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. Dynamic ports fall into what category of port






2. ACK is?






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






4. Port 520 is?






5. What is a broadcast domain?






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






7. In networking terms - What is reliability?






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

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






10. SYN is?






11. What is the purpose of the ToS field in the IPv4 header?






12. What four tasks does the network layer perform?






13. List three network applications that use UDP






14. What is the purpose of sequence numbers?






15. Port 23 is?






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






17. Port 8080 is?






18. Port 20 is?






19. What is the proper order of FIN sequence?






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. What are the transport layer's responsibilities?






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






23. Port 25 is?






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






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






26. MSN messenger uses TCP or UDP?






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






28. How does UDP keep track of sequence numbers?

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29. TCP header provides for






30. 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?






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






32. Port 443 is?






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






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






35. Why is IP 'media independent'?






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






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

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38. Port 110 is?






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






40. 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?






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






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

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43. How many bits are in an IPv6 address?






44. Which of the following are true about IP?






45. Ephermeral port is what type of port






46. MTU stands for ?






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






48. Port 194 is?






49. TCP is a ________________ layer protocol.






50. What is the proper order of SYN sequence?