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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. Are well known ports registered






2. What does segmentation provide to communications?






3. 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?






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






5. Port 25 is?






6. Port 69 is?






7. How many bytes of overhead do TCP segments carry? How many does UDP carry?






8. MTU stands for ?






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






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






11. SYN is?






12. MSN messenger uses TCP or UDP?






13. Dynamic ports fall into what category of port






14. UDP does or does not create a session?






15. What is the name of the process of removing the OSI Layer 2 information from an IP packet?






16. List three network applications that use TCP






17. Which of the following is true about IP?

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18. What is the port range for well known ports






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






20. Port 443 is?






21. In networking terms - What is reliability?






22. Why is IP 'media independent'?






23. What is the port range for Registered ports






24. Ports can be shared at the same time? (t/f)

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25. What are three key factors to consider when grouping hosts into a common network?






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






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

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28. Port 8080 is?






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






30. The three main features of routes in a routing table are?






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






32. TCP is a ________________ layer protocol.






33. 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.






34. What is the purpose of sequence numbers?






35. List three network applications that use UDP






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






37. Which is a connection-oriented protocol - TCP or UDP?






38. Why does TCP use a sequence number in the header?






39. What is the default DNS port number?






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






41. What is a broadcast domain?






42. 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?






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






44. What are the three basic characteristics of IPv4?






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






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






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






48. What is the netstat utility used for on a host?






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






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






Can you answer 50 questions in 15 minutes?



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