TCP/IP ports

Question 1

HTTP [Hypertext Transfer Protocol]

Answer 1

TCP 80

Question 2

HTTPS [HTTP over TLS/SSL]

Answer 2

TCP 443

Question 3

FTP [File Transfer Protocol]

Answer 3

TCP 20(data) TCP 21 (control)

Question 4

FTPS [FTP over TLS/SSL]

Answer 4

TCP 989 (data) TCP 990 (control)

Question 5

TFTP [Trivial File Transfer Protocol]

Answer 5

UDP 69

Question 6

Telnet

Answer 6

TCP 23

Question 7

SSH, SFTP

Answer 7

TCP 22

Question 8

SMTP [simple mail transfer protocol]

Answer 8

TCP 25

Question 9

POP [post office protocol]

Answer 9

TCP 110

Question 10

RPC [remote procedure call]

Answer 10

TCP 135, UDP 135

Question 11

SMB [server message block]

Answer 11

TCP 445

Question 12

IPP [internet printing protocol]

Answer 12

TCP 631, UDP 631

Question 13

Kerberos

Answer 13

TCP 88, UDP 88

Question 14

LDAP [lightweight directory access protocol]

Answer 14

TCP 389

Question 15

LDAPS [LDAP over SSL/TLS]

Answer 15

TCP 636

Question 16

RDP [remote desktop protocol]

Answer 16

TCP 3389

Question 17

NetBIOS [network basic input/output system]

Answer 17

UDP 137, 138, TCP 137, 139

Question 18

SNMP [simple network management protocol]

Answer 18

UDP 161, 162 [trap]

Question 19

DNS [domain name system]

Answer 19

TCP and UDP 53

Question 20

DHCP [dynamic host configuration protocol]

Answer 20

UDP 67, 68

Question 21

NTP [network time protocol]

Answer 21

UDP 123

Question 22

SRTP [secure real-time streaming protocol]

Answer 22

TCP and UDP 554

Question 23

RADIUS

Answer 23

UDP 1812, 1813

Question 24

TACACS+

Answer 24

TCP 49

Question 25

rlogin

Answer 25

TCP 513

Question 26

syslog

Answer 26

UDP 514