Protocols And Ports

Question 1

FTP

Answer 1

File Transfer Protocol
Sends and receives files between systems.
Port: tcp/20, tcp/21

Question 2

SSH

Answer 2

Secure Shell
Encrypted console access
Port: tcp/22

Question 3

Telnet

Answer 3

Telecommunication Network
Insecure console access
Port: tcp/23

Question 4

SMTP

Answer 4

Simple mail transfer protocol
Transfer email between mail servers
Port: tcp/25

Question 5

DNS

Answer 5

Domain name system
Convert domain names to IP addresses
Port: udp/53, tcp/53

Question 6

DHCP

Answer 6

Dynamic host configuration protocol
Automate the IP address configuration process
Port: udp/67, udp/68

Question 7

HTTP

Answer 7

Hypertext transfer protocol
Web server communication
Port: tcp/80

Question 8

HTTPS

Answer 8

Hypertext transfer protocol secure
Web server communication with encryption
Port: tcp/443

Question 9

POP3

Answer 9

Post office protocol version 3
Receive email into an email client
Port: tcp/110

Question 10

IMAP4

Answer 10

Internet message access protocol v4
A newer email client protocol
Port: tcp/143

Question 11

NetBIOS name service

Answer 11

Register, remove, and find windows services by name
Port: udp/137

Question 12

NetBIOS session service

Answer 12

Windows connection-oriented data transfer
Port: tcp/139

Question 13

SMB

Answer 13

Server message block
Windows file transfers and printer sharing
Port: tcp/445

Question 14

SNMP Query

Answer 14

Simple network management protocol
Gather metrics and manage network devices
Port: udp/161

Question 15

SNMP Trap

Answer 15

Simple network management protocol
Receive alerts from network devices
Port: udp/162

Question 16

LDAP

Answer 16

Lightweight directory access protocol
Directory services
Port: tcp/389

Question 17

RDP

Answer 17

Remote Desktop protocol
Graphical display of remote devices
Port: tcp/3389