Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/41

Click to flip

41 Cards in this Set

  • Front
  • Back
FTP data port
TCP 20
FTP control port
TCP 21
SSH
TCP 22
Telnet
TCP 23
SMTP
TCP 25
DNS lookup
UDP 53
DNS zone transfer
TCP 53
Bootstrap protocol server; DHCP server
UDP 67
Bootstrap protocol client; DHCP client
UDP 68
TFTP
UDP 69
HTTP
TCP 80
Kerberos
TCP 88
POPv2
TCP 109
POPv3
TCP 110
Sun RPC; NFS
TCP 111
Network Time Protocol (NTP)
TCP/UDP 123
End point mapper (epmap); NT RPC
TCP 135
NetBIOS name service
TCP/UDP 137
NetBIOS datagram service
UDP 138
NetBIOS session service
TCP 139
IMAP
TCP 143
SNMP
UDP 161
SNMP Trap
UDP 162
LDAP
TCP 389
TLS/SSL
TCP 443
Microsoft DS (NetBIOS service)
TCP/UDP 445
IKE; Internet Security Association and Key Management Protocol
TCP/UDP 500
UNIX Syslog
UDP 514
L2TP
UDP 1701
PPTP
TCP 1723
Sun NFS
TCP 2049
Microsoft Terminal Services
TCP 3389
PCAnywhere data
TCP 5631
PCAnywhere status
UDP 5632
ICMP protocol #
1
TCP protocol #
6
UDP protocol #
17
Generic Routing Encapsulation (GRE) protocol #
47
What is Generic Routing Encapsulation (GRE) used in?
PPTP connections
Authentication Header (AH) protocol #
50
Encapsulating Security Payload (ESP) protocol #
51