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CompTia 901 A+ > 2.4 Explain common TCP and UDP ports, protocols, and their purpose. > Flashcards

2.4 Explain common TCP and UDP ports, protocols, and their purpose. Flashcards

1
Q

What port does Domain Name System (DNS) use?

A

UDP 53

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2
Q

What protocol uses port TCP 443?

A

HTTPS

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3
Q

What are the individual units called in Lightweight Directory Access Protocol (LDAP)?

A

Leaf objects

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4
Q

What protocol uses port TCP 80?

A

HTTP

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5
Q

Which ports does Lightweight Directory Access Protocol (LDAP) use? (2)

A

TCP 389 / UDP 389

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6
Q

Which protocol uses port TCP 548?

A

Apple Filing Protocol (AFP)

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7
Q

What protocol uses port TCP 143?

A

IMAP4

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8
Q

Which protocol uses the X.500 standard?

A

Lightweight Directory Access Protocol (LDAP)

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9
Q

What is Remote Desktop Protocol (RDP)?

A

Connect to another computer remotely

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10
Q

What protocol uses TCP 20/21?

A

File Transfer Protocol (FTP)

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11
Q

What is the difference between TCP and UDP?

A

TCP sends an acknowledgment to confirm the receiving computer got the information

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12
Q

What other protocol does Apple Filing Protocol (AFP) use in conjunction?

A

Service Location Protocol (SLP)

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13
Q

What is the maximum port number?

A

65535

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14
Q

What ports does Server Message Block (SMB) use? (4)

A

UDP 137 / 138 / 139 & TCP 445

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15
Q

Why is UDP unreliable?

A

It just sends data with no acknowledgment

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16
Q

What ports does File Transfer Protocol use? (2)

A

TCP 20/21

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17
Q

What does POP3 and IMAP4 do?

A

Receive email

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18
Q

Where do you usually find a non-ephemeral port?

A

Servers or services

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19
Q

Which is a newer protocol POP3 or IMAP4?

A

IMAP4

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20
Q

What does Server Message Block (SMB) do?

A

Windows file transfers and print sharing

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21
Q

What service uses port UDP 53?

A

DNS

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22
Q

Is Telnet encrypted?

A

No

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23
Q

Which service uses UDP 67 / 68?

A

Dynamic Host Control Protocol (DHCP)

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24
Q

What is the standard for Lightweight Directory Access Protocol (LDAP)?

A

X.500 Directory Service

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25
What does SNMP do?
It gathers statistics from network devices
26
What is HTTP?
Web server communication
27
What is the broader groups called in Lightweight Directory Access Protocol (LDAP)?
Container objects
28
Which network type is considered unreliable?
UDP
29
What is it called when a port number is temporary?
Ephemeral
30
A standard for developing an electronic directory of people in an organization that is uploaded to a global registry accessible to anyone with Internet access.
What is X.500 Directory Service
31
What protocol uses port TCP 3389?
RDP
32
What protocol uses port TCP 110?
POP3
33
What is the protocol for Windows file transfers and print sharing?
Server Message Block (SMB)
34
Which File Transfer Protocol (FTP) protocol uses TCP 21?
Control
35
What kind of port do you find in servers or services?
Non-ephemeral
36
What service uses port UDP 161?
Simple Network Management Protocol (SNMP)
37
What protocol uses port TCP 25?
Simple Mail Transfer Protocol (SMTP)
38
What does SMTP do?
Sends emails between mail servers
39
What converts Human-Friendly Recognizable Names to IP addresses?
Domain Naming Service (DNS)
40
What port does POP3 use?
TCP 110
41
What Apple service uses Lightweight Directory Access Protocol (LDAP)?
OpenDirectory
42
What are leaf objects in Lightweight Directory Access Protocol (LDAP)?
Individual units
43
What is it called when a port number is permentant?
Non-ephemeral
44
What port does Secure Shell (SSH) use?
TCP 22
45
A Protocol for locating resources over a directory such as files, devices, individuals, & organizations over an IP network
Lightweight Directory Access Protocol (LDAP)
46
What service assign IP address automatically to your network?
Dynamic Host Control Protocol (DHCP)
47
What port does Apple Filing Protocol (AFP) use?
TCP 548
48
Which protocols receives email?
POP3 and IMAP4
49
What protocol populates a list of available devices?
Service Location Protocol (SLP)
50
Which network type is considered reliable?
TCP
51
Which protocol is web server communication without encryption?
HTTP
52
What protocol sends emails between mail servers?
Simple Mail Transfer Protocol (SMTP)
53
What port does Service Location Protocol (SLP) use? (2)
TCP/UDP 427
54
What kind of ports do you usually find in client workstation?
Ephemeral
55
What port does Simple Network Management Protocol (SNMP) use?
UDP 161
56
What does the Service Location Protocol (SLP) do?
Populates the list of available devices
57
What Window service uses Lightweight Directory Access Protocol (LDAP)?
Active Directory
58
Does File Transfer Protocol (FTP) need authentication?
Yes
59
What port does HTTPS use?
TCP 443
60
Which protocol is web server communication WITH encryption?
HTTPS
61
Which protocol uses port TCP 22?
Secure Shell (SSH)
62
What is a Dynamic Host Configuration Protocol (DHCP)?
Assigns IP addresses automatically to your network
63
What protocol uses port TCP 23?
Telnet
64
What does Apple Filing Protocol (AFP) do?
It helps transfer files between Mac devices
65
What is User Datagram Protocol (UDP)?
A connectionless protocol that does not require acknowledgment on the data it sends out
66
What port does HTTP use?
TCP 80
67
Why is TCP reliable?
It sends an acknowledgment (ACK) to make sure the other computer received the information
68
What is HTTPS?
Web server communication with encryption
69
What port does IMAP4 use?
TCP 143
70
What protocol gathers statistics from network devices?
Simple Network Management Protocol (SNMP)
71
A connectionless protocol that does not require acknowledgment on the data it sends out
What is User Datagram Protocol (UDP)?
72
Where do you usually find a ephemeral port?
Client workstations
73
What port does Simple Mail Transfer Protocol (SMTP) use?
TCP 25
74
What is Light Directory Access Protocol (LDAP)?
A Protocol for locating resources via the directory such as files, devices, individuals & organizations over an IP network
75
What does a Domain Name System (DNS) do?
it translates human-friendly computer hostnames into IP addresses
76
What is a non-ephemeral port?
Permanent port numbers
77
Which protocol helps transfer files between Mac devices?
Apple Filing Protocol (AFP)
78
Which Simple Network Management Protocol (SNMP) version added Encryption?
Version 3
79
Which protocol uses ports TCP 389 / UDP 389?
Lightweight Directory Access Protocol (LDAP)
80
What is Server Message Block (SMB) also called?
Common Internet File System (CIFS)
81
What are container objects in Lightweight Directory Access Protocol (LDAP)?
Used for broader groups
82
What protocol does Apple OpenDirectory use?
Lightweight Directory Access Protocol (LDAP)
83
What is X.500?
A standard for developing an electronic directory of people in an organization that is uploaded to a global registry accessible to anyone with Internet access.
84
What port does File Transfer Protocol (FTP) Control Mode use?
TCP 21
85
Why is UDP considered to be a connectionless protocol?
No virtual connection is established between two endpoints before the data transfer takes place.
86
What is a ephemeral port?
Temporary port number
87
What is the 4 things a TCP/UDP with IPv4 need?
1. Server 2. Client IP Address 3. Client Server 4. Client port number
88
What port does Telecommunication Network (Telnet) use?
TCP 23
89
What protocol uses ports TCP/UDP 427?
Service Location Protocol (SLP)
90
Which port does Remote Desktop Protocol (RDP) use?
TCP 3389
91
What is the ports used for DHCP? (2)
UDP 67 / 68
92
What is the difference between Secure Shell (SSH) and Telnet?
Secure Shell (SSH) is encrypted
93
What protocol does Windows Active Directory use?
Lightweight Directory Access Protocol (LDAP)

CompTia 901 A+ (25 decks)

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