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IT Port Numbers > Important Port Numbers for 220-1001 A+ Core 1 > Flashcards

Important Port Numbers for 220-1001 A+ Core 1 Flashcards

1
Q

20

A

FTP — File Transfer Protocol

data transfer
TCP

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2
Q

21

A

FTP — File Transfer Protocol

control
TCP

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3
Q

22

A

SSH — Secure Shell

used for secure logins, file transfers (SFTP),
port forwarding
TCP

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4
Q

23

A

Telnet

used to access remote devices with no encryption
TCP

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5
Q

25

A

SMTP — Simple Mail Transfer Protocol

used for sending email
TCP

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6
Q

465

A

SMTP — Simple Mail Transfer Protocol

used for sending email

port is secure using SSL
TCP

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7
Q

587

A

SMTP — Simple Mail Transfer Protocol

used for sending email

port is secure using TLS
TCP

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8
Q

53

A

DNS — Domain Name System

translates domain names to IP addresses
TCP/UDP

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9
Q

67

A

DHCP — Dynamic Host Configuration Protocol

used to assign IP addresses to network hosts
Client (68) communicates to Server (67)
UDP

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10
Q

68

A

DHCP — Dynamic Host Configuration Protocol

used to assign IP addresses to network hosts
Server (67) communicates to Client (68)
UDP

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11
Q

69

A

TFTP — Trivial File Transfer Protocol

used for sending a file from the server to the client
UDP

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12
Q

80

A

HTTP — Hypertext Transfer Protocol
standard for communication on the web,
used to render pages in web browsers
TCP/UDP

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13
Q

443

A

HTTPS — Secure Hypertext Transfer Protocol

secured communication on the web SSL/TLS
TCP

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14
Q

110

A

POP3 — Post Office Protocol 3

used for receiving email
TCP

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15
Q

995

A

POP3 — Post Office Protocol 3

used for receiving email

port is secure TLS/SSL
TCP

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16
Q

123

A

NTP - Network Time Protocol

enables switches, routers, firewalls, servers,
and workstations to determine and synchronize the clocks for each device

17
Q

137

A

NetBIOS/NetBT — Network Basic Input Output System

allows applications on different computers to
communicate within a local area network (LAN)
Name Service

TCP/UDP

18
Q

139

A

NetBIOS/NetBT — Network Basic Input Output System

allows applications on different computers to
communicate within a local area network (LAN)
Session Service

TCP/UDP

19
Q

138

A

NetBIOS/NetBT — Network Basic Input Output System

allows applications on different computers to
communicate within a local area network (LAN)
Datagram Service

TCP/UDP

20
Q

143

A

IMAP — Internet Message Access Protocol

used for receiving email
TCP

21
Q

993

A

IMAP — Internet Message Access Protocol

used for receiving email

port is secure SSL
TCP

22
Q

161

A

SNMP — Simple Network Management Protocol

used to send and receive
network management messages
Agent for Sending and Receiving
UDP

23
Q

162

A

SNMP — Simple Network Management Protocol

used to send and receive
network management messages
Management for Receiving Traps
TCP/UDP

24
Q

389

A

LDAP — Lightweight Directory Access Protocol

used to access a directory on network objects
TCP/UDP

25
Q

636

A

LDAPS - Lightweight Directory Access Protocol Secure

used to access a directory on network objects over SSL
TCP/UDP

26
Q

445

A
  • *SMB — Server Message Block**
  • *(CIFS - Common Internet File System)**

provides shared access to files, printers, and
serial ports on a network
TCP

27
Q

548

A

AFP — Apple Filing Protocol

used for Apple file services
TCP

28
Q

3389

A

RDP — Remote Desktop Protocol

used to connect to remote computers
TCP/UDP

29
Q

990 or 21

A

FTPS - File Transfer Protocol over SSL

FTPS requires a server certificate for SSL authentication through user ID and password.
Requires port 21 or 990 as command and control;
and a range of ports 2000 through 2500.

30
Q

49

A

TACACS

31
Q

88

A

Kerberos

32
Q

989, 990

A

FTPS
File Transfer Protocol over SSL/TLS

33
Q

1433

A

Microsoft SQL Server

34
Q

1723

A

PPTP
Point-to-Point Tunneling Protocol

35
Q

1701

A

L2TP
Layer 2 Tunneling Protocol - UDP

36
Q

1812

A

RADIUS

IT Port Numbers (1 decks)

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