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Essential Network Port Numbers

Master the most important network port numbers for the CompTIA Network+ exam. This deck covers key protocols and their associated ports for quick and effective review.

Decklio

SNMP

Front

161

Back

SMB

Front

445

Back

DNS

Front

53

Back

FTP (control)

Front

21

Back

FTP (data)

Front

20

Back

HTTP

Front

80

Back

TFTP

Front

69

Back

LDAP

Front

389

Back

SMTP

Front

25

Back

RDP

Front

3389

Back

SSH

Front

22

Back

Telnet

Front

23

Back

POP3

Front

110

Back

HTTPS

Front

443

Back

IMAP

Front

143

Back

DHCP

Front

67/68

Back