1. Which OSI layer is represented by packets?

 
 
 
 

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

 
 
 
 

3. Which protocol uses UDP port 69?

 
 
 
 
 

4. Which of the following protocols uses UDP?

 
 
 
 
 

5. Which of the following protocols uses TCP?

 
 
 

6. Which protocol uses TCP port 23?

 
 
 
 
 

7. Which of these layers is represented by data?

 
 
 
 

8. Which OSI layer is represented in by bits?

 
 
 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Which protocol uses TCP port 80?

 
 
 
 
 

12. Which OSI layer is represented by segments?

 
 
 
 
 
 

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

 
 
 
 

14. Which OSI layer provides logical addressing?

 
 
 
 

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

 
 
 
 
 

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

 
 
 
 

17. Which OSI layer is represented by packets?

 
 
 
 
 
 

18. At which layer of the OSI model does DNS operate?

 
 
 
 

19. What is the order of encapsulation?

 
 
 
 

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

 
 
 
 

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