Common Port Numbers Flashcards
Port numbers that you will be asked to identify and memorize while on the job.
1
Q
80
A
HTTP
2
Q
443
A
HTTPS
3
Q
21
A
FTP
4
Q
22
A
SSH
5
Q
25
A
SMTP (Simple Mail Transfer Protocol)
6
Q
110
A
POP3 (Post Office Protocol v3)
7
Q
143
A
IMAP (Internet Message Access Protocol)
8
Q
3389
A
RDP (Remote Desktop Protocol)
9
Q
53
A
DNS (Domain Name System)
10
Q
445
A
SMB/CIFS (Sever Message Block/Common Internet File System)
11
Q
What port number is HTTP?
A
80
12
Q
What port number is HTTPS?
A
443
13
Q
What port number is FTP?
A
21
14
Q
What port number is SSH?
A
22
15
Q
What port number is SMTP?
A
25
16
Q
What port number is POP3?
A
110
17
Q
What port number is IMAP?
A
143
18
Q
What port number is RDP?
A
3389
19
Q
What port number is DNS?
A
53
20
Q
What port number is SMB/CIFS?
A
445
21
Q
What does SMTP stand for?
A
Simple Mail Transfer Protocol
22
Q
What does IMAP stand for?
A
Internet Message Access Protocol
23
Q
What does RDP stand for?
A
Remote Desktop Protocol
24
Q
What does SMB stand for?
A
Server Message Block
25
What does CIFS stand for?
Common Internet File System
26
23
Telnet
27
389
LDAP (Lightweight Directory Access Protocol)
28
636
LDAPS (Lightweight Directory Access Protocol Secure)
29
1720
H.323 (used for multimedia communications)
30
465
SMTPS (Simple Mail Transfer Protocol Secure)
31
993
IMPAS (Internet Message Access Protocol Secure)
32
995
POP3S (Post Office Protocol 3 Secure)
33
2049
NFS (Network File System. used for Linux/Unix environments)
34
What port number is Telnet?
23
35
What port number is LDAP?
389
36
What port number is LDAPS?
636
37
What port number is H.232?
1720
38
What port number is SMTPS?
463
39
What port number is IMPAS?
993
40
What port number is POP3S
995
41
What port number is NFS?
2049
42
8080
HTTP (alternative HTTP port)
43
What is the alternative HTTP port?
8080
