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Cisco Network Fundamentals - 2

Subjects : cisco, it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. TCP header provides for






2. Dynamic ports fall into what category of port






3. Port 520 is?






4. Which protocol provides connectionless network layer services? IP - TCP - UDB or OSI?






5. What is the port range for dynamic or private ports






6. The three-way handshake performs what three functions?






7. Routes to remote networks with the associated next-hops can be manually configured on the router. What is the same for this type of routing?






8. Encapsulation occurs at all - some or none of the layers of the OSI model?






9. Determines how much data a sending host running TCP/IP can transmit before it must receive an acknowledgment






10. What is contained in the header of each segment or datagram?






11. During data transfer - What is the receiving host responsible for?






12. When an OSI Layer 4 PDU has been encapsulated at the network layer it is called a ______________.






13. Port 23 is?






14. Which protocol ensures more reliable delivery between applications - TCP or UDP?






15. What is the purpose of sequence numbers?






16. An example of a communication that sends a letter to someone without notifying the recipient in advance is called?






17. Port 443 is?






18. In networking terms - What is reliability?






19. Why is IP 'media independent'?






20. When the client end of the session has no more data to transfer - it sets the ___________ flag in the header of the segment? (Hint: three-letter acronym)






21. If a router needs to send a packet but doesn't know the next hop or destination network - what can it do?






22. Which protocol provides just the basic functions for efficiently delivering data pieces between appropriate applications - TCP or UDP?

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23. The router a network uses to send and receive messages beyond the network is called a ___________ router.






24. What is the purpose of TCP/UDP port numbers?






25. IP is designed or not designed to track and manage the flow of packets?






26. How does UDP keep track of sequence numbers?

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27. For a network layer packet to travel between hosts - it must be handed down to the _________________ layer - for another layer of encapsulation called framing - and then encoded and put onto the ____________ layer to be sent to the next router.






28. Port 194 is?






29. The value of the ACK number field is equal to the client ISN plus ___________ (number)?






30. SYN is?






31. On a particular network how would you determine the default gateway address for a host?






32. UDP stands for?






33. What two commands can be used to view a host's routing table?






34. What kinds of problems are caused by excessive broadcast traffic on a network segment?






35. What is the protocol number for UDP?






36. Port 110 is?






37. IP requires that each sending and receiving device have a __________ IP address.






38. What is the port range for well known ports






39. List three network applications that use UDP






40. At the transport layer - which of the following controls is used to keep a transmitting host from overflowing the buffers of a receiving host? Choose one: Best effort - encryption - flow control - congestion avoidance?






41. Ephermeral port is what type of port






42. Which is a connectionless protocol - UDP or TCP?






43. Which of the following is true about IP?

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44. Routers add routes for the connected networks to their ________________ .






45. When an IP packet is decapsulated - the information in the packet is handed to the upper or lower layers for delivery and processing?






46. TCP is a ________________ layer protocol.






47. What is a common device used to divide/break up a broadcast domain into smaller broadcast domains?






48. Which of the following are true about TCP and IP?

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49. UDP does or does not create a session?






50. What is the default DNS port number?






Can you answer 50 questions in 15 minutes?



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