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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. Which of the following are true about IP?






2. MSN messenger uses TCP or UDP?






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






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






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






6. Are well known ports registered






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






9. 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?






10. 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.






11. Port 25 is?






12. What are the three basic characteristics of IPv4?






13. Port 20 is?






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






15. Port 8080 is?






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






17. What is a broadcast domain?






18. The router a network uses to send and receive messages beyond the network is called a ___________ router.






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






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






21. What does segmentation provide to communications?






22. List three network applications that use TCP






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






24. Name the private address blocks






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






26. How many bits are in an IPv6 address?






27. List three network applications that use UDP






28. Ephermeral port is what type of port






29. What is the port range for Registered ports






30. Port 23 is?






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






32. What is the default DNS port number?






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






34. What is the port range for well known ports






35. What four tasks does the network layer perform?






36. Port 520 is?






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






38. Why is IP 'media independent'?






39. Port 194 is?






40. What is the proper order of SYN sequence?






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






42. How does UDP keep track of sequence numbers?

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

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






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






46. What are the transport layer's responsibilities?






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






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






49. SYN is?






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







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