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






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






3. Are well known ports registered






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






5. Port 20 is?






6. List three network applications that use UDP






7. 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?






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






9. What are the transport layer's responsibilities?






10. SYN is?






11. List three network applications that use TCP






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






13. What four tasks does the network layer perform?






14. What does segmentation provide to communications?






15. MTU stands for ?






16. TCP header provides for






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






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






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

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






21. Dynamic ports fall into what category of port






22. 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.






23. What is the default DNS port number?






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






25. Port 443 is?






26. What is a broadcast domain?






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






28. What is the proper order of SYN sequence?






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






30. Ephermeral port is what type of port






31. Port 194 is?






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






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






34. How many bits are in an IPv4 address?






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






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






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






38. What is the port range for Registered ports






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






40. MSN messenger uses TCP or UDP?






41. Port 520 is?






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






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






44. In networking terms - What is reliability?






45. Port 69 is?






46. Why is IP 'media independent'?






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






48. 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?






49. Which of the following are true about IP?






50. How does UDP keep track of sequence numbers?

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