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. A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?






2. What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?






3. 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?






4. CDP is being used trhoughout the CK network. What are two reasons why the CK network administrator would use CDP?






5. Which two of the following values does STP take into consideration when it elects the root bridge?






6. Which three of the protocols below belong to the application layer? (Select three answer choices)






7. A Certkiller technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the sh






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






9. You are logged into a router and wish to view the layer 3 information about your neighboring Cisco routers. What IOS command gives layer 3 information for of the directly connected router interfaces?






10. 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






11. You want to influence the root bridge selection within the Certkiller LAN. Which two values are used by spanning tree protocol to elect a root bridge? (Choose two.)






12. Two stations on the Certkiller LAN transmit at the same time - resulting in a collision. What happens when a collision occurs on the network?






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






14. Which of the following correctly describe steps in the OSI date encapsulation process?






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






16. As the Certkiller network administrator - you are required to have a firmunderstanding of the OSI model. Why does the data communication industry use the layered OSI reference model?






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






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






19. 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?






20. 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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21. 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?






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






23. Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet?






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






25. In which circumstance are multiple copies of the same unicast frame likely to be transmitted in the Certkiller Switched LAN?






26. Which fields are included in the TCP header?






27. Split horizon has been enabled within the Certkiller routed network. Which one of the following statements best explains the split horizon rule?






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






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






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






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






32. When a switch port is used as a VLAN trunk - which of the following trunk modes are valid?






33. Which two statements describe the operation of the CSMA/CD access method - which is in use on the Certkiller network?






34. Which of the following devices can the Certkiller network administrator use to segment the LAN?






35. 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?






36. A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role of the Root Bridge?






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






38. 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.






39. A new switch is installed in the Certkiller network. This switch is to be configured so that VLAN information will be automatically distributed to all the other Cisco Catalyst switches in the network. Which of the conditions below have to be met in o






40. Which of the following services use TCP?






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






42. Which of the following can lead to the contribution of LAN traffic congestion?






43. Both bridges are switches are being used throughout the CK LAN. Which of the following statements are true regarding bridges and switches in this network?






44. The corporate head office of Certkiller has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence - wh






45. 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






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






47. While troubleshooting a connectivity problem - the Certkiller network administrator notices that a port status LED on a Cisco Catalyst Series switch is alternating between green and amber. Which condition could this indicate?






48. The Certkiller network administrator needs to a switch named CK1 to become the root bridge for a redundant path switched network. What can be done to ensure that CK1 will always assume the role as the root bridge?






49. 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)






50. 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?






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