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 the name of the process of removing the OSI Layer 2 information from an IP packet?






2. Which of the following is true about IP?

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






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






5. 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.






6. Name the private address blocks






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






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






9. Port 20 is?






10. Port 8080 is?






11. 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?






12. Port 69 is?






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






14. Port 110 is?






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






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






17. List three network applications that use UDP






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






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






20. What does segmentation provide to communications?






21. How many bits are in an IPv4 address?






22. Why is IP 'media independent'?






23. Port 23 is?






24. What is the protocol number for UDP?






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

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






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






28. MTU stands for ?






29. ACK is?






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






31. Which of the following are true about IP?






32. UDP does or does not create a session?






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






34. TCP is a ________________ layer protocol.






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






36. What is the proper order of SYN sequence?






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






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






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






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






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






42. Port 194 is?






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






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






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






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






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

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






49. What are the three basic characteristics of IPv4?






50. 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?