adspace
How many layers are there in OSI ? Why is it called OSI model ?
Answer Posted / rammu
7 Layers are there in OSI.
Layer 7- Application
Layer 6- Presentation
Layer 5- Session
Layer 4- Transport
Layer 3- Network
Layer 2- Data Link
Layer 1- Physical
It is called OSI because it is Open System Interconnection
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
1. What ports does FTP traffic travel over? 2. What ports does mail traffic utilize? 3. What ports do HTTP and HTTPS use? 4. Why is NTP required in an NFS network? 5. Name some common mal software on the server side 6. What is CPAN? How do you access it? 7. What is PEAR? 8. What advantages does mod_perl have over a perl CGI? 9. What is required to do SSL in Apache 1.x? 10. What is Tcl? 11. What is a servlet engine/container? 12. What is BIND? 13. Name the steps to setup a slave zone in BIND 14. Name the steps to setup a primary zone in BIND 15. What commands would you use under Solaris or Linux to modify/view an LDAP tree?
What is your most recent experience with VERTAS backup software?
What do you understand by the term ‘structured cabling’. State the main rules that should be used when installing a cable. 31. Show that maximum cabling area for LAN for horizontal cabling runs is approximately 200m.