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Ch 19. chapter review

QuestionQuestionQuestionAnswerAnswer
3. when wireless users complain that they are losing their connection to applications during a session what is the source of the problem? a. incorrect SSID b. latency c. incorrect encryption d. MAC address filter 3 3 3. B. When wireless users complain that the network is slow (latency) or that they are losing their connection to applications during a session, it is usually latency arising form a capacity issue. 3
4. several users can't log in to the server. which action would help you narrow the problem down to the workstations, network, or server? a. run tracery from a workstation b. check the server console for user connections c. run netstat on all workstati 4. d. check the network diagnostics 4 4. B. Although all of these are good tests for network connectivity, checking the server console for user connections will tell you whether other users are able to log into the server. if they can, the problem is most likely related to one of those user's 4. workstations. if they can't, the problem is either the server or network connection. this helps narrow down the problem.
5. a user can't log in to the network. she can't even connect to the Internet over the LAN. other users in the same areas aren't experiencing any problems. you attempt to log in at this user from your workstation with her username and password and don't 5. experience any problems. however, you can't log in with either her username or yours from her workstation.what is the cause of the problem? a.insufficient rights to access the server b.a bad patch cable c.server down d.wrong username and password 5 5. B. Because of all the tests given and their results, you can narrow the problem down to the network connectivity of that workstation. and because no other users in her area are having the same problem, it can't be the hub or server. you can log in 5. as the user from your workstation, so you know it isn't a rights issue or username/password issue. the only possible answer listed is a bad patch cable.
6. a suer is experiencing problems logging in to a Unix server.he can connect to the internet over the LAN. other users in the same area aren't experiencing any problems.you attempt logging in as this user from your workstation with his username and 6. password and don't experience any problems. however, you can't log in with either his username or yours from his workstation. what's the problem? a. the Caps Lock key is pressed b.the network hub is malfunctioning c.you have a downed server 6. d. you have a jabbering NIC. 6. A. Because other users in the same area aren't having a problem, it can't be a downed server, network hub, or jabbering NIC. and because both you and the user can't log in, more than likely it's a problem specific to that workstation. the only one that 6. would affect your ability to log in from that station is the Caps Lock key being pressed. that will cause the password to be in all uppercase, and thus it will probably be rejected.
7. you receive a call from a user who is having issues connecting to a new VPN. which is the first step you should take? a. find out what has changed? b. reboot the workstation c. document the solution d. identify the symptoms and potential causes 7 7 7. D. Since this is a new connection, you need to start by troubleshooting and identifying the symptoms and potential causes. 7
8. a workstation presents an error message to a user. the message states that a duplicate IP address has been detected on the network. after establishing what has changed in the network, what should be the next step using the standard troubleshooting 8. model? a. test the result b. select the most probable cause c. create an action plan d. identify the results and effects of the solution 8 8. B. According to the Network+ troubleshooting model, the next step would be step 2, establishing the most probable cause. 8
9. you have gathered info on a network issue and determined the affected areas of the network. what is your next step in resolving this issue? a. you should implement the best solution for the issue. b. you should test the best solution for the issue 9. c. you should check to see if there have been any recent changes to this affected part of the network d. you should consider any negative impact to the network that might be caused by a solution 9 9. C. After determining the affected area, you need to find out if any changes have taken place. 9
10. a user calls you, reporting a problem logging in to the corporate intranet. you can access the website without problems using the user's username and password. at your request, the user has tried logging in from other workstations but has been 10. unsuccessful. what's the problem? a. the user is logging in incorrectly b. the network is down c. the intranet server is locked up d. the server is not routing packets correctly to that user's workstation. 10 10. A. Because the user can't log in correctly from any machine, more than likely he is using the wrong procedure for logging in. because no one else is having that problem, (including yourself), the problem must be related to that user. 10
11. you have just implemented a solution and you want to celebrate your success. but what should you do next before you start your celebration? a. gather more info about the issue b. document the issue and the solution that was implemented 11. c. test the solution and identify other effects it may have. d. escalate the issue. 11 11. C. After you have implemented a solution, you need to test if the solution works and identify other effects it may have. 11
12. you can ping the local router and web server that a local user is trying to reach, but you can't reach the web page that resides on that server. from step 2 of the troubleshooting model, what is a possible problem that would lead to this situation? 12. a. your network cable is unplugged b. there is a problem with your browser c. your NIC has failed d. the web server is unplugged. 12 12. B. Because you can't reach the web page that resides on the server, the problem is most likely related to a problem with your browser 12
13. when troubleshooting an obscure network problem, what physical conditions should be reviewed to make sure the network device is operating correctly? a. excessive heat b. low/excessive humidity c. ESD problems d. all of the problems 13 13 13. D. From a design standpoint, the physical environment for a server should be optimized for items such as placement, temperature, and humidity. when troubleshooting,don't forget to check the physical conditions 13. under which the network device is operating. check for problems such as those mentioned here as well as EMI/RFI problems, power problems, and unplugged cables.
14. which of the following is not a basic physical issue that can occur on a network when a user is connected via cable? a. crosstalk b. shorts c. open impedance mismatch d. DNS configuration 14 14 14. D. Because most of today's networks still consist of large amounts of copper cable, networks can suffer from the physical issues that have plagued all networks since the very beginning of networking 14. (and the answers here are not complete list). newer technologies and protocols have lessened these issues but have not resolved them completely.
15. you are troubleshooting a LAN switch and have identified the symptoms. what is the next step you should take? a. escalate the issue b. create an action plan c. implement the solution d. determine the scope of the problem 15 15 15. A. Once you have determined that the switch is the problem or the configuration of the switch is the problem, you need to escalate the issue. 15
16. a user calls you, complaining that he can't access the corporate intranet web server. you try the same address, and you receive a Host Not Found error. several minutes later, another user reports the 16. same problem. you can still send email and transfer files to another server. what's the problem? a. a. the hub is unplugged b. the server is not routing protocols to your workstation c. the user's workstation is not connected to the network 16. d. the web server is down. 16. D. Because other people are experiencing the problem, most likely it is either network or server related. because you can transfer files to and from another server, it can't be the network. thus, the problem is related to the web server. 16
17. you have implemented and tested a solution and identified any other effects the solution may have. what is your next step? a. create an action plan b. close the case and head home for the day c. reboot the Windows server d. document the solution 17 17 17. D. After investigating the problem thoroughly and successfully testing and resolving an issue, you need to document the solution. 17
18. users are reporting that they can access the internet but not the internal company website. which of the following is the most likely problem? a. the DNS entry for the server is non-authoritative b. the intranet server is down 18. c. the DNS address handed out by DHCP is incorrect. d. the default gateway is incorrect 18 18.B. Since users can get to the internet, this means the DNS server is working and they have the correct default gateway. the intranet server is probably down. 18
19. several users have complained about the server's poor performance as of late. you know that the memory installed in the server is sufficient. what could you check to determine the source of the problem? 19. a. server's NIC link light b. protocol analyzer c. performance-monitoring tools d. server's system log file 19 19. C. Performance-monitoring tools can give you an idea of how busy the server and the rest of the network are. these tools use graphs to indicate how much traffic is going through the server. 19
20. you lose power to your computer room and the switches in your network do not come back up when everything is brought online. after you have identified the affected areas, established the cause, and escalated this problem, what do you do next? 20. a. start to implement a solution to get those users back online ASAP b. create an action plan and solution c. meet with the emergency response team to determine the next step. d. copy all the working router's configurations to the nonworking switch 20 20. C. Once you escalate the problem, you are done with the seven-step model. meet with the excavation team to determine the next step. 20
1.Which of the following are not steps in the Network+ troubleshooting model? choose all that apply. a. reboot the servers b. identify the problem c. test the theory to determine the cause d. implement the solution or escalate the necessary 1. e. document findings, actions, and outcomes f. reboot all the routers 1. A,F. Rebooting servers and routers are not part of the troubleshooting model. 1
2. you have a user who can't connect to the network. what is the first thing you could check to determine the source of the problem? a. workstation configuration b. connectivity c. patch cable d. server configuration 2 2 2. B. You need to check basic connectivity.the link light indicates that the network card is making a basic-level connection to the rest of the network. it is a very easy item to check, and if the link light is not lit, it is usually a very simple 2. fix (like plugging in an unplugged cable).
Created by: baumsquad
 

 



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