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Media,Ports & Protocols > Ports & Protocols > Flashcards

Ports & Protocols Flashcards

Learn the comptia Network+ ports and protocols

1
Q

Telnet Port#

A

23

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2
Q

FTP port#

A

20,21

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3
Q

SFTP port#

A

22

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4
Q

TFTP port# protocol

A

69, UDP

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5
Q

SMTP port#

Secure SMTP

A

25

465

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6
Q

POP3 port#

Secure POP3

A

110

995

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7
Q

IMAP port#

IMAPS port#

A

143

993

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8
Q

RDP port#

A

3389

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9
Q

Secure Shell port#

A

22

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10
Q

HTTPS port#

A

443

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11
Q

NTP port# protocol

A

123 UDP

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12
Q

SMB port#

A

445

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13
Q

What ports can SMB also run on?

A

NetBIOS ports

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14
Q

DNS port# protocols

A

53 TCP/UDP

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15
Q

DHCP port# protocol

A

67/68 UDP

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16
Q

What protocol uses same ports as DHCP?

A

Bootstrap protocol

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17
Q

SNMPv1/2 ports# protocol

A

161 UDP 162 (Trap) UDP

18
Q

What port range is reserved for well-known port numbers and in which RFC are they defined?

A

0-1023, RFC3232

19
Q

In TCP, which port defines the virtual circuit?

A

the source port number (SP) of the transmitting host

20
Q

port number 389 is used for what protocol? What protocol types does it use?

A

LDAP, TCP/UDP

21
Q

Port#, and protocol types used for LDAPS (SSL)

A

636, TCP/UDP

22
Q

What is H.323 and what port# and protocol type does it use?

A

H.323 is similar to SIP and facilitates VoIP and videoconferencing over the internet. It uses TCP port 1720

23
Q

What is SSH?

A

SSH or Secure Shell, is a cryptographic protocol that’s mainly used to administer Unix/Linux/Network equipment

24
Q

RDP is used on Unix servers, true or false?

A

False. It’s used for connecting Microsoft Windows servers

25
Q

The SIP protocol sets up and transmits voice over IP calls. TRUE or FALSE?

A

False, SIP only sets up the call and it controls signalling. IT doesn’t transport the media stream.

26
Q

What does a SIP trunk do?

A

Connects VoIP PBX to the PSTN

27
Q

Name the SIP port#;s and protocol types

A

5060/5061 UDP/TCP

28
Q

What is the Linux equivalent of SMB?

A

Samba

29
Q

Ports are registered with which internet organization?

A

Internet Assigned Numbers Authority

30
Q

Name 4 main features of a connectionless protocol

A

1) NO STATE - No connection setup or connection tracking
2) NO GUARANTEE OF MESSAGE DELIVERY - Receipt of data is not acknowledged
Transmission is one-way
3) NO GUARANTEE OF ORDER DELIVERY - received data is not re-ordered if it arrives out of sequence.
4) NO CONGESTION CONTROL

31
Q

What does RTP stand for and what does it do?

A

Real-Time Transport Protocol. It’s apacket formatting standard for delivering audio and video over the internet.

32
Q

Name the RTP port#’s and protocol types

A

5004/5005 TCP/UDP

33
Q

What protocol works on TCP 2427/2727?

A

Media Gateway Control Protocol (MGCP)

34
Q

What is the DHCP DORA process?

A

DORA is the 4-step process a client takes to receive an IP address from a DHCP server.

1) Discover
2) Offer
3) Request
4) Acknowledge

35
Q

List the 5 key protocols (for CompTIA) and their port numbers that use UDP

A 
DNS 53
BOOTPS/DHCP 67,68
TFTP 69
NTP 123
SNMP 161
36
Q

What is the range of port numbers known as ephemeral port numbers used by clients as the source port?

A

49,152 - 65,535

37
Q

What is the size of the UDP header?

A

8bits

38
Q

What is the registered port number range?

A

1024 - 49,151

39
Q

What is the ephemeral port range?

A

49152–65535

40
Q

List the secure versions of the below email transport protocols, in order of port numbers with lowest first

Secure POP3
Secure SMTP
IMAPS

A

Secure SMTP - 465
IMAPS - 993
Secure POP - 995

41
Q

What are the protocols for 443 and 445?

A

443 - HTTPS

445 - SAMBA

Media,Ports & Protocols (5 decks)

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