applications that use services of transport layer

hello again.Im tyin up my revision for the 607 exam and again i have questions!

im am looking for a technote that explicity details applications such as SMTP SNMP and telnet etc that use the services of the transport layer and in particluar and very importantly which transport layer protocol they use such as SNMP uses UDP etc them questions always catch me out.

Is there any technotes on this site such as for net+ or does anyone know of a gud link?

or is anyone smart enough to just list them from their head here only trhe ones i need to know for 607

[/b]

Find more posts tagged with

Free for TechExams community: Cybersecurity salary guide

Compare cert salaries and plan your next career move

Button

Comments

dieublanc

I'm not sure if this answers your question but these are some of my notes from when I did Network+

http port # 80/tcp
ftp port # 21/tcp 20 for data
TFTP port # 69/UDP
SMTP port# 25/tcp
telnet port# 23/tcp
pop3 port # 110/tcp can be used w/or without SMTP
NNTP port # 119/tcp
SNMP port # 161
Gopher port # 70
UDP=user datagram protocol=connectionless. UDP opens ports entre 2 systems but no guarentee
FTP=app layer. Connection oriented file transfer. Tcp port 21 for control & port 20 to transfer data
TFTP=trivial. App layer. Connectionless file transfer. UDP port 69 no password
SMTP=app layer protocol 2 transfer email. TCP port 25 transfers email entre servers
Pop3/IMAP=when SMTP used 2 send email these are used to retrieve it. Pop3 accesses inbox only. IMAP=others (deleted, sent etc). App layer. Pop 3=tcp port 110 imap=tcp port 143
HTTP=app layer. TCP port 80. Transfers www docs etc.
Telnet=app layer. TCP port 23 terminal emulation user name & pw usually required
NTP=network time protocol. App layer. Synchronizes land & wans. UDP port

seth223uk

hey thanks that helps alot ur a star, i really should have gone for network+ before ccna but oh well its done now

thakns again

dieublanc

Hey if you get your CCNA no need for Network+ (unless you have an employer that doesn't know the difference!!!!!!)

Webmaster

Check out the following for a basic overview of some of them, and the second link for a couple of lines about SNMP.

www.techexams.net/technotes/networkplus/tcpipsuite.shtml

www.techexams.net/technotes/networkplus/networkservices.shtml