TCP/UDP PORTS

Question 1

Which Port numbers does FTP (File Transfer Protocol) use?

Answer 1

TCP 20, TCP 21 Sends and receives files between systems

Question 2

Port number for SSH (Secure Shell)

Answer 2

TCP 22 (Encrypted console access)

Question 3

Port number for Telnet

Answer 3

TCP 23 (Telecommunication network & Insecure Console access)

Question 4

SMTP port number

Answer 4

TCP 25 - Simple Mail Transfer Protocol (Transfer email between mail servers)

Question 5

DNS port number?

Answer 5

UDP 53 & TCP 53 (Domain Name System)

Question 6

HTTP Port number

Answer 6

TCP 80 (Hypertext Transfer Protocol) *Web server communication

Question 7

HTTPS Port Number

Answer 7

TCP 443 Hypertext Transfer Protocol *Secure Web server communication with encryption

Question 8

POP3 Port Number

Answer 8

TCP 110 Post Office Protocol version 3
*Receive email into a email client

Question 9

IMAP4 Port Number

Answer 9

TCP 143 Internet Message Access Protocol v4
*A newer email client protocol

Question 10

RDP Port Number

Answer 10

TCP 3389 Remote Desktop Protocol
*Graphical display of remote devices

Question 11

NetBIOS Port Numbers (3 answers)

Answer 11

udp/137 NetBIOS name service
udp/138 NetBIOS datagram service
tcp/139 NetBIOS session service

Question 12

SMB Port Number

Answer 12

TCP/445- Server Message Block
*Windows file transfers and printer sharing

Question 13

AFP

Answer 13

TCP/548- Apple Filing Protocol
*MacOS File Transfers

Question 14

SLP

Answer 14

TCP/427 & UDP/427- Service Location Protocol
*Find MacOS services by name

Question 15

Port Numbers for DHCP are?

Answer 15

UDP/67 & UDP/68- Dynamic Host Configuration Protocol
*Automate the IP address configuration process.

Question 16

LDAP port number

Answer 16

TCP/389- Lightweight Directory Access Protocol.
*Directory services

Question 17

SNMP port number?

Answer 17

UDP/161- Simple Network Management Protocol.
*Gather metrics and manage network devices