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CompTIA A+ > First 10 > Flashcards

First 10 Flashcards

Memorize the first ten port numbers in messers course, and the protocols they access

1
Q

what are the port Numbers for FTP (File Transfer Protocol)?

A

tcp/20, tcp21

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2
Q

What is the port number for SSH (Secure Shell)?

A

tcp/22

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3
Q

What is the port number for telnet?

A

tcp/23

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4
Q

What is the port number for SMTP (Simple Mail Transfer Protocol)?

A

tcp/25

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5
Q

What is the port number(s) for DNS?

A

udp/53, tcp/53

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6
Q

What are the port numbers for DHCP?

A

udp/67, udp68

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7
Q

What is the port number for HTTP?

A

tcp/80

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8
Q

What is the port number for HTTPS?

A

tcp/443

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9
Q

What is the port number for POP3 (Post Office Protocol)?

A

tcp/110

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10
Q

What is the port number for IMAP4 (Internet Access Message Protocol) ?

A

tcp/143

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11
Q

What is the 20, 21 ports used for?

A

Sending and receiving files between systems

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12
Q

What is port 22 used for?

A

Encrypted Console Access (Secure Shell)

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13
Q

What is port 23 used for?

A

Insecure Console Access (telnet)

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14
Q

What is port 25 used for?

A

Transfer emails between servers

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15
Q

What is port 53 used for?

A

Convert domain names to IP addresses (DNS)

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16
Q

What are ports 67 and 68 used for?

A

Automate IP address configuration
(DHCP)

17
Q

What is port 110 used for?

A

Receive email into a email client
(POP3)

18
Q

What is port 143 used for?

A

A newer email client protocol
(IMAP)

19
Q

What is udp port 137 used for?

A

NetBIOS name service (register, remove, and find windows services by name)

20
Q

What is tcp port 139 used for?

A

NetBIOS session service (Windows connection oriented data transfer)

21
Q

what is tcp port 445 used for?

A

SMB (Windows file transfers and printer sharing)

22
Q

What is udp port 161 used for?

A

SNMP Query (Gather metrics and manage network devices)

23
Q

what is udp port 162 used for?

A

SNMP Trap (Receive alerts from network devices)

24
Q

What is tcp port 389 used for?

A

LDAP (Directory services)

25
Q

what is tcp port 3389 used for?

A

RDP (Graphical display of remote devices)

CompTIA A+ (2 decks)

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