7.4.6 Practice Questions

You work for a large multinational organization that has an extensive global network that is interconnected using WAN links and routers. Lately, users in one location have complained that they are unable to access resources stored on a server named FS23 in a South American branch office. To troubleshoot the issue, you have done the following: • Verified that the server is up and running. • Verified that the various routers in between the two locations are up and running. You suspect that perhaps one of the routers between the two locations may be dropping packets. To test this theory, you enter the ping FS23 -f -l 1500 command on your workstation. The ping command returns the following command for each ping packet sent: "Packet needs to be fragmented but DF set" What does this mean? Collisions are occurring on the network. Communications are functioning normally between your workstation and the target server. One of the intermediate routers is an MTU black hole One of the intermediate routers is offline. The destination host is down.

You have just connected a new computer to your network. The network uses static IP addressing. You find that the computer can communicate with host on the same subnet, but not with hosts on a different subnet. No other computers are having a problem. Which of the configuration values would you most likely need to change? IP address Subnet mask Default gateway DNS server

You manage a network with multiple subnets connected to the internet. A user reports that she can't access the new server used in the accounting department. You check the problem and find out that her computer cannot access any server on that subnet. However, the computer does access other computers on other subnets as well as the internet. Which of the following is most likely the cause of the problem? Missing route on the default gateway router Incorrect VLAN membership of the accounting server Incorrect default gateway setting on the computer Switching loop on the user's subnet

You manage a network with multiple subnets connected to the internet. A user reports that she can't access the internet. You investigate the problem and find that she can access all hosts on the private network, but no hosts on the internet. Which of the following is likely the cause of the problem? Switching loop on the user's subnet Incorrect default gateway setting on the computer Duplex mismatch between a switch and a router Missing default route on a router

Examine the following output: 4 22 ms 21 ms 22 ms sttlwa01gr02.bb.ispxy.com [154.11.10.62] 5 39 ms 39 ms 65 ms plalca01gr00.bb.ispxy.com [154.11.12.11] 6 39 ms 39 ms 39 ms Rwest.plalca01gr00.bb.ispxy.com [154.11.3.14] 7 40 ms 39 ms 46 ms svl-core-03.inet.ispxy.net [205.171.205.29] 8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1] Which of these commands produced this output? tracert nslookup pingroute ping

Which of the following utilities would you use to view the routing table? traceroute tracert mtr dig route

Which of the following commands would display the output shown here? route print ifconfig mtr host

Which TCP/IP utility gives you the following output? nslookup ifconfig ipconfig tracert

What TCP/IP utility can you use to see if a router is working properly? nbtstat netstat tracert nslookup