Well Known TCP/UDP Ports

Question 1

What layer does UDP/TCP belong to

Answer 1

Layer 4

Question 2

A well-known poor is basically a port below number

Answer 2

1,204

Question 3

(FTP)
File transport protocol
Are in which port

Answer 3

20/21

Port 20 is used for Data

Port 21 is used for controlling packets or control segments that are sent

Question 4

Secure shell (SSH) & Secure file transfer protocol use which port ?

Answer 4

22

Question 5

What is port 23

Answer 5

Telnet

Unsecure protocol

Question 6

Port 25 is for which protocol ?

Answer 6

Simple Mail Transfer Protocol (SMTP)

Question 7

Port 53 is for ?

Answer 7

Domain Name System (DNS)

Question 8

DHCP is which ports ?

Answer 8

67/68

Question 9

Port 69 is ?

Answer 9

Trivial file transfer protocol (UDP)

Question 10

What is TCP port 80 ?

Answer 10

Hypertext Transfer protocol (HTTP)

Question 11

What is port 110 ?

Answer 11

Post Office Protocol (POP)

UDP

Question 12

Port 123 is ?

Answer 12

Network time protocol (NTP)

Question 13

Port 143 is ?

Answer 13

(IMAP)

Interactive mail access protocol

Question 14

What is port 161

Answer 14

(SNMP)

Simple network management protocol

Question 15

Port 389 is

Answer 15

(LDAP)

Lightweight Directory Access Protocol

Question 16

Port 443 is for

Answer 16

(HTTPS)

Hypertext transfer protocol secure

Question 17

Port 445

Answer 17

SMB

Server message block

Question 18

Port 1720 is

Answer 18

Basically an ITU recommended protocol

Used for audio visual communication sessions on TCP based networks

Question 19

Port 3389 is for

Answer 19

(RDP)

Remote Desktop protocol