1. At which layer of the OSI model does FTP operate?

 
 
 
 

2. Which of these layers is represented by data?

 
 
 
 

3. What layer of the TCP/IP or DOD model is equivalent to the Transport layer of the OSI model?

 
 
 
 

4. What are the two sublayers of the Data-link layer?

 
 
 
 

5. Which OSI layer converts data packets from the Data Link layer into electrical signals?

 
 
 
 

6. Which OSI layer is represented in by bits?

 
 
 
 
 
 

7. Which OSI layer is represented by packets?

 
 
 
 
 
 

8. At which layer of the OSI model does DHCP operate?

 
 
 
 

9. At which layer of the OSI model does SNMP operate?

 
 
 
 

10. At which layer of the OSI model does UDP operate?

 
 
 
 

11. Which OSI layer is represented by packets?

 
 
 
 

12. Which protocol uses TCP port 23?

 
 
 
 
 

13. Which OSI layer is represented by segments?

 
 
 
 
 
 

14. Which of the following protocols uses TCP?

 
 
 

15. Which protocol uses TCP port 80?

 
 
 
 
 

16. Which protocol uses UDP port 69?

 
 
 
 
 

17. Which of the following protocols uses UDP?

 
 
 
 
 

18. What is the order of encapsulation?

 
 
 
 

19. At which layer of the OSI model does SMTP operate?

 
 
 
 

20. Which of the following protocol uses both TCP and UDP?

 
 
 
 
 

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