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CompTIA A+ 220-901 > TCP and UDP ports > Flashcards

TCP and UDP ports Flashcards

1
Q

What are the ways to direct information?

A

TCP

UDP

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2
Q

What is a socket in networking?

A

A port number combined with an IP address

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3
Q

Which port and transfer protocol is used for HTTP?

A

TCP

Port: 80

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4
Q

Which port and transfer protocol is used for HTTPS?

A

TCP

Port: 443

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5
Q

Which port and transfer protocol is used for DNS?

A

TCP and UDP

Port: 53

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6
Q

Which port and transfer protocol is used for Telnet?

A

TCP

Port: 23

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7
Q

Which port and transfer protocol is used for SSH?

A

TCP

Port: 22

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8
Q

Which port and transfer protocol is used for FTP?

A

TCP

Port: 21

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9
Q

Which port and transfer protocol is used for TFTP?

A

UDP

Port: 69

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10
Q

Which port and transfer protocol is used for SNMP?

A

UDP

Port: 161

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11
Q

Which port and transfer protocol is used for SMTP?

A

TCP

Port: 25

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12
Q

Which port and transfer protocol is used for POP3?

A

TCP

Port: 110

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13
Q

Which port and transfer protocol is used for IMAP?

A

TCP

Port: 143

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14
Q

Which port and transfer protocol is used for RDP?

A

TCP

Port: 3389

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15
Q

Which port and transfer protocol is used for SMB?

A

TCP
Ports: 137-139, 445
Uses UNC

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16
Q

Which port and transfer protocol is used for AFP?

A

TCP

Ports: 427, 548

17
Q

Which port and transfer protocol is used for LDAP?

A

TCP or UDP
Port: 389
Enables SSO

18
Q

What does TCP stand for?

A

Transmission control protocol

19
Q

What does UDP stand for?

A

User datagram protocol

20
Q

What are the features of TCP?

A 
Reliable
Connection-oriented
3 way handshake
Sequence numbers
Window size
Ack (acknowledgement)
21
Q

What are the features of UDP?

A

Unreliable
Connectionless
Simple header

22
Q

What is the command to see listening ports in windows?

A

netstat -an | find /i “listening”

23
Q

What is the command to see listening ports in osx?

A

lsof -iTCP -sTCP:LISTEN -n -p

24
Q

What is the command to see listening ports in linux?

A

netstat -l

CompTIA A+ 220-901 (20 decks)

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