Handouts Flashcards
What is the use of a unrouteable IP address?
Unroutable address provides more security to the network
What is safe request method?
When only Get And Head retrieve data.
What is X.509 certificate?
It binds the value of a public key to identify of the person, device, or service that holds correspinding private key
How does a Certificate Autherity(CA) work?
Digital certificates are issued by CA’s that must validate the indentu of the certificates holder vefore certificate is used or issued.
What is a certificate Authority(CA)?
A trusted entity that issues documents that verify entitys identity on the internet. These are essential part of secure communication
How do you become a Certificate Authority(CA)?
Pay a company to or generate a self signed one.
What is the difference between RFC 114 and RFC 959
RC 114 is the first of the RFC’s to be created.
What is FTP Passive mode?
When the client establishes both channels. In that case the servers tells the client which port should be used for the data channel
When is FTP passive mode used?
Passive mode is used when the FTP server is not able to establish the data channel.
What is FTP Active mode>
When the client establishes the command but the server establishes the data channel
POP3 VS IMAP
POP3 deletes emails from the server while IMAP allows you to use emails from multiple devices.
What does DOM stand for?
Document Object Model
What kind of structure does DOM use?
Tree Structure
DHCP Meaning?
Dynamic Host Configuration Protocol
What happens when a host requests an IP address from a DHCP server?
Client broadcasts to everyone that is is looking for an address.
Server responds with address offer
Client requests address from DHCP server
DHCP responds to request with a acknowledgement.
