Test your basic knowledge |

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. Port 443 is?






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






3. Port 20 is?






4. What four tasks does the network layer perform?






5. Port 23 is?






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






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






8. In networking terms - What is reliability?






9. What is a broadcast domain?






10. Name the private address blocks






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






12. What is the purpose of sequence numbers?






13. Port 25 is?






14. How does UDP keep track of sequence numbers?

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15. ACK is?






16. 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?






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






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






19. How many bits are in an IPv6 address?






20. What is the protocol number for UDP?






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






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






23. What is the proper order of SYN sequence?






24. Which characteristics are part of TCP? Pick two: Reliable - connectionless - no flow control - resends anything not received?






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






26. What is the port range for well known ports






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






28. Port 110 is?






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






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






31. What does segmentation provide to communications?






32. Why is IP 'media independent'?






33. Pieces of information about a route that a routing table contains






34. TCP is a ________________ layer protocol.






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






36. List three network applications that use TCP






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






38. UDP does or does not create a session?






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






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






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






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. TCP header provides for






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

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45. 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)






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






47. End systems use port numbers to select the proper application. What is the lowest port number that can be dynamically assigned by the host system? 1 - 128 - 256 or 1024?






48. Which of the following are true about static and dynamic routing?






49. Which of the following is true about IP?

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50. Which of the following are not functions of the network layer?