Server Ports

Question 1

TCP 20

Answer 1

FTP Data

Question 2

TCP 21

Answer 2

FTP File control

Question 3

TCP 22

Answer 3

SSH
Secure shell
Secure log in/ file transfer/ port forwarding

Question 4

TCP/UDP 23

Answer 4

Telnet
Client device connect to a Telnet server

Question 5

TCP 25

Answer 5

SMTP ( Simple mail transfer protocol)
Sends mail

Question 6

TCP/UDP 53

Answer 6

DNS
Ability to access domains

Question 7

UDP 69

Answer 7

TFTP ( trivial file transfer protocol )
Read and write files to or from a remote host

Question 8

TCP 80

Answer 8

Hypertext transfer protocol (http)
Unsecured web data transmission

Question 9

TCP/UDP 110

Answer 9

Post office protocol (POP3)

Lets email clients receive mail from email servers

Question 10

TCP/UDP 139

Answer 10

SMB NetBIOS

Sharing printers and files
Windows based network

Question 11

TCP/UDP 161

Answer 11

Simple network management protocol (SNMP)
Manage and monitor network devices remotely

Question 12

TCP/UDP 389

Answer 12

Lightweight directory access protocol (LDAP)
Access protected network resources

Question 13

TCP/UDP 67/68

Answer 13

DHCP
67 Source
68 Destination
Assign an IP address to client

Question 14

TCP 443

Answer 14

Hypertext transfer protocol secured (HTTPS)
HTTP but secure

Question 15

TCP 445

Answer 15

Server message block (SMB)
Printer sharing services

Question 16

TCP 445

Answer 16

Server message block (SMB)
Printer sharing services

Question 17

TCP 3388

Answer 17

Remote desktop protocol (RDP)
Gain access and control desktop computer remotely