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CCNA Port Number Flash Cards


Popular Applications And Their Well Known Port Number
  
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TCP 20-21
 
FTP
TCP 22
 
SSH
TCP 23
 
TELNET
TCP 25
 
SMTP
UDP 69
 
TFTP
TCP 80
 
HTTP
TCP 110
 
POP3
TCP 443
 
SSL
UDP 161
 
SNMP
UDP 53
 
DNS
UDP 67-68
 
DHCP

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