TCP and UDP Ports Quiz

Ports between 0 and 1023 are referred to as:

well-known or system ports

Port numbers in the range from 1024 to 49151 are referred to as:

user or registered ports

Port numbers in the range of 49152-65535 are referred to as:

dynamic, private, or ephemeral ports

FTP

TCP 20 & 21

FTP Data Connection for sending file data is established through port number:

TCP 20

FTP Control Connection for administering a session is established through port number:

TCP 21

SSH

TCP 22

Telnet

TCP 23

SMTP

TCP 25

DNS

UDP 53

DHCP (predecessor BOOTP) uses:

UDP 67 & 68

TFTP

UDP 69

HTTP

TCP 80

HTTPS

TCP 443

NTP

UDP 123

SNMP uses:

UDP 161 & 162

An SNMP Agent gathers statistics using port:

UDP 161

SNMP alerts are received on port:

UDP 162

LDAP

TCP 389

SMB

TCP 445

LDAPS

TCP 636

Syslog

UDP 514

RDP

TCP 3389

SIP

TCP 5060 & 5061