Multicast
------------------------------------
Oh a document, I do not believe that you have type on images, but if you were to type a text in a app called PicsArt and saved it and then put it onto the document over the picture it would work.
Answer:
It will bring more verstality in his website. He will be able to define tags.
Explanation:
XML allows to define your own tags. You can bring semantics into your website which make data browsing easier.
Answer:
Data is encrypted on SSH
Explanation:
Telnet and SSH both are the networking protocols. These protocol are used for the security of data. In telnet data is sent over the link without any encryption. That is the reason, in telnet protocol data is less secure.
In SSH (Security Shell) protocol data has been encrypted before transmission. The encryption of data make it more secure between transmitter and receiver.
So the true statement is that, SSH has data encryption.