Port type numbers

Question 1

File transfer protocol(FTP)

Answer 1

TCP/20, TCP 21

send and receive files between system

Question 2

Secure Shell (SSH)

Answer 2

TCP/22

encrypted console access

Question 3

Telecommunication Network (Telent)

Answer 3

TCP/23

Insecure console access

Question 4

Simple mail transfer protocol (SMTP)

Answer 4

TCP/25

Transfer emails between mail servers

Question 5

Domain Name system (DNS)

Answer 5

udp/53, tcp/53

convert domain names to IP address

Question 6

Hypertext transfer protocol (HTTP)

Answer 6

tcp/80

Web server communication

Question 7

post office protocol version 3 (POP3)

Answer 7

tcp/110

receive email into a email client

Question 8

Internet massage access protocol (IMAP4)

Answer 8

tcp/143

a newer email client protocol

Question 9

Hypertext transfer protocol secure (HTTPS)

Answer 9

tcp/443

web server communication with encryption

Question 10

Remote desktop protocol (RDP)

Answer 10

tcp/3389

graphic display of remote devices

Question 11

(NetBIOS) name service

Answer 11

tcp/137

Register, remove, and find Windows services by name

Question 12

NetBIOS datagram service

Answer 12

tcp/138

windows connectionless data transfer

Question 13

NetBIOS session service

Answer 13

tcp/139

windows connection-oriented data transfer

Question 14

Service location protocol (SLP)

Answer 14

tcp/427, udp/427

find MAC OS service by name

Question 15

Server Message Block (SMB)

Answer 15

tcp/445

windows file transfer and printer sharing

Question 16

Apple Filling Protocol (AFP)

Answer 16

TCP/548

Mac OS file transfer

Question 17

Dynamic Host configuration Protocol (DHCP)

Answer 17

udp/67-68

automate the IP address configuration process

Question 18

lightweight directory access protocol (LDAP)

Answer 18

tcp/389, udp, 389

directory service protocol

Question 19

simple network management protocol (SNMP)

Answer 19

udp/161

gather metric and manage network device