CCIE exam often required across the PIX, it must be alluding to, the majority relates to ports, commonly used to talk about security:

FTP-data TCP 20

FTP TCP21

SSH TCP 22

Telnet TCP 23

DNS TCP 53 UDP 53

DHCP Source UDP 68

DHCP Destination UDP 67

TFTP UDP 69

HTTP TCP 80

SCEP TCP 80

HTTPS/SSL TCP 443 UDP 443

NTP UDP 123

WINS UDP 137 138 139

SNMP UDP 161

SNMP Trap UDP 162

LDAP TCP 389

SMB TCP 445

Syslog TCP 514 TCP 1468 UDP 514

MS SQL TCP 1433

H.323 RAS UDP 1718 1719

H.323/H.225 TCP 1720

SCCP TCP 2000 3224

Skinny Gateway(Analogue) TCP 2001

Skinny Gateway(Digital) TCP 2002

MGCP Control UDP 2427

MGCP Backhaul UDP 2428

RTP UDP 16384-32767

PO between Director and IDS UDP 45000

URL Filter TCP 15868

Tacacs+ TCP 49

Radius UDP 1812 1645

kerberos TCP 88 UDP 88

PPTP TCP 1723

L2TP UDP 1701

ISAKMP UDP 500

ISAKMP with NAT- T UDP 4500

ESP IP 50

AHP IP 51

GRE IP 47

BGP TCP 179

RIP UDP 520

traceroute UDP 33400-34400