Common Network Ports

Question 1

FTP Common PortS

Answer 1

File Transfer Protocol uses tcp/20 and tcp/21

Question 2

SSH Common Port
SFTP

Answer 2

Secure Shell uses tcp/22

Question 3

Telnet Common Port

Answer 3

Telecommunications Network uses tcp/23

Question 4

SMTP Common Port

Answer 4

Simple Mail Transfer Protocol uses tcp/25

Question 5

DNS Common Port

Answer 5

Domain Name System uses udp/53

Question 6

DHCP Common PortS

Answer 6

Dynamic Host Configuration Protocol uses udp/67 and udp/68

Question 7

HTTP Common Port

Answer 7

Hypertext Transfer Protocol uses tcp/80

Question 8

HTTPS Common Port

Answer 8

Hypertext Transfer Protocol Secure uses tcp/443

Question 9

POP3 Common Port

Answer 9

Post Office Protocol version 3 uses tcp/110

Question 10

IMAP Common Port

Answer 10

Internet Message Access Protocol v4 uses tcp/143

Question 11

SMB Common PrortS

Answer 11

Server Message Block uses 445
udp/137 - nbname
tcp/139 - nbsession

Question 12

SNMP Common PortS

Answer 12

Simple Network Management Protocol uses
Queries: udp/161
Traps: udp/162

Question 13

LDAP Common Port

Answer 13

Lightweight Directory Access Protocol uses tcp/389

Question 14

RDP Common Port

Answer 14

Remote Desktop Protocol uses tcp/3389

Question 15

SLP Common Port

Answer 15

Service Location Protocol uses 427

Question 16

TFTP

Answer 16

Trivial File Transfer Protocol uses 69

Question 17

AFP Common Port

Answer 17

Apple Filing Protocol uses port 548