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






2. MTU stands for ?






3. Why is IP 'media independent'?






4. UDP stands for?






5. In networking terms - What is reliability?






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






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






8. What are the transport layer's responsibilities?






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






10. Port 110 is?






11. How many bits are in an IPv4 address?






12. Port 443 is?






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






14. Port 520 is?






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






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






17. What is the default DNS port number?






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






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

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






21. What is the port range for Registered ports






22. Which of the following are true about IP?






23. Ephermeral port is what type of port






24. TCP header provides for






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






26. What information does a router need to successfully forward packets?






27. Port 20 is?






28. MSN messenger uses TCP or UDP?






29. 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?






30. Which of the following are true about network layer encapsulation?






31. What four tasks does the network layer perform?






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






33. Port 69 is?






34. What is the proper order of FIN sequence?






35. List three network applications that use TCP






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






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






38. What is the purpose of sequence numbers?






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






40. What is a broadcast domain?






41. What is the port range for well known ports






42. Port 194 is?






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

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44. ACK is?






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






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






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






48. List three network applications that use UDP






49. 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)






50. How many bits are in an IPv6 address?