Test your basic knowledge |

Subjects : cisco, it-skills, ccna
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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 purpose of the spanning-tree algorithm in a switched LAN?






2. The Certkiller network administrator wants to use a router named CK1 to segment the local network. What are some of the advantages of using CK1 to segment the network? (Choose two)






3. In a switched LAN network - What is the Spanning-Tree algorithm used for?






4. A Certkiller switch is configured with all ports assigned to VLAN 2. In addition - all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?






5. While troubleshooting a connectivity problem on the network - you issure the ping command from your PC command prompt - but the output shows 'request times out' At which OSI layer is this problem associated with?






6. You need to perform some initial configuration tasks on a new Certkiller switch. What is the purpose of assigning an IP address to a switch?






7. Which OSI layer header contains the address of a destination host that is on another network?






8. CDP is running between two CK devices. What information is supplied by CDP?






9. As a CCNA candidate - you will be expected to know the OSI model very well. Which of the following are associated with the application layer (layer 7) of the OSI model?






10. Which of the protocols below - operates at Layer 2 of the OSI model - and is used to maintain a loop-free network?






11. Which of the following are true of Ethernet technology?






12. When you compare the differences between half-duplex and full-duplex Ethernet - which of the following characteristics are exclusive to half-duplex?






13. Assuming you build networks to exact specifications - What is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?






14. Which three statements are true about the operation of a full-duplex Ethernet network - which is being used in the Certkiller LAN?






15. At which OSI layer is a logical path created between two host systems named CK1 and CK2 on the Certkiller LAN?






16. The system LED is amber on a new Certkiller Catalyst 2950 series switch. What does this indicate?






17. What is the IEEE standard associated with Gigabit Ethernet?






18. What are two characteristics of 'store and forward' switching?






19. Which Layer 4 protocol is used for a Telnet connections between two CK routers?






20. The Certkiller network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?






21. Certkiller users have noticed extremely slow network performance - intermittent connectivity - and connection losses. After entering the 'show interfaces' command - you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that






22. You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network?






23. Which layer of the OSI reference model is responsible for ensuring reliable end to end delivery of data?






24. The CK network administrator needs to determine what LAN devices to install on the CK network. What are two advantages of using Layer 2 Ethernet switches over hubs?






25. Some of the older Certkiller switches store the entire frame before forwarding it to the destination. What are two effects on network performance of configuring a switch to do this?






26. You are experiencing intermittent issues relating to congestion within the Certkiller network. What are the possible causes of congestion on this LAN?






27. Although TCP segments are similar to UDP segments - TCP packets contains some additional fields. Which of the following are found in a TCP header - but not in a UDP header?






28. The Certkiller corporate LAN consists of one large flat network. You decide to segment this LAN into two separate networks with a router. What will be the affect of this change?

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29. Which of the following are spanning tree port states?






30. What kind of cable should be used to establish a trunked line between two Catalyst switches?






31. A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?






32. You need to perform some initial configuration tasks on a new Certkiller switch. What are the possible trunking modes for this switch port?






33. Which of the following correctly describe the various functions and virtues of a router?






34. Which line from the output of the show ip interface command indicates that there is a Layer 1 problem?






35. At which layer of the OSI model does the protocol that provides the information displayed by the 'show cdp neighbors' command operate?






36. A host computer has been correctly configured with a static IP address - but the default gateway is incorrectly set. Which layer of the OSI model will be first effected by this configuration error?






37. Cisco is the leader in the router market space. What basic functions do their routers perform in a network?






38. With regard to Ethernet media access methods - which of the following are true?






39. When comparing and contrasting the similarities and differences between bridges and switches - which of the following are valid statements?






40. By default - which of the following factors determines the spanning-tree path cost?






41. Which of the following services use TCP?






42. CK1 is a switch in the Certkiller network. Why will CK1 never learn the broadcast address?






43. Acknowledgements - sequencing - and flow control are functions that are handled by which layer of the OSI model?






44. You unsuccessfully try to ping the Internet from the PC host on the LAN. During the troubleshooting process - you enter the 'show ip nat translations' command but the output is blank. What is the most likely cause of the problem?






45. The LAN needs are expanding at the CK corporate office - which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the CK network. Which of the following are layer 1 devices that you can use?






46. Which of the protocols below use TCP at the transport layer?






47. Which protocol uses TCP port 443 at layer 4?






48. While troubleshooting a network connectivity problem - a Certkiller technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However - when the ping command is issued from the works






49. Which of the following are types of flow control?






50. You have set up an Internet based FTP server - where people can upload and download files. In terms of the OSI model - What is the highest layer used during the FTP sessions.







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