1.
You are troubleshooting a connectivity problem on a workstationthat is unable to connect to the network. You have verifiedthat the physical connectivity of the system is okay, andyou suspect that the problem is related to the bindings of theprotocols to the network cards. You decide to use the localloopback feature of the TCP/IP stack to test the configuration.Which of the following commands could you use to dothis?
Correct Answer(s)
A. Ping 127.0.0.1
B. Ping localhost
Explanation
The correct answer is "Ping 127.0.0.1, Ping localhost."
This is because both "127.0.0.1" and "localhost" are loopback addresses that refer to the local machine. By pinging these addresses, you can test if the TCP/IP stack is functioning properly on the workstation. If the pings are successful, it indicates that the network card bindings are correct and the issue may lie elsewhere.
2.
Which Windows 2000-based utility displays detailed protocolconnection information for TCP connections?
Correct Answer
C. Netstat
Explanation
Netstat is a Windows 2000-based utility that displays detailed protocol connection information for TCP connections. It provides information about active TCP connections, listening ports, and other network statistics. It is commonly used to troubleshoot network connectivity issues and monitor network activity. NetBIOS is a different protocol used for name resolution, Nbtstat is a command-line tool used to troubleshoot NetBIOS name resolution problems, and Ping is used to test network connectivity. Therefore, the correct answer is Netstat.
3.
A user is experiencing connectivity problems to a remote system.While sitting at the user’s computer, you determine thatthe TCP/IP configuration of the workstation is correct andthat you are able to ping the local loopback, the IP address ofthe system itself, and the IP address of the default gateway.What is the next step in the troubleshooting process?
Correct Answer
D. Ping the remote host
Explanation
After confirming that the TCP/IP configuration is correct and the local loopback, IP address of the system, and IP address of the default gateway can all be pinged successfully, the next step in the troubleshooting process would be to ping the remote host. This step will help determine if the connectivity issue is specific to the remote system or if it is a broader network issue. By pinging the remote host, it will provide information on whether the problem lies with the remote system or if there are any network connectivity issues preventing communication with the remote host.
4.
The IP address of a workstation is 192.168.20.2. It’s connectedto a hub with an IP address of 192.168.20.3. Which of the followingwill check the connection status between workstationand hub?
Correct Answer
B. Ping 192.168.20.3
Explanation
The correct answer is "Ping 192.168.20.3". In order to check the connection status between the workstation and the hub, the ping command is used. By sending a ping request to the IP address of the hub (192.168.20.3), the workstation can determine if it is able to communicate with the hub. If the hub responds to the ping request, it indicates that the connection between the two devices is functioning properly.
5.
Which of the following protocol suites provides the Ping utilityfor use in troubleshooting situations?
Correct Answer
A. TCP/IP
Explanation
TCP/IP is the correct answer because it is a widely used protocol suite that provides the Ping utility for troubleshooting purposes. The Ping utility is used to test the reachability of a network device and to measure the round-trip time for packets to travel from the source to the destination. TCP/IP is the underlying protocol suite of the internet and is commonly used in networking and troubleshooting scenarios. NetBEUI, RTMP, and IPX/SPX are not known for providing the Ping utility.
6.
What does the command arp -a do when executed on aWindows 2000 system?
Correct Answer
A. It displays the list of IP addresses that have been resolved to
MAC addresses.
Explanation
The command "arp -a" when executed on a Windows 2000 system displays the list of IP addresses that have been resolved to MAC addresses. This command allows the user to view the mapping between IP addresses and their corresponding MAC addresses, which can be useful for troubleshooting network connectivity issues or identifying devices on the network.
7.
Which command can you use to view a list of the NetBIOSnames and the associated IP addresses that have been resolvedby the system?
Correct Answer
B. Nbtstat -c
Explanation
The command "nbtstat -c" can be used to view a list of the NetBIOS names and their associated IP addresses that have been resolved by the system.
8.
To view the IP address of a workstation, which of the followingis the best tool to use?
Correct Answer
C. Ipconfig
Explanation
Ipconfig is the best tool to view the IP address of a workstation. Ipconfig is a command-line utility that displays the IP configuration settings of a network interface on a Windows computer. It provides detailed information about the IP address, subnet mask, default gateway, and other network settings. This tool is specifically designed to retrieve and display the IP configuration information, making it the most suitable option for checking the IP address of a workstation.
9.
To check the connection to a remote server, which TCP/IPutility will show all routers to the remote server?
Correct Answer
A. Tracert
Explanation
Tracert is a TCP/IP utility that is used to trace the route taken by packets from the local host to a remote server. It shows all the routers or hops that the packets pass through in order to reach the destination. This utility is helpful in troubleshooting network connectivity issues by identifying the specific router or hop where the connection might be failing. Therefore, Tracert is the correct answer as it provides information about all the routers to the remote server.
10.
An installed NIC card is working properly. What will happenif you ping the card using 127.0.0.1?
Correct Answer
C. The screen shows the return of four, 32-byte packets.
Explanation
When you ping the card using 127.0.0.1, it is a loopback address that refers to the local machine itself. Therefore, if the installed NIC card is working properly, it will respond to the ping request by sending back four, 32-byte packets. This indicates that the NIC card is functioning correctly and able to communicate with itself.
11.
What TCP/IP utility displays all current connections andports?
Correct Answer
A. Netstat
Explanation
Netstat is a TCP/IP utility that displays all current connections and ports. It provides information about active network connections, listening ports, and network statistics. By using netstat, users can identify which applications or processes are using specific ports, monitor network performance, and troubleshoot network connectivity issues. Nbtstat is used for NetBIOS over TCP/IP troubleshooting, Arp is used for displaying and modifying the ARP cache, and Tracert is used to trace the route taken by packets across an IP network.
12.
What command would you use to delete entries host file?
Correct Answer
A. Arp -d
Explanation
The correct answer is "arp -d". The arp -d command is used to delete entries from the ARP cache, which is a table that maps IP addresses to MAC addresses. By using this command, you can remove specific entries from the host file, effectively deleting them.
13.
You have been called by a user who complains that access to aWeb page is very slow. What utility can you use to find thebottleneck?
Correct Answer
C. Tracert
Explanation
Tracert is a utility that can be used to find the bottleneck in accessing a web page. It traces the route that packets take from the user's computer to the destination web page, showing the time it takes for each hop along the way. By analyzing the results, the user can identify any slow or problematic hops that may be causing the slow access. This information can be used to troubleshoot and resolve the issue.
14.
What utility do you use to check your IP configuration on aWindows 95/98 workstation?
Correct Answer
A. Winipcfg
Explanation
Winipcfg is the correct utility to check IP configuration on a Windows 95/98 workstation. It is a command-line tool that displays detailed information about the IP configuration of the workstation, including the IP address, subnet mask, default gateway, and DNS servers. Netstat is a utility used to display active network connections, listening ports, and routing tables. Ping is used to test network connectivity by sending ICMP echo requests to a specific IP address. Ipconfig is a command-line tool used to display and manage the IP configuration on Windows NT/2000/XP/Vista/7/8/10 workstations.
15.
You are troubleshooting a server connectivity problem on yournetwork. A Windows 95 system is having trouble connectingto a Windows 2000 Server. Which of the following commandswould you use to display per protocol statistics on the workstationsystem?
Correct Answer
A. Netstat -s
Explanation
The correct answer is "netstat -s" because the netstat command is used to display network statistics and information, including per protocol statistics. By using this command, you can view the statistics for each network protocol on the Windows 95 system, which can help in troubleshooting the server connectivity problem.
16.
You are experiencing a problem with a workstation and wantto ping the localhost. Which two of the following are validways to check your local TCP/IP connection?
Correct Answer(s)
A. Ping 127.0.0.1
B. Ping localhost
Explanation
The correct answers are "ping 127.0.0.1" and "ping localhost" because both commands are valid ways to check the local TCP/IP connection. "127.0.0.1" is the loopback address that always refers to the local host, and "localhost" is a hostname that also points to the local machine. By pinging these addresses, you can verify if the TCP/IP connection is functioning properly on the workstation.
17.
While troubleshooting a network connectivity problem on aWindows 2000 Server, you need to view a list of the IPaddresses that have been resolved to MAC addresses. Whichof the following commands would you use to do this?
Correct Answer
D. Arp –a
Explanation
The correct answer is "arp -a". The arp -a command is used to view the ARP (Address Resolution Protocol) cache on a Windows system. The ARP cache contains a list of IP addresses that have been resolved to MAC addresses. By using the arp -a command, you can see the IP addresses and their corresponding MAC addresses, which can help in troubleshooting network connectivity issues.
18.
While troubleshooting a sporadic network connectivity problemon a Windows 2000 system, a fellow technician suggeststhat you run the ping -t command. What is the purpose of thiscommand?
Correct Answer
C. It pings the remote host continually until it is stopped.
Explanation
The purpose of the ping -t command is to continuously ping the remote host until it is manually stopped. This can be useful for troubleshooting sporadic network connectivity issues as it allows the technician to monitor the network connection over an extended period of time to identify any intermittent problems. The other options mentioned in the question do not accurately describe the purpose of the ping -t command.
19.
What utility would you use to view the TCP connections thathave been established between two systems?
Correct Answer
D. Netstat
Explanation
Netstat is the correct answer because it is a command-line utility used to view the TCP connections that have been established between two systems. It provides information about active network connections, listening ports, and various network statistics. By using netstat, users can identify the source and destination IP addresses, ports, and the status of the TCP connections. This utility is commonly used for troubleshooting network issues and monitoring network activity.
20.
Which TCP/IP utility is used to show IP addresses?
Correct Answer
C. Ipconfig
Explanation
Ipconfig is the correct answer because it is a TCP/IP utility used to show IP addresses. It is a command-line tool that displays the current configuration of the IP address, subnet mask, and default gateway for all network interfaces on a device. This utility is commonly used in Windows operating systems to troubleshoot network connectivity issues and obtain information about the network configuration.
21.
What utility do you use to check your IP configuration on aWindows 95 workstation?
Correct Answer
D. Winipcfg
Explanation
Winipcfg is the correct answer because it is a utility specifically designed for checking IP configuration on a Windows 95 workstation. It provides detailed information about the IP address, subnet mask, default gateway, and other network settings of the workstation. Ipconfig is a similar utility, but it is primarily used on newer versions of Windows. Netstat is used to display active network connections and listening ports, while Ping is used to test network connectivity.
22.
To determine the computer name of a remote server, youwould ______.
Correct Answer
D. Use the nbtstat command to resolve the name of the remote
server to its IP address
Explanation
To determine the computer name of a remote server, you would use the nbtstat command to resolve the name of the remote server to its IP address. Nbtstat is a Windows command-line tool that displays protocol statistics and current TCP/IP connections using NetBIOS over TCP/IP. By using the nbtstat command with the appropriate parameters, you can retrieve the IP address associated with the computer name of the remote server.
23.
Which TCP/IP utility is used for determining NetBIOSnames?
Correct Answer
B. Nbtstat
Explanation
Nbtstat is the correct answer because it is a TCP/IP utility used for determining NetBIOS names. Nbtstat stands for NetBIOS over TCP/IP Statistics and it provides information about NetBIOS name tables, NetBIOS name cache, and NetBIOS name resolution. This utility is commonly used to troubleshoot NetBIOS name resolution issues and to display NetBIOS name information on a Windows computer.
24.
Users on a LAN are unable to connect to the server. To isolatethe problem between workstations and server, which of thefollowing should be run?
Correct Answer
C. Netstat
Explanation
Netstat is a command-line tool used to display active network connections, listening ports, and routing tables. By running Netstat, one can identify if the server is listening on the correct ports and if there are any active connections established. This information can help isolate the problem by determining if the server is properly configured and accessible from the LAN.
25.
Which TCP/IP utility is used to show the number of packetssent and received on a workstation?
Correct Answer
B. Netstat
Explanation
Netstat is a TCP/IP utility that is used to display the number of packets sent and received on a workstation. It provides information about active network connections, listening ports, and network statistics. By using Netstat, users can monitor the network traffic and identify any issues or abnormalities in the packet transmission. Nbtstat is used to display NetBIOS over TCP/IP (NBT) protocol statistics, Nptstat is not a valid utility, and Arp is used to display and modify the Address Resolution Protocol (ARP) cache.
26.
The IP address of a workstation is 192.168.20.2. It’s connectedto a hub with an IP address of 192.168.20.3. Which of the followingwill check the connection status between workstationand hub?
Correct Answer
A. Ping 192.168.20.3
Explanation
The correct answer is "ping 192.168.20.3". The ping command is used to check the connectivity between two devices on a network. By pinging the IP address of the hub (192.168.20.3), the workstation can determine if it is able to communicate with the hub. If a response is received, it means that the connection between the workstation and the hub is active and working properly.
27.
Which commands will NOT display the MAC address of theworkstation?
Correct Answer
B. Ipconfig
Explanation
The command "ipconfig" will NOT display the MAC address of the workstation.
28.
You are working on one of the network’s servers and you wantto check connectivity to the workstations via NetBIOS names.What command would you use to do this?
Correct Answer
A. Nbtstat
Explanation
The correct answer is nbtstat. Nbtstat is a command-line tool used to troubleshoot NetBIOS name resolution problems. It allows you to check the connectivity to workstations by querying their NetBIOS names. Nslookup is used for DNS (Domain Name System) queries, netstat is used to display active network connections and listening ports, and netwatch is not a valid command.
29.
Network users report that they have slow Internet connections.You check the network with the Network Monitor utility,which reports high activity, although no users are accessingthe network. What tool would you use to list the active networkconnections?
Correct Answer
A. Netstat
Explanation
To list the active network connections, the appropriate tool to use is "netstat". Netstat is a command-line utility that displays active network connections, listening ports, and various network statistics. By using netstat, you can identify which processes or services are utilizing network resources, helping to diagnose and troubleshoot issues such as slow Internet connections.
30.
Your remote office has changed location and all of the networkdevices have been assigned new addresses. Local users have noproblems accessing the resources, but remote users can onlyaccess these devices by IP address. Which utility would youuse first to get a better understanding of the problem from aDNS perspective?
Correct Answer
D. Nslookup
Explanation
To get a better understanding of the problem from a DNS perspective, the utility that should be used first is Nslookup. Nslookup is a command-line tool that allows users to query DNS servers to obtain information about domain names, IP addresses, and other DNS records. By using Nslookup, one can check if the DNS resolution is working correctly for the remote users and determine if the DNS server is able to resolve the domain names to their corresponding IP addresses. This will help in identifying any DNS-related issues that may be causing the problem for the remote users.
31.
When running the Ping command, you receive a report thatsays: “Destination Unreachable.” What is the most likely causeof this response?
Correct Answer
C. There is a misconfigured router.
Explanation
The most likely cause of receiving a "Destination Unreachable" response when running the Ping command is a misconfigured router. This means that the router is not properly set up or has incorrect settings, causing it to be unable to reach the destination. This can happen due to various reasons such as incorrect routing table entries, network configuration errors, or hardware issues with the router.
32.
You are experiencing problems with the network connectivityof a Windows 2000 system, and you suspect that there mightbe a problem with an incorrect route in the routing table.Which two of the following TCP/IP utilities can you use toview the routing table?
Correct Answer(s)
B. Netstat
C. Route
Explanation
You can use the "Netstat" and "Route" utilities to view the routing table. "Netstat" displays active network connections and listening ports, and it also shows the routing table. "Route" is a command-line utility that allows you to view and manipulate the IP routing table. Both utilities can provide information about the routes in the routing table and help identify any incorrect routes that may be causing network connectivity issues.
33.
Examine the following output:Reply from 24.67.184.1: bytes=32 time=20ms TTL=64Reply from 24.67.184.1: bytes=32 time=60ms TTL=64Reply from 24.67.184.1: bytes=32 time=10ms TTL=64Reply from 24.67.184.1: bytes=32 time=10ms TTL=64Which utility generated this output?
Correct Answer
A. Ping
Explanation
The given output is a typical response from the Ping utility. Ping is used to test the connectivity between two network devices by sending ICMP echo request packets and receiving ICMP echo reply packets. The output shows that the destination IP address 24.67.184.1 responded with multiple replies, indicating that the device is reachable and responsive. The "bytes=32" indicates the size of the ICMP packets sent, and the "time" shows the round-trip time in milliseconds for each reply. The "TTL=64" indicates the Time to Live value set for the packets.
34.
Examine the following output:1 10 ms 10 ms 20 ms 24.67.184.12 20 ms 20 ms 20 ms rd1ht-ge3-0.ok.shawcable.net [24.67.224.7]3 20 ms 20 ms 30 ms rd2ht-ge4-0.ok.shawcable.net[204.209.214.238]4 60 ms 30 ms 30 ms rc2wh-atm0-2-1.vc.sha.net[204.209.214.205]5 30 ms 31 ms 230 ms rc2wt-pos2-0.wa.shawcable.net[66.163.76.37]6 30 ms 40 ms 40 ms c1-pos6-3.sttlwa1.home.net [24.7.70.37]Which command generated this output?
Correct Answer
A. Ping
Explanation
The given output is generated by the "ping" command. This command is used to send a network request to a specific IP address or domain name and receive a response. The output shows the round-trip time (in milliseconds) for each request sent to different network nodes along the path, indicating the latency or speed of the network connection.
35.
Which of the following utilities returns the number of errorsgenerated during a connection?
Correct Answer
C. Netstat
Explanation
Netstat is a command-line utility that displays active network connections and listening ports on a computer. It provides information about the network connections, including the number of errors generated during a connection. Therefore, netstat is the correct utility to use for obtaining the number of errors generated during a connection.
36.
Which of the following utilities would you typically use todetermine the number of hops to a specific destination?
Correct Answer
D. Tracert
Explanation
Tracert is the correct answer because it is a utility used to determine the number of hops (routers) between the source and destination. It traces the route taken by packets from the source to the destination, showing the IP addresses of each router along the way. This information is useful for troubleshooting network connectivity issues and identifying delays or packet loss. Nbtstat is used for NetBIOS over TCP/IP troubleshooting, Netstat displays active network connections and listening ports, and Ping is used to test connectivity between two devices.
37.
Which TCP/IP command produces the following output?Proto Local Address Foreign Address StateTCP laptop:1028 LAPTOP:0 LISTENINGTCP laptop:1031 LAPTOP:0 LISTENINGTCP laptop:1093 LAPTOP:0 LISTENINGTCP laptop:50000 LAPTOP:0 LISTENINGTCP laptop:5000 LAPTOP:0 LISTENINGTCP laptop:1031 n218.audiogalaxy.com:ftp ESTABLISHEDTCP laptop:1319 h24-67-184-65.ok.shawcable.net:nbsess
Correct Answer
A. Netstat
Explanation
The correct answer is "netstat". This command is used to display active network connections, routing tables, and network statistics. In this case, running the "netstat" command would produce the output shown, which includes information about the local and foreign addresses, as well as the state of each TCP connection.
38.
Which of these commands generates the following output?7 60 ms 30 ms 40 ms home-gw.st6wa.ip.att.net [192.205.32.249]8 30 ms 40 ms 30 ms gbr3-p40.st6wa.ip.att.net [12.123.44.130]9 50 ms 50 ms 60 ms gbr4-p10.sffca.ip.att.net [12.122.2.61]10 60 ms 60 ms 60 ms gbr3-p10.la2ca.ip.att.net [12.122.2.169]11 90 ms 60 ms 70 ms gbr6-p60.la2ca.ip.att.net [12.122.5.97]
Correct Answer
C. Tracert
Explanation
The correct answer is tracert. Tracert is a command used in Windows to trace the route that packets take to reach a destination IP address. It shows the IP addresses and response times of each hop along the route. The given output shows the IP addresses and response times for each hop from the source to the destination.
39.
A user calls to inform you that she can’t access the Internetfrom her system. When you visit the user, you run the ipconfig/all utility and see the following information. What is themost likely reason the user is having problems accessing theInternet?C:\>ipconfig /allWindows 2000 IP ConfigurationHost Name . . . . . . . . . . . . : LAPTOPPrimary DNS Suffix . . . . . . . :Node Type . . . . . . . . . . . . : BroadcastIP Routing Enabled. . . . . . . . : NoWINS Proxy Enabled. . . . . . . . : NoEthernet adapter Local Area Connection:Connection-specific DNS Suffix . :Description . . . . . . . . . . . : Intel 8255x-based PCI EthernetPhysical Address. . . . . . . . . : 00-D0-59-09-07-51DHCP Enabled. . . . . . . . . . . : NoIP Address. . . . . . . . . . . . : 192.168.2.1Subnet Mask . . . . . . . . . . . : 255.255.255.0Default Gateway . . . . . . . . . :DNS Servers . . . . . . . . . . . : 192.168.2.10192.168.2.20
Correct Answer
B. The default gateway setting is not configured.
Explanation
The most likely reason the user is having problems accessing the Internet is because the default gateway setting is not configured. The default gateway is responsible for routing network traffic from the local network to external networks, such as the Internet. Without a configured default gateway, the user's system does not know where to send network traffic that is destined for external networks. This would result in the user being unable to access the Internet.
40.
To determine delays from a local machine to a remote serveron the Internet, you would ________.
Correct Answer
C. Tracert to the IP address of the server
Explanation
To determine delays from a local machine to a remote server on the Internet, you would use the "tracert" command to trace the route taken by the network packets from the local machine to the remote server. This command provides information about each hop along the route, including the time it takes for the packets to reach each hop. By analyzing the time taken at each hop, you can identify any delays or bottlenecks in the network path between the local machine and the remote server.
41.
Which of the following TCP/IP commands generates the followingoutput?Interface: 192.168.0.2 --- 0x2Internet Address Physical Address Type192.168.0.1 00-0d-44-b2-a5-c3 static192.168.0.10 00-0b-47-a5-19-43 dynamic
Correct Answer
B. Arp -a
Explanation
The correct answer is arp -a. This command generates the output that displays the ARP (Address Resolution Protocol) cache table, which contains the mapping between IP addresses and their corresponding MAC addresses. The output shows the IP addresses and physical addresses (MAC addresses) of devices connected to the network, along with their type (static or dynamic).
42.
Which of the following TCP/IP commands generates the followingoutput?1 15 ms <10 ms <10 ms 192.168.2.12 31 ms 32 ms 31 ms wbar8.sea1-4-4-064-001.sea1.dslverizon.net [4.4.64.1]3 31 ms 31 ms 47 ms 4.9.0.1614 31 ms 31 ms 47 ms vnsc-pri.sys.gtei.net [4.2.2.1]Trace complete.
Correct Answer
A. Tracert
Explanation
The correct answer is "tracert". The given output is a result of the tracert command, which is used to trace the route taken by packets across an IP network. Tracert displays the IP addresses and response times of each hop (router) along the path from the source to the destination. In this case, the output shows the IP addresses and response times for each hop along the route to the destination.
43.
Which of these TCP/IP commands generates the followingoutput?Connection-specific DNS Suffix . : server.isp.comIP Address. . . . . . . . . . . .: 192.168.0.2Subnet Mask . . . . . . . . . . .: 255.255.255.0Default Gateway . . . . . . . . .: 192.168.0.1
Correct Answer
B. Ipconfig
Explanation
The correct answer is ipconfig. The ipconfig command is used to display the IP configuration settings of a computer. It provides information about the IP address, subnet mask, default gateway, and DNS suffix. In this case, the output shown matches the format and content of the ipconfig command, confirming it as the correct answer.
44.
Which TCP/IP utility generates the following output?Local Area Connection:Node IpAddress: [192.168.0.1] Scope ID: []NetBIOS Remote Machine Name TableName Type StatusComputername <00> UNIQUE RegisteredDOMAIN <00> GROUP RegisteredComputername <20> UNIQUE RegisteredUSER <03> UNIQUE RegisteredMAC Address = 00-10-AB-1D-A1-FF
Correct Answer
A. Nbstat
Explanation
The correct answer is Nbstat. Nbstat is a TCP/IP utility that is used to display NetBIOS over TCP/IP statistics for the local computer. The output provided in the question includes information about the Node IpAddress, NetBIOS Remote Machine Name, TableName, Type, and Status. This information is typically displayed by the Nbstat utility.
45.
What is the value of NIC card LEDs?
Correct Answer
D. They tell you whether the workstation system board is
working.
46.
You are troubleshooting a problem in which a workstation isexperiencing intermittent connectivity problems. You arrive atthe workstation and notice that the link light on the networkcard flashes intermittently. Which three of the following troubleshootingsteps might you try?
Correct Answer(s)
A. Plug the workstation into a different port on the network
hub.
B. Change the network card in the workstation.
C. Try a known working cable on the connection to see whether
it works.
Explanation
The link light flashing intermittently on the network card indicates a problem with the physical connection between the workstation and the network. To troubleshoot this issue, you can try plugging the workstation into a different port on the network hub to see if the problem lies with the port. Changing the network card in the workstation can also help determine if the issue is with the card itself. Additionally, trying a known working cable on the connection can help identify if the cable is faulty. Changing the IP address is not relevant to resolving the intermittent connectivity problem.
47.
A workstation NIC link light isn’t illuminated. After replacingthe NIC, the light still isn’t lit. What should be done next?
Correct Answer
B. Replace the cable connecting the NIC to the hub.
Explanation
If the workstation NIC link light is not illuminated after replacing the NIC, it suggests that the issue may lie with the cable connecting the NIC to the hub. Therefore, the next step should be to replace the cable. This is because a faulty or damaged cable can prevent the link light from illuminating, even if the NIC itself is functioning properly. Replacing the cable will help ensure a proper connection between the NIC and the hub, potentially resolving the issue.
48.
You are troubleshooting a problem in which a workstation isexperiencing intermittent connectivity problems. You noticethat the link light on the network card flashes intermittently.Which three of the following are valid next troubleshootingsteps?
Correct Answer
A. Plug the workstation into a different port on the network
hub.
Explanation
By plugging the workstation into a different port on the network hub, you can determine if the issue is specific to the port or if it is a problem with the workstation itself. This step helps to isolate the cause of the intermittent connectivity problems.
49.
After installing a NIC card and properly setting up the workstation,there’s no link light on the NIC. You test the networkcable and it is good. What action should be taken next?
Correct Answer
A. Run diagnostics on the NIC such as a hardware loopback.
Explanation
After installing a NIC card and ensuring proper setup, if there is no link light on the NIC despite testing the network cable and confirming it is functioning correctly, the next action should be to run diagnostics on the NIC. Performing a hardware loopback test can help identify any issues with the NIC and determine if it is functioning properly. This test can help troubleshoot and identify any potential problems with the NIC that may be causing the lack of link light.
50.
A group of clients on a network segment complains that theyare unable to access a remote web server, which is the onlything they are allowed to access outside of their network. Thetechnician notes that the red LED of the Link light of therouter that services the clients’ network is lit solid. The webserver can be accessed successfully through another router ona different remote network. What is the problem with the firstrouter?
Correct Answer
B. The router is detecting too many packet collisions.
Explanation
The solid red LED on the Link light of the router indicates that there are too many packet collisions occurring. Packet collisions occur when two devices on the network try to transmit data at the same time, causing the packets to collide and become corrupted. This can lead to network congestion and result in clients being unable to access the remote web server.