TAILIEUCHUNG - CompTIA Network+ Certification Study Guide part 78

CompTIA’s Network+ certification Study Guide part 78 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. | 756 Appendix C FIGURE Computer1 Computer Computer3 Computer4 Subnet C Gateway Subnet A Gateway -J Router B Subnet D Gateway 3 Router A Computer5 Computer6 Subnet B Gateway Computer Computer8 Correct answers and explanations A. Answer A is correct because subnet C has a network address of 24 and the address of is an appropriate client IP address for this subnet. Incorrect answers and explanations B C and D. Answer B is incorrect because is an appropriate IP address for this subnet but it is already configured on the router as the default gateway for the segment. Answer C is incorrect because is not a valid client IP address. Answer D is incorrect because is a broadcast address and cannot be configured on a client machine as a valid IP address. 9. You are the administrator for the network shown in Figure . You receive a help desk call from the user of Computer8 stating that she cannot browse the Internet or access a shared folder located on Computer5. Upon investigating the issue you find that Computer is able to access the Internet and other shared resources but Computer8 cannot ping any other hosts on the network. Based on this information which of the following are likely points of failure that you should investigate Each selection represents a complete choice. Select all that apply. A. The NIC installed in Computer8 B. The network cable attaching Computer8 to the network Appendix C 757 C. The NIC installed in Router A attached to Subnet B D. The TCP IP configuration of Computer Correct answers and explanations A and B. Answer A is correct because the issue appears to be localized to Computers. Since other computers on the

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