TAILIEUCHUNG - CompTIA Network+ Certification Study Guide part 66

CompTIA’s Network+ certification Study Guide part 66 is a globally-recognized, vendor neutral exam that has helped over 235,000 IT professionals reach further and higher in their careers. The 2009 Network+ exam (N10-004) is a major update with more focus on security and wireless aspects of networking. Our new study guide has been updated accordingly with focus on network, systems, and WAN security and complete coverage of today’s wireless networking standards. | 636 CHAPTER 12 Network Troubleshooting Methodology 13. You are the administrator of the network shown in Figure . The user of Computeri is unable to access a shared resource located on Computers. Computeri is able to access shared resources on other subnets on the internal network as well as the Internet. Computers is able to access shared resources on Computer5 and Computer as well as resources on the Internet. When you ping Computeri from Computers you receive a Request Timed Out message. Based on this information what is the most likely cause of the connectivity issue A. The router interface attached to Subnet D is malfunctioning. B. The router interface attached to Subnet C is malfunctioning. C. Router B does not have a route from Subnet C to the Internet. D. Router B does not have a route from Subnet C to Subnet D. FIGURE Sample network architecture. Self Test Quick Answer Key 637 14. A user connected to Subnet B is able to use the resources housed on a machine named Server A which is located on Subnet W without trouble. When the same user is working from a different location their machine obtains an IP address from DHCP on Subnet D and they are no longer able to connect to Server A. You have been attempting to determine the problem. So far you have utilized the ipconfig tool to verify the IP configuration of both the server and the client and both appear correct. Which of the following troubleshooting steps would be a logical next choice Choose all that apply. A. From the user workstation on Subnet D ping the default gateway. B. From Server A ping the default gateway. C. From the user workstation ping another machine on the same subnet as Server A. D. From the user workstation ping the loopback address. 15. Your e-mail server is having network connectivity problems. You have replaced the NIC and reconfigured the IP address. The last step that you take is to start the e-mail services and all services have now started successfully without generating

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