"Deep" <mail2sukhdeep@gmail.com> writes:
> First of all, I'm sorry as I'm asking very basic ques. but I didnt
> find any satisfactory answer of it.
> I want to know which protocol we should use for voice data transfer
> and for FTP? Should it be TCP or UDP and also please me by
> telling the reason.

FTP uses TCP. See RFC 959 (for starters).

Voice data typically uses UDP, though other mechanisms are possible.
You'll need to be more specific there, because "voice data transfer"
isn't the name of a particular protocol or implementation.

Good luck on the test. :-/

--
James Carlson, Solaris Networking <james.d.carlson@sun.com>
Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677