Port Numbers Flashcards

1
Q

TFTP

A

69

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2
Q

SSH

A

22

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3
Q

Telnet

A

23

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4
Q

SMTP

A

25; 465

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5
Q

TACACS+

A

49

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6
Q

DNS

A

53

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7
Q

HTTP

A

80

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8
Q

HTTPS

A

443

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9
Q

Kerberos

A

88

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10
Q

POP3

A

110; 995

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11
Q

IMAP

A

143; 993

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12
Q

SNMP

A

161; 162

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13
Q

RDP

A

3389

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14
Q

FTP

A

20; 21

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15
Q

SCP

A

22

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16
Q

DHCP

A

67; 68

17
Q

LDAP

A

389; 636

18
Q

Netbios

A

137; 138; 139

19
Q

SMB

A

445

20
Q

What ports are well-known ports?

A

Ports 0-1023

21
Q

What ports are known as registered ports?

A

Ports 1024-49151

22
Q

SIP

A

5060