Answer:
Digital Signature
Explanation:
Digital Signatures are used in electronic messages to verify the sender's ıdentity. It is a online signature and highly secure way of proving identity.
The Signature is <em>encrypted</em> and can be decoded using <em>public-key</em> .
Digital signatures are certificated uniquely from accredited providers, encrypted and can be validated by certificate authorities.
Messages with digital signatures prove that the message sent by the owner of the signature and didn't changed on the way.
True a pdf is a file format that provides a electronic image of a document and it can be viewed, printed and electronically transmitted.
In what topic ?? Please explain more
Answer:
c. Messages flowing to the client typically use a source TCP port number of 80.
d. Messages flowing to the server typically use TCP.
Explanation:
When fred open the web browser and start a connection to the www.certskills.com website.Two things happens from the mentioned things
1.Messages that are going to the server are use TCP(Transmission Control Protocol).
2.Message goes to the client uses port number 80 that is of TCP used for transferring web pages.
Because the port number 80 is reserved for the HTTP used for transferring web pages that uses TCP protocol.
