23 is used for Telnet, and port 25 is used for SMTP.

LDAP (Lightweight Directory Access Protocol) is a protocol used for accessing and managing directory information services. The given options represent different ports commonly used for LDAP communication. LDAP over TLS/SSL, also known as LDAPS, is a secure version of LDAP that uses SSL/TLS encryption to protect the data transmitted between the client and server. Port 636 is the standard port for LDAPS communication. Therefore, the correct answer is 636.

Port 23 is used for Telnet, a network protocol for remote command-line access. The other options are all related to email:  

25: SMTP (Simple Mail Transfer Protocol) - Used for sending emails.

110: POP3 (Post Office Protocol version 3) - Used for retrieving emails.

143: IMAP (Internet Message Access Protocol) - Used for accessing and managing emails on a mail server.

For HTTP proxy

BOOTP is a network protocol that allows a client to obtain its IP address automatically from a server. It stands for Bootstrap Protocol. The numbers 59, 47, 67, and 80 seem to be irrelevant to the question and do not provide any context or relation to BOOTP. Therefore, the correct answer is 67, which is likely the correct answer based on the given information.

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The correct answer is 1701. L2TP (Layer 2 Tunneling Protocol) is a protocol used for creating virtual private networks (VPNs). It operates at the transport layer of the OSI model and uses UDP port 1701 for establishing and maintaining the tunnel between the client and server. This port is specifically designated for L2TP traffic, allowing for secure communication over the internet.

The correct answer is 1723. PPTP stands for Point-to-Point Tunneling Protocol, which is a network protocol used for creating VPNs (Virtual Private Networks). PPTP uses TCP port 1723 for establishing a connection between the client and the VPN server. Therefore, port 1723 is the correct answer as it is specifically associated with PPTP.

Video Conferencing

The given question seems to be incomplete or not readable as it only provides a list of numbers without any context or prompt. Therefore, it is not possible to generate an explanation for the correct answer.

File and printer sharing