Well known ports

Question 1

What is port 20/21?

Answer 1

FTP

Question 2

What is port 22?

Answer 2

SSH

Question 3

What is port 23?

Answer 3

Telnet

Question 4

What is port 25?

Answer 4

SMTP

Question 5

What is port 53?

Answer 5

DNS

Question 6

What is port 67?

Answer 6

DHCP

Question 7

What is port 69?

Answer 7

TFTP

Question 8

What is port 80?

Answer 8

HTTP

Question 9

What is port 110?

Answer 9

POP3

Question 10

What is port 135?

Answer 10

RPC

Question 11

What is port 137-139?

Answer 11

NetBIOS

Question 12

What is port 143?

Answer 12

IMAP

Question 13

What is port 161/162?

Answer 13

SNMP

Question 14

What is port 389?

Answer 14

LDAP

Question 15

What is port 443?

Answer 15

HTTPS

Question 16

What is port 445?

Answer 16

SMB

Question 17

What port is FTP?

Answer 17

20/21

Question 18

What port is SSH?

Answer 18

22

Question 19

What port is Telnet?

Answer 19

23

Question 20

What port is SMTP?

Answer 20

25

Question 21

What port is DNS?

Answer 21

53

Question 22

What port is DHCP?

Answer 22

67

Question 23

What port is TFTP?

Answer 23

69

Question 24

What port is HTTP?

Answer 24

80

Question 25

What port is POP3?

Answer 25

110

Question 26

What port is RPC?

Answer 26

135

Question 27

What port is NetBIOS?

Answer 27

137-139

Question 28

What port is IMAP?

Answer 28

143

Question 29

What port is SNMP?

Answer 29

161/162

Question 30

What port is LDAP?

Answer 30

389

Question 31

What port is HTTPS?

Answer 31

443

Question 32

What port is SMB?

Answer 32

445