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 information does a router need to successfully forward packets?






2. What is the protocol number for UDP?






3. 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.






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






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






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






7. How many bits are in an IPv4 address?






8. Port 20 is?






9. List three network applications that use UDP






10. Ephermeral port is what type of port






11. Port 520 is?






12. MTU stands for ?






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






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






15. Port 110 is?






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






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






18. What are the three basic characteristics of IPv4?






19. Port 25 is?






20. Which is a connection-oriented protocol - TCP or UDP?






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






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






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






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






25. What is the default DNS port number?






26. Dynamic ports fall into what category of port






27. Port 8080 is?






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






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






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






31. What is the port range for well known ports






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






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






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






35. Port 443 is?






36. How does UDP keep track of sequence numbers?

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






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






39. What is the port range for Registered ports






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






41. List three network applications that use TCP






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






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






44. What is the proper order of SYN sequence?






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






46. ACK is?






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






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






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






50. Are well known ports registered