Ports for 1101 Flashcards
Ports needed for comptia A+ 1101 from Prof Messer
T or F
Most servers use Ephemeral port?
False
NON-Ephemeral
Port numbers are for Security or Communication?
Communication
Are TCP and UDP ports numbers the same
No
What is a Well-Known port number
Client and server need to match to communicate
Port numbers are important for firewalls because?
There is port- based security that has to have mathing ports
FTP
File Transfer Protocol
Port number for FTP
TCP/20 (active mode data)
TCP/21 (control)
How is FTP Authenticated
Username and Password
What features can FTP do
List, add, delete, etc
What does SSH stand for
Secure Shell
SSH port number?
TCP/22
Is SSH protected?
Yes
Which is encrypted SSH or Telnet?
SSH
What does Telnet stand for?
Telecommunication Network
What is port number 23
Telnet
What is the use of Telnet?
Gives console or terminal access to a device, text base front end. communicate at the command line
is Telnet safe communication?
No, it is in-the-clear. Not the best choice for production systems
When should you use Telnet?
Only when SSH isnt availible, SSH is encrypted.
What does SMTP Stand for?
Simple Mail Transfer Protocol
Port Number for SMTP
TCP/25
Difference between SMTP and other email protocols?
SMTP is when you SEND email, from phone to server
other protcols IMAP/POP3 are recieving
What does DNS stand for?
Domain Name System
What is the purpose of DNS
Converts names to IP addresses
Port number for DNS
UDP/53
T or F
There are multiple DNS servers as they are critical
True
What does DHCP mean?
Dynamic Host Configuration Protocol
Port number for HTTP?
80
