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12 Cards in this Set

  • Front
  • Back
20
TCP
FTP Data
21
TCP
FTP Control
22
TCP
SSH
23
TCP
Telnet
25
TCP
SMTP
53
UDP, TCP
DNS
67, 68
UDP
DHCP
69
UDP
TFTP
80
TCP
HTTP (WWW)
110
TCP
POP3
161
UDP
SNMP
443
TCP
SSL