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Port Numbers Flashcards

1
Q

What numbers can ports be?

A

0 - 65,535

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2
Q

Ports 0 to 1,023. These ports are assigned by the IANA.

A

Well-known ports

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3
Q

IANA stands for

A

Internet Assigned Numbers Authority

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4
Q

Ports 1,024 to 49,151, usually assigned to proprietary protocols

A

Registered ports

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5
Q

Ports 49,152 to 65,535, can be used with any application without being registered with IANA

A

Dynamic/Private ports

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6
Q

The protocol used to transfer files from host to host

A

FTP

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7
Q

FTP

A

21
TCP

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8
Q

SSH, SCP, and SFTP

A

22
TCP/UDP

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9
Q

A protocol used to remotely administer network devices and systems

A

SSH

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10
Q

A protocol used for secure copy

A

SCP

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11
Q

A protocol used for secure FTP

A

SFTP

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12
Q

Telnet

A

23
TCP/UDP

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13
Q

An unencrypted protocol used to remotely administer network devices (should not be used)

A

Telnet

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14
Q

SMTP

A

25
TCP

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15
Q

A protocol used to send email over the internet

A

SMTP

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16
Q

DNS

A

53
TCP/UDP

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17
Q

A service used to resolve hostnames to IPs and IPs to hostnames

A

DNS

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18
Q

TFTP

A

69
UDP

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19
Q

A simplified version of FTP to put a file on a remote host, or get a file from a remote host

A

TFTP (Trivial FTP)

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20
Q

HTTP

A

80
TCP

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21
Q

A protocol used to transmit web page data to a client for unsecured web browsing

A

HTTP

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22
Q

Kerberos

A

88
TCP/UDP

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23
Q

A protocol used for network authentication using a system of tickets within a Windows domain

A

Kerberos

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24
Q

POP3 (unencrypted)

A

110
TCP

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25
A protocol used to receive email from a mail server
POP3
26
NNTP
119 TCP
27
A protocol used to transport Usenet articles
NNTP
28
NNTP stands for
Network News Transfer Protocol
29
FTP stands for
File Transfer Protocol
30
SSH stands for
Secure Shell
31
SCP stands for
Secure Copy
32
SFTP stands for
Secure FTP
33
SMTP stands for
Simple Mail Transfer Protocol
34
DNS stands for
Domain Name Service
35
TFTP stands for
Trivial FTP
36
HTTP stands for
Hyper Text Transfer Protocol
37
POP3 stands for
Post Office Protocol v3
38
RPC/DCOM-scm
135 TCP/UDP
39
A protocol used to locate DCOM ports to request a service from a program on another computer on the network
RPC/DCOM-scm
40
RPC/DCOM-scm stands for
Remote Procedure Call/DCOM-scm
41
NetBIOS
137, 138, 139 TCP/UDP
42
A protocol used to conduct name querying, sending of data, and other functions over a NetBIOS connection
NetBIOS
43
IMAP stands for
Internet Message Access Protocol
44
A protocol used to receive email from a mail server with more features than POP3
IMAP
45
IMAP
143 TCP
46
SNMP
161 UDP
47
SNMP stands for
Simple Network Management Protocol
48
A protocol used to remotely monitor network devices
SNMP
49
SNMPTRAP
162 TCP/UDP
50
A protocol used to send Trap and InformRequests to the SNMP Manager on a network
SNMPTRAP
51
LDAP (unencrypted)
389 TCP/UDP
52
A protocol used to maintain directories of users and other objects
LDAP
53
LDAP stands for
Lightweight Directory Access Protocol
54
HTTPS
443 TCP
55
A protocol used to transmit web page data to a client over an SSL/TLS encrypted connection
HTTPS
56
SMB
445 TCP
57
SMB stands for
Server Message Block
58
A protocol used to provide shared access to files and other resources on a network
SMB
59
SMTPS
465 or 587 TCP
60
A protocol used to send email over the internet with an SSL and TLS secured connection
SMTPS
61
SMTPS stands for
Simple Mail Transfer Protocol Secure
62
Syslog
514 UDP
63
A protocol used to conduct computer message logging, especially for routers and firewall logs
Syslog
64
LDAPS
636 TCP/UDP
65
A protocol used to maintain directories of users and other objects over an encrypted SSL/TLS connection
LDAPS
66
LDAPS stands for
Lightweight Directory Access Protocol Secure
67
iSCSI
860 TCP
68
A networking standard used for linking data storage facilities over IP. Commonly used in SANs.
iSCSI
69
iSCSI stands for
Internet SCSI (Small Computer System Interface)
70
FTPS
989 and 990 TCP
71
FTPS stands for
File Transfer Protocol Secure
72
A protocol used to transfer files from host to host over an encrypted connection
FTPS
73
IMAP4 with SSL/TLS
993 TCP
74
A protocol used to receive email from a mail server over an SSL/TLS encrypted connection (Not POP3S)
IMAP4 with SSL/TLS
75
POP3S
995 TCP
76
A protocol used to receive email from a mail server using an SSL/TLS encrypted connection (not IMAP4 with SSL/TLS)
POP3S
77
Ms-sql-s
1433 TCP
78
Ms-sql-s stands for
Microsoft SQL server
79
A server used to receive SQL database queries from clients
Ms-sql-s
80
RADIUS (alternative)
1645 (authentication and authorization) and 1646 (accounting) UDP
81
RADIUS stands for
Remote Authentication Dial-In User Service
82
A protocol used for authentication, authorization, and accounting (AAA)
RADIUS
83
RADIUS (standard)
1812 (authentication and authorization) and 1813 (accounting) UDP
84
FCIP
3225 TCP/UDP
85
FCIP stands for
Fibre Channel IP
86
A protocol used to encapsulate Fibre Channel frames within TCIP/IP packets
FCIP
87
iSCSI Target
3260 TCP
88
A listening port for iSCSI targeted devices when linking data storage facilities over IP
iSCSI Target
89
RDP stands for
Remote Desktop Protocol
90
A protocol used to remotely view and control other Windows systems via a GUI
RDP
91
RDP
3389 TCP/UDP
92
Diameter
3868 TCP
93
A more advanced AAA protocol that is a replacement for RADIUS
Diameter
94
Syslog over TLS
6514 TCP
95
A protocol used to conduct computer message logging, especially for routers and firewall logs, over a TLS encrypted connection
Syslog over TLS
96
L2TP
1701 UDP
97
L2TP stands for
Layer 2 Tunnel Protocol
98
A protocol used as an underlying VPN protocol, but has no inherent security
L2TP
99
PPTP
1723 TCP/UDP
100
PPTP stands for
Point-to-Point Tunneling Protocol
101
An underlying VPN protocol with built-in security
PPTP

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