2.1a - Common Network Ports Flashcards Preview

CompTIA A+ 220-1001 Flashcards - Professor Messer > 2.1a - Common Network Ports > Flashcards

Flashcards in 2.1a - Common Network Ports Deck (29)
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1

What is FTP?

File Transfer Protocol

Sends and receives files between systems

2

What are the FTP (File Transfer Protocol) tcp/ ports (active and control modes)?

tcp/20 (active mode data), tcp/21 (control)
•Transfers files between systems

3

What is SSH?

Secure Shell
Encrypted console access


Encrypted communication link
• Looks and acts the same as Telnet

4

What is the SSH TCP Port?

tcp/22

5

What is Telnet?

Telecommunication Network

Insecure console access

6

What is the Telnet TCP port?

tcp/23

7

What is SMTP

Simple Mail Transfer Protocol
•Transfer email between mail servers
• Used to send mail from a device to a mail server
• Commonly configured on mobile devices
and email clients

8

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

tcp/25

9

What is DNS?

Domain Name System
•Convert domain names to IP addresses

10

What is the UDP port for the DNS?

udp/53

11

What is HTTP and HTTPS?

HTTP - Web server communica

HTTPS - Web server communicaCon with encrypCon

12

What is the POP3 tcp port?

tcp/110

13

What is the IMAP4 tcp port?

tcp/143

14

What is RDP and it's key attributes?

Remote Desktop Protocol
• Share a desktop from a remote location
• Remote Desktop Services on many Windows versions
• Can connect to an entire desktop or just an application
• Clients for Windows, macOS, Linux, Unix,
iPhone, Android, and others

15

What is the RDP (remote desktop protocol) tcp port?

tcp/3389

16

What is SMB and what are it's key attributes?

Server Message Block
Protocol used by Microsoft Windows
• File sharing, printer sharing
• Also called CIFS (Common Internet File System)

17

What is SMB's tcp port?

tcp/443

18

What is AFP and it's key attributes?

Apple Filing Protocol
• File services in macOS
• File management
• Copy, move, delete files
• Works with SLP (Service Location Protocol)
• Populates the list of available devices

19

What are AFP's (Apple Filing Protocol) key ports?

File services in macOS - tcp/548

Works with SLP (Service Location Protocol)

20

What is DHCP and it's key attributes?

Dynamic Host Configuration Protocol
• Automated configuration of IP address, subnet mask
and other options
• Requires a DHCP server
• Server, appliance, integrated into a SOHO router, etc.

• Dynamic / pooled
• IP addresses are assigned in real-time from a pool
• Each system is given a lease and must renew
at set intervals

• DHCP reservation
• Addresses are assigned by MAC address in the DHCP server
• Quickly manage addresses from one location

21

What are the key port used by DHCP?

udp/67
udp/68

22

What is LDAP and it's key attributes?

• Store and retrieve information in a network directory
• Commonly used in Microsoft Active Directory

23

What is the LDAP tcp port?

tcp/389

24

What is SNMP and what are it's key attributes?

Simple Network Management Protocol
• Gather statistics from network devices

SNMP v3 – A secure standard
• Message integrity
• Authentication, encryption

25

What are SNMP's ports for Queries and Traps?

Queries: udp/161
Traps: udp/162

26

What is HTTP's tcp port?

tcp/80

27

What is HTTPS tcp port?

tcp/443

28

What are NetBIOS's three variation's ports?

• udp/137 - NetBIOS name services (nbname)
• udp/138 - NetBIOS datagram service (nbdatagram)
• tcp/139 - NetBIOS session service (nbsession)

29

What is SLP?

Service Location Protocol
• Works AFP to find Mac OS services by name