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Network+ > 1.1 - Ports and Protocols > Flashcards

1.1 - Ports and Protocols Flashcards

Explain the purposes and uses of ports and protocols

1
Q

What is SSH?

A

Secure Shell

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2
Q

What Port # is SSH?

A

TCP 22

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3
Q

What does SSH do?

A

It is a public key cryptograph (encryption)

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4
Q

What is DNS?

A

Domain Name System

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5
Q

What Port # is DNS?

A

TCP/UDP 53

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6
Q

What does DNS do?

A

Address translation

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7
Q

What is SMTP?

A

Simple Main Transfer Protocol

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8
Q

What Port # is SMTP?

A

TCP/UDP 25

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9
Q

What does SMTP do?

A

Sending e-mails

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10
Q

What is SFTP?

A

Secure File Transfer Protocol

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11
Q

What Port # is SFTP?

A

TCP 22

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12
Q

What is FTP?

A

File Transfer Protocol

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13
Q

What Port # is FTP?

A

TCP 20,21

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14
Q

What is TFTP?

A

Trivial File Transfer Protocol

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15
Q

What Port # is TFTP?

A

UDP 69

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16
Q

What does TFTP do?

A

Lighter, faster, less secure FTP

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17
Q

What is TELNET?

A

Command line interface for communication with a remote device or server

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18
Q

What Port # is TELNET?

A

TCP 23

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19
Q

What is DHCP?

A

Dynamic Host Configuration Protocol

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20
Q

What Port # is DHCP?

A 
UDP 67 (destination)
UDP 68 (client)
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21
Q

What does DHCP do?

A

Client configuration of a TCP/IP network

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22
Q

What is HTTP?

A

Hypertext Transfer Protocol

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23
Q

What Port # is HTTP?

A

TCP 80

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24
Q

What does HTTP do?

A

Client server method where client uses Uniform Resource Locator (URL)

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25
Q

What is HTTPS?

A

Hypertext Transfer Protocol Secured

26
Q

What Port # is HTTPS?

A

TCP 443

27
Q

What does HTTPS do?

A

Utilize SSL (Secure Socket Layer) or TLS (Transport Layer Security) to encrypt HTTP

28
Q

What is SNMP?

A

Simple Network Management Protocol

29
Q

What Port # is SNMP?

A

UDP 161

30
Q

What does SNMP do?

A

Monitor and configure network nodes such as printers, hosts, routers, and servers

31
Q

What is RDP?

A

Remote Desktop Protocol

32
Q

What Port # is RDP?

A

TCP/UDP 3389

33
Q

What does RDP do?

A

Allows a client to control another client

34
Q

What is NTP?

A

Network Time Protocol

35
Q

What Port # is NTP?

A

UDP 123

36
Q

What does NTP do?

A

Simply put; tells the internet what time it is

37
Q

What is SIP?

A

Session Initiated Protocol

38
Q

What Port # is SIP?

A

TCP/UDP 5060, 5061

39
Q

What does SIP do?

A

VoIP and Multimedia

40
Q

What is SMB?

A

Server Message Block

41
Q

What Port # is SMB?

A

TCP/UDP 445

42
Q

What is POP?

A

Post Office Protocol

43
Q

What Port # is POP?

A

TCP 110

44
Q

What does POP do?

A

Receiving e-mails (POP3)

45
Q

What is IMAP?

A

Internet Message Access Protocol

46
Q

What Port # is IMAP?

A

TCP 143

47
Q

What does IMAP do?

A

E-mail receiving

48
Q

What is LDAP?

A

Lightweight Directory Access Protocol

49
Q

What Port # is LDAP?

A

TCP/UDP 389

50
Q

What does LDAP do?

A

Phonebook for network services

51
Q

What is LDAPS?

A

Lightweight Directory Access Protocol Secured

52
Q

What Port # is LDAPS?

A

TCP/UDP 636

53
Q

What Port # is H.323?

A

TCP 1720

54
Q

What does H.323 do?

A

Point-to-point and multi-point VoIP, video conferencing

55
Q

What is ICMP?

A

Internet Control Message Protocol

56
Q

What does ICMP do?

A

On the Network Layer of OSI, reports success or failure of packet delivery

57
Q

What is UDP?

A

User Datagram Protocol

58
Q

What does UDP do?

A

Unreliable, connectionless delivery

59
Q

What is TCP?

A

Transmission Control Protocol

60
Q

What does TCP do?

A

Addresses reliability issue of IP

61
Q

What is IP?

A

Internet Protocol

62
Q

What does IP do?

A

Assigns source and destination to packets

Network+ (19 decks)

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