TestOut PC Pro - 11.9 Network Troubleshooting

Several of your employees are experiencing limited connectivity issues when trying to access some websites on the internet from their workstations. However, they can access the local company network without any problems. You have already tried using the ip and ipconfig commands to determine that the websites can be reached and that the IP information on the workstations is configured properly. You know that the connection to your internet service provider is working properly as well. What should you do next?

• Make sure that the DNS server is functioning properly.

• Check for port flapping on the network switch.

• Verify that the workstations' DNS server information is correct.

• Replace the workstations' network cables.

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet using the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . . . . : Broadcom network adapter Physical Address. . . . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled. . . . . . . . . . : No Autoconfiguration Enabled. . . : Yes IPv4 Address . . . . . . . . . : 192.168.1.102(Preferred) Subnet Mask . . . . . . . . . . : 255.255.255.0 Default Gateway. . . . . . . . . : 192.168.2.1 DNS Servers. . . . . . . . . . . : 192.168.2.20 Which of the following is the MOST likely cause of the problem?

• Incorrect default gateway

• Incorrect DNS server address

• Incorrect subnet mask

• Incorrect IP address

Which of the following issues causes variations in the latency of VoIP packets?

• Jitter

• Half duplex

• QoS

• Port flapping

You have just installed a wireless network, but the network is experiencing slow speeds, especially when accessing the internet from your workstation. Which action should you try FIRST to resolve the issue?

• Move your workstation closer to the wireless access point.

• Move the wireless access point.

• Reset your wireless router to the factory defaults.

• Add a network extender.

Which of the following is a common cause for high latency issues on a network?

• Port flapping

• Malware

• Limited connectivity

• A bad switch or router

You have had several employees call the help desk where you work, complaining that they are not able to reach the www.widgets.com server. To help troubleshoot this issue, you decide to run a variety of commands. Which of the following commands is MOST likely to return the IP address of the desired server?

• ipconfig /all

• ipconfig www.widgets.com

• ping www.widgets.com

• ipconfig widgets

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

• DNS server

• Default gateway

• IP address

• Subnet mask

After several new computers are connected to a network device, every computer connected to the device begins to experience slow transfer speeds. Which of the following is the FIRST step to troubleshoot this problem?

• Use a loopback plug to determine whether the NIC in each computer is good.

• Determine whether the network device is a hub or a switch.

• Use a loopback plug to determine whether each port on the network device is good.

• Use a cable tester to determine whether all cables between each computer and the device are good.

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet, which uses the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . . . . : Broadcom network adapter Physical Address. . . . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled. . . . . . . . . . : No Autoconfiguration Enabled. . . : Yes IPv4 Address. . . . . . . . . . : 192.168.1.102(Preferred) Subnet Mask. . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . : 192.168.1.20 192.168.1.27 Which of the following is the MOST likely cause of the problem?

• Incorrect IP address

• Incorrect DNS server address

• Incorrect subnet mask

• Incorrect default gateway

A laptop has a wired connection to a network and is configured with a static IP address. The link light on the NIC is lit, but the laptop cannot communicate with any hosts on the local network. Which of the following is the MOST likely cause of the issue?

• The network settings are configured with the wrong gateway address.

• Packet collisions are preventing the laptop from sending or receiving network communications.

• The laptop is connected to a hub instead of a switch.

• The IP address conflicts with another host on the local network.