TCP & UDP Ports

Which port enables the FTP data connection for transferring file data?

TCP port 20

The FTP control connection to administer a session is established through:

TCP port 21

The SSH protocol runs on:

TCP port 22

Unblocking TCP port 22 enables which type(s) of traffic?

SSH (Secure Shell) and SFTP (Secure File Transfer Protocol)

is FTP secured with SSL/TLS encryption, used to safely transfer files over a network. It is based on traditional FTP and typically uses port 21, along with additional data ports.

FTPS (File Transfer Protocol Secure)

Is a secure file transfer protocol that operates over SSH, using port 22. It is not FTP and provides encrypted file transfers using a single, firewall-friendly connection.

SFTP (Secure File Transfer Protocol)

Is a secure way to connect to and control another computer and send files safely over a network like HTTPS or FTPS.

SSH (Secure Shell)

Is used to encrypt data so it can be sent safely between computers over the internet.

SSL/TLS (Secure Sockets Layer / Transport Layer Security)

_______ is an extension of SSH and runs by default on TCP port 22.

SFTP (Secure File Transfer Protocol)

Which of the following TCP ports is used by the Telnet protocol?

23

TCP port 25 is used by:

SMTP (Simple Mail Transfer Protocol)

Which of the TCP/UDP ports listed below is assigned to DNS?

53

A DHCP server runs on UDP port:

67

Which of the following UDP ports is used by a DHCP client?

68

Which protocol uses TCP port 80?

HTTP

Which of the UDP ports listed below is used by NTP?

123

An SNMP (Simple Network Management Protocol) agent receives requests on UDP port:

161

An SNMP management station receives SNMP notifications from agents on UDP port:

162

TCP port 389 is the default network port for:

LDAP (Lightweight Directory Access Protocol)

Which of the following TCP ports is used by HTTPS?

443

TCP port 445 is assigned to:

SMB (Server Message Block)

The Syslog protocol runs on UDP port:

514

Which TCP port is used by the SMTP protocol for secure email transmission over TLS?

587

A network administrator wants to secure the existing access to a directory service with SSL/TLS encryption. Which of the TCP ports listed below needs to be opened to implement this change?

636

Which of the following services runs on TCP port 1433?

SQL Server (Structured Query Language)

A network technician uses an RDP client on their Windows OS to remotely troubleshoot a problem on another Windows machine. Which TCP port needs to be opened for the built-in Windows RDP server to allow this type of network connection?

3389

Which of the TCP/UDP ports listed below is used for non-encrypted SIP traffic?

5060

Which TCP port is used by SIP over TLS?

5061

UDP port 69 is assigned to:

TFTP (Trivial File Transfer Protocl)

A DHCP Server runs on UDP port:

67

A DHCP Client runs on UDP port:

68

TCP port 389 is the default network port for:

LDAP (Lightweight Directory Access Protocol)

The Syslog protocol runs on UDP port:

514