Protocols

Question 2

What port does SSH use?

Answer 2

22 TCP

Question 3

What port does Telnet use?

Answer 3

23 TCP

Question 4

What port does DNS use?

Answer 4

53 TCP/UDP

Question 5

What ports does DHCP use for client/server communication?

Answer 5

67 (server to client), 68 (client to server), both UDP

Question 6

What port does TFTP use?

Answer 6

69 UDP

Question 7

What port does HTTP use?

Answer 7

80 TCP

Question 8

What port does HTTPS use?

Answer 8

443 TCP

Question 9

What port does SMTP use for sending email?

Answer 9

25 TCP

Question 10

What port does POP3 use for email retrieval?

Answer 10

110 TCP

Question 11

What port does IMAP use?

Answer 11

143 TCP

Question 12

What port does SNMP agent use to listen for polling?

Answer 12

161 UDP

Question 13

What port does SNMP manager use to receive traps?

Answer 13

162 UDP

Question 14

What port does Syslog use?

Answer 14

514 UDP

Question 15

What port does FTP control use?

Answer 15

21 TCP

Question 16

What port does FTP data use?

Answer 16

20 TCP

Question 17

What port does BGP use?

Answer 17

179 TCP

Question 18

What port does RIP use?

Answer 18

520 UDP