(1)Common TCP Ports

Question 1

What port does File Transfer Protocol (FTP) use?

Answer 1

FTP uses TCP Ports 20 and 21

Question 2

What port does Secure Shell (SSH) use?

Answer 2

SSH uses TCP port 22

Question 3

What port does Telnet use?

Answer 3

Telnet uses TCP port 23

Question 4

What port does Simple Mail Transfer Protocol (SMTP) use?

Answer 4

SMTP uses TCP port 25

Question 5

What port does Domain Name Service (DNS) use?

Answer 5

DNS uses TCP port 53

Question 6

What port does Hyper Text Transfer Protocol (HTTP) use?

Answer 6

HTTP uses TCP port 80

Question 7

What port does Post Office Protocol 3 (POP3) use?

Answer 7

POP3 uses TCP port 110

Question 8

What port does Network Time Protocol (NTP) use?

Answer 8

NTP uses TCP port 123

Question 9

What port does Internet Message Access Protocol (IMAP) use?

Answer 9

IMAP uses TCP port 143

Question 10

What port does Lightweight Directory Access Protocol (LDAP) use?

Answer 10

LDAP uses TCP port 389

Question 11

What port does Hyper Text Transfer Protocol Secure (HTTPS) use?

Answer 11

HTTPS uses TCP port 443

Question 12

What port does Lightweight Directory Access Protocol Secure (LDAPS) use?

Answer 12

LDAPS uses TCP port 636

Question 13

What port does SQL Server typically use?

Answer 13

SQL server typically uses TCP port 1433

Question 14

What port does Oracle Typically use?

Answer 14

Oracle typically uses TCP port 1521

Question 15

What port does Point to Point Tunneling Protocol (PPTP) use?

Answer 15

PTTP typically uses TCP port 1723

Question 16

What port does Remote Desktop Protocol (RDP) use?

Answer 16

RDP typically uses TCP port 3389